{
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    "date": "2026-10-26",
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    "profiles": 163,
    "relevant_profiles": 132,
    "preparations": 30,
    "observations": 80,
    "frozen_observations": 46,
    "new_observations": 34,
    "bioactivity_only_profiles": 21,
    "exact_PWWP_structural_profiles": 130,
    "verified_depictions": 139,
    "reconciled_duplicate_rows": 0,
    "candidate_records": 150,
    "curated_scope": "Documented targeted snapshot; not an exhaustive inventory of all literature compounds. Coordinate proximity and assay measurements are independent evidence dimensions."
  },
  "filters": {
    "q": "",
    "protein": "",
    "domain": "UP:Q9BZ95:PWWP1",
    "bound": "",
    "pdb": "",
    "identity": "",
    "role": "",
    "method": "",
    "endpoint": "",
    "relation": "",
    "potency_min": "",
    "potency_max": "",
    "source": "",
    "year": "",
    "organism": "",
    "construct": "",
    "status": "",
    "missing": "",
    "scope": "relevant",
    "view": "structural",
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  },
  "compounds": [
    {
      "aliases": [
        "BI-9321",
        "[4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-phenyl]methanamine"
      ],
      "assay_count": 3,
      "associated_pdb_ids": [
        "6G2O"
      ],
      "bound_structure_count": 1,
      "category": "Bioactivity + bound structure",
      "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
      "classifications": [
        "Reported chemical probe"
      ],
      "compound_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
      "curation_version": "phase5-1.0.0",
      "depiction": {
        "calculated_HBA": 4,
        "calculated_HBD": 1,
        "calculated_TPSA": 56.73,
        "calculated_formula": "C22H21FN4",
        "calculated_logP": 4.5169,
        "calculated_molecular_weight": 360.436,
        "computed_inchikey": "WOAOENGFAAUUGT-UHFFFAOYSA-N",
        "descriptor_scope": "RDKit calculation for the source identity; not an experimental measurement",
        "files": {
          "dark": "b3b05180c8514008d5a1-dark.svg",
          "light": "b3b05180c8514008d5a1-light.svg"
        },
        "rdkit_version": "2025.09.3",
        "status": "verified_smiles_full_inchikey_match"
      },
      "development_status": "Not independently curated",
      "domain_ids": [
        "UP:Q9BZ95:PWWP1"
      ],
      "entity_kind": "chemical_identity",
      "genes": [
        "NSD3"
      ],
      "has_bioactivity_only": false,
      "has_source_conflict": true,
      "identity": {
        "aliases": [
          "[4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-phenyl]methanamine"
        ],
        "ccd_ids": [
          "EJE"
        ],
        "ccd_names": "[\"[4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-phenyl]methanamine\"]",
        "ccd_types": "[\"non-polymer\"]",
        "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
        "connectivity_block": "WOAOENGFAAUUGT",
        "curated_source_sha256": null,
        "curation_version": "frozen-v1.2",
        "external_identifiers": {},
        "formal_charge_by_ccd": "{\"EJE\": 0}",
        "formulae": "[\"C22 H21 F N4\"]",
        "geometry_note": "CCD ideal SDF is a reference chemical geometry, not a deposited bound pose.",
        "identity_status": "complete_deposited_InChIKey",
        "inchikey": "WOAOENGFAAUUGT-UHFFFAOYSA-N",
        "inventory_origin": "v1_CCD_inventory",
        "isomeric_smiles": "Cc1cc(cc(c1c2c(n(cn2)C)c3ccnc4c3ccc(c4)F)C)CN",
        "primary_name": "[4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-phenyl]methanamine",
        "retrieval_date": "2026-10-24",
        "smiles_stereo_by_ccd": "{\"EJE\": \"Cc1cc(cc(c1c2c(n(cn2)C)c3ccnc4c3ccc(c4)F)C)CN\"}",
        "source_metadata_sha256": "{\"EJE\": \"4420a58e1e2dc7985843e11811dec4d72c963f256b3f66eda18bde5db1f66e3c\"}",
        "source_urls": [
          "https://www.rcsb.org/ligand/EJE"
        ]
      },
      "identity_note": "Complete deposited identity retained; no connectivity-only or name-only merge.",
      "identity_resolved": true,
      "is_control": false,
      "is_probe": true,
      "measured_observation_count": 3,
      "name": "BI-9321",
      "negative_count": 0,
      "observation_ids": [
        "PWWP:ASSAY:0008",
        "PWWP:ASSAY:0009",
        "PWWP5:ASSAY:0001"
      ],
      "pdb_structure_count": 1,
      "preparation_count": 1,
      "preparation_ids": [
        "PREP:BI-9321"
      ],
      "protein_ids": [
        "UP:Q9BZ95"
      ],
      "relationships": [
        {
          "direction": "inverse",
          "object_id": "INCHIKEY:SFZHMKDAVPIXRB-UHFFFAOYSA-N",
          "object_preparation_id": "PREP:BI-9321",
          "original_object_id": "PREP:BI-9321",
          "original_subject_id": "PREP:BI-9466",
          "predicate": "negative_control_for",
          "relationship": "has negative control for",
          "relationship_id": "P5:REL:BI-9466",
          "retrieval_date": "2026-10-26",
          "scope": "weaker NSD3-PWWP1 antagonist control",
          "source_id": "P5:S:SGC_BI9321",
          "source_url": "https://www.thesgc.org/chemical-probes/bi-9321",
          "subject_id": "INCHIKEY:SFZHMKDAVPIXRB-UHFFFAOYSA-N",
          "subject_preparation_id": "PREP:BI-9466",
          "version": "phase5.chemical_curation.1.1.0"
        }
      ],
      "relevant": true,
      "search_text": "bi-9321 inchikey:woaoengfaauugt-uhfffaoysa-n bi-9321 [4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-phenyl]methanamine nsd3 up:q9bz95:pwwp1 6g2o {\"aliases\":[\"[4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-phenyl]methanamine\"],\"ccd_ids\":[\"eje\"],\"ccd_names\":\"[\\\"[4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-phenyl]methanamine\\\"]\",\"ccd_types\":\"[\\\"non-polymer\\\"]\",\"chemical_id\":\"inchikey:woaoengfaauugt-uhfffaoysa-n\",\"connectivity_block\":\"woaoengfaauugt\",\"curated_source_sha256\":null,\"curation_version\":\"frozen-v1.2\",\"external_identifiers\":{},\"formal_charge_by_ccd\":\"{\\\"eje\\\": 0}\",\"formulae\":\"[\\\"c22 h21 f n4\\\"]\",\"geometry_note\":\"ccd ideal sdf is a reference chemical geometry, not a deposited bound pose.\",\"identity_status\":\"complete_deposited_inchikey\",\"inchikey\":\"woaoengfaauugt-uhfffaoysa-n\",\"inventory_origin\":\"v1_ccd_inventory\",\"isomeric_smiles\":\"cc1cc(cc(c1c2c(n(cn2)c)c3ccnc4c3ccc(c4)f)c)cn\",\"primary_name\":\"[4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-phenyl]methanamine\",\"retrieval_date\":\"2026-10-24\",\"smiles_stereo_by_ccd\":\"{\\\"eje\\\": \\\"cc1cc(cc(c1c2c(n(cn2)c)c3ccnc4c3ccc(c4)f)c)cn\\\"}\",\"source_metadata_sha256\":\"{\\\"eje\\\": \\\"4420a58e1e2dc7985843e11811dec4d72c963f256b3f66eda18bde5db1f66e3c\\\"}\",\"source_urls\":[\"https://www.rcsb.org/ligand/eje\"]} pmid:31285596 2019 https://www.thesgc.org/chemical-probes/bi-9321 pmid:31285596 2019 https://www.thesgc.org/chemical-probes/bi-9321 pmid:34469831 2022 https://pmc.ncbi.nlm.nih.gov/articles/pmc8882712/",
      "source_urls": [
        "https://pmc.ncbi.nlm.nih.gov/articles/PMC8882712/",
        "https://www.rcsb.org/ligand/EJE",
        "https://www.thesgc.org/chemical-probes/bi-9321"
      ],
      "verification_pending": false,
      "context_observations": [
        {
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          "assay_construct_start": 263,
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          "audit_decision": "retain_with_explicit_endpoint_and_identity",
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          "ccd_id": "EJE",
          "ccd_mapping_source": "Provenance/Literature/ligand_ccd_associations.json",
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          "compound_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
          "compound_name": "BI-9321",
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          "curation_version": "frozen-v1.2",
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          "evidence_location": "SGC probe developer report: Overview",
          "evidence_url": "https://www.thesgc.org/chemical-probes/bi-9321",
          "gene": "NSD3",
          "interpretation": "Primary developer website; original full article assay table was not retrieved.",
          "is_measured": true,
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          "method": "SPR",
          "molecular_entity_type": "small_molecule_preparation",
          "normalized_exact_uM": 0.166,
          "numeric_transcription_status": "matches_primary_report",
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          "organism": "Homo sapiens",
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          "pdb_id": "6G2O",
          "preparation_id": "PREP:BI-9321",
          "protein_id": "UP:Q9BZ95",
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          "reference_id": "PMID:31285596",
          "remaining_uncertainty": "Primary replicate conflict: Figure 3a states n=3 independent experiments, while Supplementary Table 7 states SPR n=4; both report SD. Indexed primary SPR Methods supply residues 263–398 and buffer, but the full PDF was unavailable. Exact assay temperature, mutations and per-dose contact times remain not inspected.",
          "replicates": "3 independent experiments (Figure 3a); 4 (Supplementary Table 7); unresolved source discrepancy",
          "role": "reported_chemical_probe",
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          "source_database": "Primary literature (frozen Atlas)",
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            "remaining_uncertainty": "Primary replicate conflict: Figure 3a states n=3 independent experiments, while Supplementary Table 7 states SPR n=4; both report SD. Indexed primary SPR Methods supply residues 263–398 and buffer, but the full PDF was unavailable. Exact assay temperature, mutations and per-dose contact times remain not inspected.",
            "replicates": "3 independent experiments (Figure 3a); 4 (Supplementary Table 7); unresolved source discrepancy",
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            "source_reported_uncertainty": "3.0",
            "source_reported_units": "nM",
            "source_reported_value": "166",
            "source_verification_scope": "Phase 3 actual publisher Supplementary Table 7 and official Figure 3/4 captions; selected indexed accepted-manuscript Methods, full PDF unavailable (403); developer identity page",
            "temperature_C": null,
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            "unit_conversion": null,
            "units": "nM",
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            "verification_level": "primary_developer_assay_report_verified"
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          "source_reported_uncertainty": "3.0",
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          "source_verification_scope": "Phase 3 actual publisher Supplementary Table 7 and official Figure 3/4 captions; selected indexed accepted-manuscript Methods, full PDF unavailable (403); developer identity page",
          "target_scope": "domain_specific",
          "temperature_C": null,
          "uncertainty": 3.0,
          "uncertainty_type": "SD",
          "uncertainty_uM": 0.003,
          "unit_conversion": null,
          "units": "nM",
          "value": 166.0,
          "value_operator": "=",
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          "verification_level": "primary_developer_assay_report_verified"
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          "assay_record_id": "PWWP:ASSAY:0009",
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          "audit_decision": "retain_with_explicit_endpoint_and_identity",
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          "curation_version": "frozen-v1.2",
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          "domain_id": "UP:Q9BZ95:PWWP1",
          "endpoint": "IC50",
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          "evidence_class": "cellular_interaction_response",
          "evidence_location": "SGC probe developer report: Overview",
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          "numeric_transcription_status": "matches_primary_report",
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          "organism": "Homo sapiens",
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          "protein_id": "UP:Q9BZ95",
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          "remaining_uncertainty": "The value 1.2 ± 0.06 uM, SD and n=3 were verified in the actual Supplementary Table 7. Full NanoBRET construct and conditions were not inspected. The 1.4 uM direct tracer-engagement endpoint is separate from this histone PPI assay.",
          "replicates": "3 independent replicates (Figure 4e; also Supplementary Table 7)",
          "role": "reported_chemical_probe",
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          "source_database": "Primary literature (frozen Atlas)",
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            "remaining_uncertainty": "The value 1.2 ± 0.06 uM, SD and n=3 were verified in the actual Supplementary Table 7. Full NanoBRET construct and conditions were not inspected. The 1.4 uM direct tracer-engagement endpoint is separate from this histone PPI assay.",
            "replicates": "3 independent replicates (Figure 4e; also Supplementary Table 7)",
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            "source_reported_uncertainty": "0.06",
            "source_reported_units": "µM",
            "source_reported_value": "1.2",
            "source_verification_scope": "Phase 3 actual publisher Supplementary Table 7 and official Figure 3/4 captions; selected indexed accepted-manuscript Methods, full PDF unavailable (403); developer identity page",
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          "source_verification_scope": "Phase 3 actual publisher Supplementary Table 7 and official Figure 3/4 captions; selected indexed accepted-manuscript Methods, full PDF unavailable (403); developer identity page",
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            "compound_syringe_concentration_uM": 200,
            "construct": "NSD3 247–402 in pNICBio2, E. coli expressed",
            "first_injection_removed": true,
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            "protein_concentration_uM": 20,
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          "evidence_class": "direct_binding_affinity",
          "evidence_location": "Results and Figure 2B-D; STAR Methods: ITC",
          "evidence_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC8882712/",
          "gene": "NSD3",
          "inclusion_rationale": "Primary source explicitly identifies this preparation, target context and observation.",
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          "preparation_id": "PREP:BI-9321",
          "protein_id": "UP:Q9BZ95",
          "publication_year": 2022,
          "reference_id": "PMID:34469831",
          "remaining_uncertainty": "Primary manuscript and Methods inspected; individual raw titration files not re-fitted. BI-9321 is a distinct study-specific ITC measurement, not the original 2019 SPR result.",
          "replicates": "2 independent measurements",
          "retrieval_date": "2026-10-26",
          "role": "experimentally_studied_ligand",
          "source_database": "Primary literature (Phase 5)",
          "source_id": "P5:S:XU2022",
          "source_measurement_key": "7a5643332d9884d1ebb0e010bd63f15485c8df4e1297f1a9aeeeea672f48b98f",
          "source_original": {
            "DMSO_percent": 1,
            "assay_construct_end": 402,
            "assay_construct_start": 247,
            "assay_context": "purified_domain",
            "assay_organism": "Homo sapiens",
            "assay_record_id": "PWWP5:ASSAY:0001",
            "assay_type": "ITC Kd",
            "assay_value_transferred_to_modeled_stereoisomers": false,
            "buffer": "50 mM Tris-HCl; 150 mM NaCl; 1% DMSO; 3% NMP",
            "ccd_id": null,
            "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
            "compound_name": "BI-9321",
            "conditions": {
              "buffer": "50 mM Tris-HCl; 150 mM NaCl; 1% DMSO; 3% NMP",
              "compound_syringe_concentration_uM": 200,
              "construct": "NSD3 247–402 in pNICBio2, E. coli expressed",
              "first_injection_removed": true,
              "model": "single binding site",
              "pH": 6.8,
              "protein_concentration_uM": 20,
              "temperature_C": 15
            },
            "domain": "PWWP1",
            "domain_id": "UP:Q9BZ95:PWWP1",
            "endpoint": "Kd",
            "evidence_class": "direct_binding_affinity",
            "evidence_location": "Results and Figure 2B-D; STAR Methods: ITC",
            "evidence_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC8882712/",
            "gene": "NSD3",
            "inclusion_rationale": "Primary source explicitly identifies this preparation, target context and observation.",
            "is_negative": false,
            "numeric_transcription_status": "source_preserved",
            "numeric_value_inferred_from_structure": false,
            "pH": 6.8,
            "pdb_id": null,
            "preparation_id": "PREP:BI-9321",
            "protein_id": "UP:Q9BZ95",
            "publication_year": 2022,
            "reference_id": "PMID:34469831",
            "remaining_uncertainty": "Primary manuscript and Methods inspected; individual raw titration files not re-fitted. BI-9321 is a distinct study-specific ITC measurement, not the original 2019 SPR result.",
            "replicates": "2 independent measurements",
            "retrieval_date": "2026-10-26",
            "role": "experimentally_studied_ligand",
            "source_id": "P5:S:XU2022",
            "source_reported_uncertainty": "0.04",
            "source_reported_units": "µM",
            "source_reported_value": "1.7",
            "source_verification_scope": "NCBI BioC primary full text; Results, ITC Methods and Figure 2/3 captions inspected",
            "temperature_C": 15,
            "uncertainty": 0.04,
            "uncertainty_type": "SD",
            "uncertainty_uM": 0.04,
            "units": "µM",
            "value": 1.7,
            "value_operator": "=",
            "value_uM": 1.7,
            "verification_level": "primary_source_verified",
            "version": "phase5.chemical_curation.1.1.0"
          },
          "source_reported_uncertainty": "0.04",
          "source_reported_units": "µM",
          "source_reported_value": "1.7",
          "source_verification_scope": "NCBI BioC primary full text; Results, ITC Methods and Figure 2/3 captions inspected",
          "target_scope": "domain_specific",
          "temperature_C": 15,
          "uncertainty": 0.04,
          "uncertainty_type": "SD",
          "uncertainty_uM": 0.04,
          "units": "µM",
          "value": 1.7,
          "value_operator": "=",
          "value_uM": 1.7,
          "verification_level": "primary_source_verified",
          "version": "phase5.chemical_curation.1.1.0"
        }
      ],
      "context_structures": [
        {
          "Pfam_contacts_5A": "[{\"auth_asym_id\": \"A\", \"auth_seq_id\": \"278\", \"component\": \"VAL\", \"entity_position\": 16, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7836, \"uniprot_position\": 278}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"281\", \"component\": \"TYR\", \"entity_position\": 19, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3221, \"uniprot_position\": 281}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"282\", \"component\": \"PRO\", \"entity_position\": 20, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.6453, \"uniprot_position\": 282}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"284\", \"component\": \"TRP\", \"entity_position\": 22, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3868, \"uniprot_position\": 284}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"312\", \"component\": \"PHE\", \"entity_position\": 50, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.5405, \"uniprot_position\": 312}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"314\", \"component\": \"SER\", \"entity_position\": 52, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.8197, \"uniprot_position\": 314}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"316\", \"component\": \"GLN\", \"entity_position\": 54, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.1952, \"uniprot_position\": 316}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"318\", \"component\": \"GLU\", \"entity_position\": 56, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.9728, \"uniprot_position\": 318}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"319\", \"component\": \"ARG\", \"entity_position\": 57, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.6711, \"uniprot_position\": 319}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"320\", \"component\": \"ALA\", \"entity_position\": 58, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.0668, \"uniprot_position\": 320}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"363\", \"component\": \"ARG\", \"entity_position\": 101, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.5282, \"uniprot_position\": 363}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"364\", \"component\": \"GLU\", \"entity_position\": 102, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.6582, \"uniprot_position\": 364}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"367\", \"component\": \"GLN\", \"entity_position\": 105, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.8252, \"uniprot_position\": 367}]",
          "biochemical_activity_inferred": 0,
          "ccd_id": "EJE",
          "chain_contacts_5A": "[{\"auth_asym_id\": \"A\", \"auth_seq_id\": \"278\", \"component\": \"VAL\", \"entity_position\": 16, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7836, \"uniprot_position\": 278}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"281\", \"component\": \"TYR\", \"entity_position\": 19, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3221, \"uniprot_position\": 281}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"282\", \"component\": \"PRO\", \"entity_position\": 20, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.6453, \"uniprot_position\": 282}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"284\", \"component\": \"TRP\", \"entity_position\": 22, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3868, \"uniprot_position\": 284}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"312\", \"component\": \"PHE\", \"entity_position\": 50, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.5405, \"uniprot_position\": 312}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"314\", \"component\": \"SER\", \"entity_position\": 52, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.8197, \"uniprot_position\": 314}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"316\", \"component\": \"GLN\", \"entity_position\": 54, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.1952, \"uniprot_position\": 316}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"318\", \"component\": \"GLU\", \"entity_position\": 56, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.9728, \"uniprot_position\": 318}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"319\", \"component\": \"ARG\", \"entity_position\": 57, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.6711, \"uniprot_position\": 319}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"320\", \"component\": \"ALA\", \"entity_position\": 58, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.0668, \"uniprot_position\": 320}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"363\", \"component\": \"ARG\", \"entity_position\": 101, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.5282, \"uniprot_position\": 363}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"364\", \"component\": \"GLU\", \"entity_position\": 102, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.6582, \"uniprot_position\": 364}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"367\", \"component\": \"GLN\", \"entity_position\": 105, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.8252, \"uniprot_position\": 367}]",
          "chain_id": "PDB:6G2O:CHAIN:A:UP:Q9BZ95",
          "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
          "contact_class": "native_annotation_core_contact",
          "contact_distance_rank": 1,
          "core_contacts_5A": "[{\"auth_asym_id\": \"A\", \"auth_seq_id\": \"278\", \"component\": \"VAL\", \"entity_position\": 16, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7836, \"uniprot_position\": 278}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"281\", \"component\": \"TYR\", \"entity_position\": 19, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3221, \"uniprot_position\": 281}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"282\", \"component\": \"PRO\", \"entity_position\": 20, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.6453, \"uniprot_position\": 282}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"284\", \"component\": \"TRP\", \"entity_position\": 22, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3868, \"uniprot_position\": 284}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"312\", \"component\": \"PHE\", \"entity_position\": 50, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.5405, \"uniprot_position\": 312}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"314\", \"component\": \"SER\", \"entity_position\": 52, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.8197, \"uniprot_position\": 314}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"316\", \"component\": \"GLN\", \"entity_position\": 54, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.1952, \"uniprot_position\": 316}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"318\", \"component\": \"GLU\", \"entity_position\": 56, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.9728, \"uniprot_position\": 318}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"319\", \"component\": \"ARG\", \"entity_position\": 57, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.6711, \"uniprot_position\": 319}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"320\", \"component\": \"ALA\", \"entity_position\": 58, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.0668, \"uniprot_position\": 320}]",
          "covalent_connection_ids": "[]",
          "cutoff_angstrom": 5.0,
          "domain_id": "UP:Q9BZ95:PWWP1",
          "exact_pwwp_contact": true,
          "gene": "NSD3",
          "geometry_scope": "first deposited model; asymmetric unit; heavy atoms with occupancy >0; alternate locations retained; no symmetry expansion",
          "instance": {
            "alternate_locations": "[]",
            "auth_asym_ids": "[\"A\"]",
            "auth_seq_id": "401",
            "ccd_id": "EJE",
            "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
            "component_context": "nonpolymer_component",
            "contacted_polymer_partners": "[{\"description\": \"Histone-lysine N-methyltransferase NSD3\", \"entity_id\": \"1\", \"is_PWWP_family_protein\": true, \"label_asym_id\": \"A\", \"sequence_length\": 136, \"uniprot_ids\": [\"Q9BZ95\"]}]",
            "covalent_connection_ids": "[]",
            "heavy_atom_row_count": 27,
            "ideal_CCD_SDF_is_source_pose": 0,
            "label_asym_id": "B",
            "label_seq_id": null,
            "ligand_instance_id": "PDB:6G2O:LIG:B:EJE:401:.",
            "nearest_polypeptide_distance_angstrom": 2.8197,
            "nearest_polypeptide_label_asym_id": "A",
            "occupancy_max": 1.0,
            "occupancy_min": 1.0,
            "pdb_id": "6G2O",
            "polypeptide_contact_residues_5A": "[{\"auth_asym_id\": \"A\", \"auth_seq_id\": \"278\", \"component\": \"VAL\", \"entity_position\": 16, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7836, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"281\", \"component\": \"TYR\", \"entity_position\": 19, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3221, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"282\", \"component\": \"PRO\", \"entity_position\": 20, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.6453, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"284\", \"component\": \"TRP\", \"entity_position\": 22, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3868, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"312\", \"component\": \"PHE\", \"entity_position\": 50, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.5405, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"314\", \"component\": \"SER\", \"entity_position\": 52, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.8197, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"316\", \"component\": \"GLN\", \"entity_position\": 54, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.1952, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"318\", \"component\": \"GLU\", \"entity_position\": 56, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.9728, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"319\", \"component\": \"ARG\", \"entity_position\": 57, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.6711, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"320\", \"component\": \"ALA\", \"entity_position\": 58, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.0668, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"363\", \"component\": \"ARG\", \"entity_position\": 101, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.5282, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"364\", \"component\": \"GLU\", \"entity_position\": 102, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.6582, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"367\", \"component\": \"GLN\", \"entity_position\": 105, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.8252, \"uniprot_position\": null}]",
            "pose_kind": "deposited_source_coordinates",
            "reference_model": "1",
            "source_coordinate_file": "Structures/NSD3__HUMAN__Q9BZ95/Co-Crystals/6G2O/original.cif",
            "source_coordinate_sha256": "74d2d63c67c68d75cd98a65a67771b43791e1d61b52c6fd985805899f9c8ecfa",
            "unique_heavy_atom_names": 27
          },
          "ligand_instance_id": "PDB:6G2O:LIG:B:EJE:401:.",
          "ligand_label_asym_id": "B",
          "minimum_Pfam_distance_angstrom": 2.8197,
          "minimum_chain_distance_angstrom": 2.8197,
          "minimum_core_distance_angstrom": 2.8197,
          "multiple_contacting_mapped_chains": 0,
          "pdb_id": "6G2O",
          "protein_id": "UP:Q9BZ95",
          "protein_label_asym_id": "A",
          "rank_interpretation": "Distance rank among mapped chains only; crystal packing and biological site assignment require separate review.",
          "role": "experimentally studied ligand",
          "role_category": "functional",
          "site_id": "PDB:6G2O:LIG:B:EJE:401:.:SITE:UP:Q9BZ95:PWWP1:A",
          "source_coordinate_sha256": "74d2d63c67c68d75cd98a65a67771b43791e1d61b52c6fd985805899f9c8ecfa"
        }
      ],
      "context_assay_count": 3,
      "context_measured_count": 3,
      "context_bound_count": 1,
      "context_pdb_count": 1,
      "context_negative_count": 0,
      "context_is_probe": true,
      "context_bioactivity_only": false,
      "context_kind": "Measured + bound structure",
      "science": {
        "studied_compound": true,
        "measured_count": 3,
        "structural_research_ligand": true,
        "research_pdb_count": 1,
        "other_component": false,
        "component_site_count": 0,
        "verification_queue": true,
        "positive_direct_binder": true,
        "reported_probe": true,
        "reported_control": false,
        "cellular_activity": true,
        "protein_degradation": false,
        "bioactivity_only": false,
        "research_site_count": 1,
        "unknown_site_count": 0,
        "annotation_roles": [
          "studied",
          "structural",
          "unresolved"
        ]
      },
      "science_label": "Studied + deposited research ligand",
      "science_profile": {
        "annotation_roles": [
          "studied",
          "structural",
          "unresolved"
        ],
        "cellular_activity": true,
        "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
        "compound_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
        "entity_kind": "chemical_identity",
        "identity_resolved": true,
        "measured_observation_count": 3,
        "name": "BI-9321",
        "other_pdb_component": false,
        "other_site_count": 0,
        "positive_direct_binder": true,
        "primary_view": "studied",
        "protein_degradation": false,
        "reported_control": false,
        "reported_probe": true,
        "rule": "Independent source observations + per-site coordinate role, not universal pharmacology",
        "source_observation_ids": [
          "PWWP5:ASSAY:0001",
          "PWWP:ASSAY:0008",
          "PWWP:ASSAY:0009"
        ],
        "source_site_ids": [
          "PDB:6G2O:LIG:B:EJE:401:.:SITE:UP:Q9BZ95:PWWP1:A"
        ],
        "structural_research_ligand": true,
        "structural_research_site_count": 1,
        "studied_compound": true,
        "total_observation_count": 3,
        "uncertain_site_count": 0,
        "uncertainty": "Classification is evidence- and experiment-scoped; missing assays do not prove nonbinding.",
        "verification_queue": true,
        "verification_status": "source_scoped_mixed"
      },
      "science_site_roles": {
        "PDB:6G2O:LIG:B:EJE:401:.:SITE:UP:Q9BZ95:PWWP1:A": {
          "ccd_url": "https://www.rcsb.org/ligand/EJE",
          "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
          "compound_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
          "contact_class": "native_annotation_core_contact",
          "coordinate_sha256": "74d2d63c67c68d75cd98a65a67771b43791e1d61b52c6fd985805899f9c8ecfa",
          "domain_id": "UP:Q9BZ95:PWWP1",
          "exact_pwwp_contact": true,
          "ligand_instance_id": "PDB:6G2O:LIG:B:EJE:401:.",
          "observed_other_component": false,
          "pdb_id": "6G2O",
          "protein_id": "UP:Q9BZ95",
          "role_code": "reported_studied_structural_ligand",
          "role_group": "research_ligand",
          "rule": "Phase5 exact deposited site role, measured heavy-atom contacts and native-domain scope",
          "site_id": "PDB:6G2O:LIG:B:EJE:401:.:SITE:UP:Q9BZ95:PWWP1:A",
          "source_role": "experimentally studied ligand",
          "source_url": "https://www.rcsb.org/structure/6G2O",
          "structural_research_ligand": true,
          "uncertainty": "Role is source-annotated; deposited proximity alone does not establish solution binding or biological activity.",
          "verification_status": "phase5_derived_deposited_geometry"
        }
      },
      "science_assay_roles": {
        "PWWP:ASSAY:0008": {
          "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
          "compound_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
          "domain_id": "UP:Q9BZ95:PWWP1",
          "endpoint": "Kd",
          "evidence_type": "direct_binding",
          "explicitly_negative": false,
          "measured": true,
          "method": "SPR",
          "molecular_entity_type": "small_molecule_preparation",
          "observation_id": "PWWP:ASSAY:0008",
          "operator": "=",
          "positive_direct_binder": true,
          "preparation_id": "PREP:BI-9321",
          "protein_id": "UP:Q9BZ95",
          "remaining_uncertainty": "Primary replicate conflict: Figure 3a states n=3 independent experiments, while Supplementary Table 7 states SPR n=4; both report SD. Indexed primary SPR Methods supply residues 263–398 and buffer, but the full PDF was unavailable. Exact assay temperature, mutations and per-dose contact times remain not inspected.",
          "reported_cellular": false,
          "reported_control": false,
          "reported_probe": true,
          "rule": "Phase5 source-curated evidence_class, material, target_scope, source role; no inferred affinities",
          "source_id": "S03",
          "source_location": "SGC probe developer report: Overview",
          "source_role": "reported_chemical_probe",
          "source_url": "https://www.thesgc.org/chemical-probes/bi-9321",
          "source_verification_scope": "Phase 3 actual publisher Supplementary Table 7 and official Figure 3/4 captions; selected indexed accepted-manuscript Methods, full PDF unavailable (403); developer identity page",
          "studied_compound": true,
          "target_scope": "domain_specific",
          "target_variant": null,
          "units": "nM",
          "value": 166.0,
          "verification_status": "primary_developer_assay_report_verified"
        },
        "PWWP:ASSAY:0009": {
          "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
          "compound_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
          "domain_id": "UP:Q9BZ95:PWWP1",
          "endpoint": "IC50",
          "evidence_type": "cellular_activity",
          "explicitly_negative": false,
          "measured": true,
          "method": "NanoBRET",
          "molecular_entity_type": "small_molecule_preparation",
          "observation_id": "PWWP:ASSAY:0009",
          "operator": "=",
          "positive_direct_binder": false,
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          "reference_id": "PMID:34469831",
          "remaining_uncertainty": "Primary manuscript and Methods inspected; individual raw titration files not re-fitted. BI-9321 is a distinct study-specific ITC measurement, not the original 2019 SPR result.",
          "replicates": "2 independent measurements",
          "retrieval_date": "2026-10-26",
          "role": "experimentally_studied_ligand",
          "source_database": "Primary literature (Phase 5)",
          "source_id": "P5:S:XU2022",
          "source_measurement_key": "7a5643332d9884d1ebb0e010bd63f15485c8df4e1297f1a9aeeeea672f48b98f",
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            "assay_construct_start": 247,
            "assay_context": "purified_domain",
            "assay_organism": "Homo sapiens",
            "assay_record_id": "PWWP5:ASSAY:0001",
            "assay_type": "ITC Kd",
            "assay_value_transferred_to_modeled_stereoisomers": false,
            "buffer": "50 mM Tris-HCl; 150 mM NaCl; 1% DMSO; 3% NMP",
            "ccd_id": null,
            "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N",
            "compound_name": "BI-9321",
            "conditions": {
              "buffer": "50 mM Tris-HCl; 150 mM NaCl; 1% DMSO; 3% NMP",
              "compound_syringe_concentration_uM": 200,
              "construct": "NSD3 247–402 in pNICBio2, E. coli expressed",
              "first_injection_removed": true,
              "model": "single binding site",
              "pH": 6.8,
              "protein_concentration_uM": 20,
              "temperature_C": 15
            },
            "domain": "PWWP1",
            "domain_id": "UP:Q9BZ95:PWWP1",
            "endpoint": "Kd",
            "evidence_class": "direct_binding_affinity",
            "evidence_location": "Results and Figure 2B-D; STAR Methods: ITC",
            "evidence_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC8882712/",
            "gene": "NSD3",
            "inclusion_rationale": "Primary source explicitly identifies this preparation, target context and observation.",
            "is_negative": false,
            "numeric_transcription_status": "source_preserved",
            "numeric_value_inferred_from_structure": false,
            "pH": 6.8,
            "pdb_id": null,
            "preparation_id": "PREP:BI-9321",
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            "source_reported_uncertainty": "0.04",
            "source_reported_units": "µM",
            "source_reported_value": "1.7",
            "source_verification_scope": "NCBI BioC primary full text; Results, ITC Methods and Figure 2/3 captions inspected",
            "temperature_C": 15,
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            "uncertainty_type": "SD",
            "uncertainty_uM": 0.04,
            "units": "µM",
            "value": 1.7,
            "value_operator": "=",
            "value_uM": 1.7,
            "verification_level": "primary_source_verified",
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          },
          "source_reported_uncertainty": "0.04",
          "source_reported_units": "µM",
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          "source_verification_scope": "NCBI BioC primary full text; Results, ITC Methods and Figure 2/3 captions inspected",
          "target_scope": "domain_specific",
          "temperature_C": 15,
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          "uncertainty_type": "SD",
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          "units": "µM",
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        }
      ],
      "matched_assay_count": 3
    },
    {
      "aliases": [
        "2-[(~{E})-2-thiophen-2-ylethenyl]benzoic acid"
      ],
      "assay_count": 0,
      "associated_pdb_ids": [
        "6G24"
      ],
      "bound_structure_count": 1,
      "category": "Structure-supported identity",
      "chemical_id": "INCHIKEY:ISSJZCAENPGUEW-BQYQJAHWSA-N",
      "classifications": [],
      "compound_id": "INCHIKEY:ISSJZCAENPGUEW-BQYQJAHWSA-N",
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        "calculated_HBA": 2,
        "calculated_HBD": 1,
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        "calculated_formula": "C13H10O2S",
        "calculated_logP": 3.6167,
        "calculated_molecular_weight": 230.288,
        "computed_inchikey": "ISSJZCAENPGUEW-BQYQJAHWSA-N",
        "descriptor_scope": "RDKit calculation for the source identity; not an experimental measurement",
        "files": {
          "dark": "2ea4c42c778a41e7a970-dark.svg",
          "light": "2ea4c42c778a41e7a970-light.svg"
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        "rdkit_version": "2025.09.3",
        "status": "verified_smiles_full_inchikey_match"
      },
      "development_status": "Not independently curated",
      "domain_ids": [
        "UP:Q9BZ95:PWWP1"
      ],
      "entity_kind": "chemical_identity",
      "genes": [
        "NSD3"
      ],
      "has_bioactivity_only": false,
      "has_source_conflict": false,
      "identity": {
        "aliases": [
          "2-[(~{E})-2-thiophen-2-ylethenyl]benzoic acid"
        ],
        "ccd_ids": [
          "EH2"
        ],
        "ccd_names": "[\"2-[(~{E})-2-thiophen-2-ylethenyl]benzoic acid\"]",
        "ccd_types": "[\"non-polymer\"]",
        "chemical_id": "INCHIKEY:ISSJZCAENPGUEW-BQYQJAHWSA-N",
        "connectivity_block": "ISSJZCAENPGUEW",
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        "curation_version": "frozen-v1.2",
        "external_identifiers": {},
        "formal_charge_by_ccd": "{\"EH2\": 0}",
        "formulae": "[\"C13 H10 O2 S\"]",
        "geometry_note": "CCD ideal SDF is a reference chemical geometry, not a deposited bound pose.",
        "identity_status": "complete_deposited_InChIKey",
        "inchikey": "ISSJZCAENPGUEW-BQYQJAHWSA-N",
        "inventory_origin": "v1_CCD_inventory",
        "isomeric_smiles": "c1ccc(c(c1)/C=C/c2cccs2)C(=O)O",
        "primary_name": "2-[(~{E})-2-thiophen-2-ylethenyl]benzoic acid",
        "retrieval_date": "2026-10-24",
        "smiles_stereo_by_ccd": "{\"EH2\": \"c1ccc(c(c1)/C=C/c2cccs2)C(=O)O\"}",
        "source_metadata_sha256": "{\"EH2\": \"38bdef0696d45f9d2a854f5ff0a7695f73d9d880511426153f7667a60143aeba\"}",
        "source_urls": [
          "https://www.rcsb.org/ligand/EH2"
        ]
      },
      "identity_note": "complete_deposited_InChIKey",
      "identity_resolved": true,
      "is_control": false,
      "is_probe": false,
      "measured_observation_count": 0,
      "name": "2-[(~{E})-2-thiophen-2-ylethenyl]benzoic acid",
      "negative_count": 0,
      "observation_ids": [],
      "pdb_structure_count": 1,
      "preparation_count": 0,
      "preparation_ids": [],
      "protein_ids": [
        "UP:Q9BZ95"
      ],
      "relationships": [],
      "relevant": true,
      "search_text": "2-[(~{e})-2-thiophen-2-ylethenyl]benzoic acid inchikey:issjzcaenpguew-bqyqjahwsa-n 2-[(~{e})-2-thiophen-2-ylethenyl]benzoic acid nsd3 up:q9bz95:pwwp1 6g24 {\"aliases\":[\"2-[(~{e})-2-thiophen-2-ylethenyl]benzoic acid\"],\"ccd_ids\":[\"eh2\"],\"ccd_names\":\"[\\\"2-[(~{e})-2-thiophen-2-ylethenyl]benzoic acid\\\"]\",\"ccd_types\":\"[\\\"non-polymer\\\"]\",\"chemical_id\":\"inchikey:issjzcaenpguew-bqyqjahwsa-n\",\"connectivity_block\":\"issjzcaenpguew\",\"curated_source_sha256\":null,\"curation_version\":\"frozen-v1.2\",\"external_identifiers\":{},\"formal_charge_by_ccd\":\"{\\\"eh2\\\": 0}\",\"formulae\":\"[\\\"c13 h10 o2 s\\\"]\",\"geometry_note\":\"ccd ideal sdf is a reference chemical geometry, not a deposited bound pose.\",\"identity_status\":\"complete_deposited_inchikey\",\"inchikey\":\"issjzcaenpguew-bqyqjahwsa-n\",\"inventory_origin\":\"v1_ccd_inventory\",\"isomeric_smiles\":\"c1ccc(c(c1)/c=c/c2cccs2)c(=o)o\",\"primary_name\":\"2-[(~{e})-2-thiophen-2-ylethenyl]benzoic acid\",\"retrieval_date\":\"2026-10-24\",\"smiles_stereo_by_ccd\":\"{\\\"eh2\\\": \\\"c1ccc(c(c1)/c=c/c2cccs2)c(=o)o\\\"}\",\"source_metadata_sha256\":\"{\\\"eh2\\\": \\\"38bdef0696d45f9d2a854f5ff0a7695f73d9d880511426153f7667a60143aeba\\\"}\",\"source_urls\":[\"https://www.rcsb.org/ligand/eh2\"]}",
      "source_urls": [
        "https://www.rcsb.org/ligand/EH2"
      ],
      "verification_pending": false,
      "context_observations": [],
      "context_structures": [
        {
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          "biochemical_activity_inferred": 0,
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          "contact_distance_rank": 1,
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          "covalent_connection_ids": "[]",
          "cutoff_angstrom": 5.0,
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          "exact_pwwp_contact": true,
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            "alternate_locations": "[]",
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            "chemical_id": "INCHIKEY:ISSJZCAENPGUEW-BQYQJAHWSA-N",
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            "covalent_connection_ids": "[]",
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            "ideal_CCD_SDF_is_source_pose": 0,
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            "label_seq_id": null,
            "ligand_instance_id": "PDB:6G24:LIG:B:EH2:401:.",
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            "occupancy_min": 1.0,
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          "minimum_chain_distance_angstrom": 3.3228,
          "minimum_core_distance_angstrom": 3.4759,
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          "rank_interpretation": "Distance rank among mapped chains only; crystal packing and biological site assignment require separate review.",
          "role": "experimentally studied ligand",
          "role_category": "functional",
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      "context_assay_count": 0,
      "context_measured_count": 0,
      "context_bound_count": 1,
      "context_pdb_count": 1,
      "context_negative_count": 0,
      "context_is_probe": false,
      "context_bioactivity_only": false,
      "context_kind": "PWWP-proximal structure",
      "science": {
        "studied_compound": false,
        "measured_count": 0,
        "structural_research_ligand": true,
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        "other_component": false,
        "component_site_count": 0,
        "verification_queue": false,
        "positive_direct_binder": false,
        "reported_probe": false,
        "reported_control": false,
        "cellular_activity": false,
        "protein_degradation": false,
        "bioactivity_only": false,
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        "unknown_site_count": 0,
        "annotation_roles": [
          "structural"
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      },
      "science_label": "Deposited research ligand · no curated assay",
      "science_profile": {
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        "cellular_activity": false,
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        "identity_resolved": true,
        "measured_observation_count": 0,
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        "other_pdb_component": false,
        "other_site_count": 0,
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        "primary_view": "structural",
        "protein_degradation": false,
        "reported_control": false,
        "reported_probe": false,
        "rule": "Independent source observations + per-site coordinate role, not universal pharmacology",
        "source_observation_ids": [],
        "source_site_ids": [
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        "structural_research_ligand": true,
        "structural_research_site_count": 1,
        "studied_compound": false,
        "total_observation_count": 0,
        "uncertain_site_count": 0,
        "uncertainty": "Classification is evidence- and experiment-scoped; missing assays do not prove nonbinding.",
        "verification_queue": false,
        "verification_status": "source_scoped_mixed"
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      "science_site_roles": {
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          "domain_id": "UP:Q9BZ95:PWWP1",
          "exact_pwwp_contact": true,
          "ligand_instance_id": "PDB:6G24:LIG:B:EH2:401:.",
          "observed_other_component": false,
          "pdb_id": "6G24",
          "protein_id": "UP:Q9BZ95",
          "role_code": "reported_studied_structural_ligand",
          "role_group": "research_ligand",
          "rule": "Phase5 exact deposited site role, measured heavy-atom contacts and native-domain scope",
          "site_id": "PDB:6G24:LIG:B:EH2:401:.:SITE:UP:Q9BZ95:PWWP1:A",
          "source_role": "experimentally studied ligand",
          "source_url": "https://www.rcsb.org/structure/6G24",
          "structural_research_ligand": true,
          "uncertainty": "Role is source-annotated; deposited proximity alone does not establish solution binding or biological activity.",
          "verification_status": "phase5_derived_deposited_geometry"
        }
      },
      "science_assay_roles": {},
      "example": null,
      "matched_observations": [],
      "matched_assay_count": 0
    },
    {
      "aliases": [
        "3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole"
      ],
      "assay_count": 0,
      "associated_pdb_ids": [
        "6G2C"
      ],
      "bound_structure_count": 1,
      "category": "Structure-supported identity",
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      "classifications": [],
      "compound_id": "INCHIKEY:XPQAEPLMWBAUIW-UHFFFAOYSA-N",
      "curation_version": "phase5-1.0.0",
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        "calculated_HBA": 5,
        "calculated_HBD": 0,
        "calculated_TPSA": 56.74,
        "calculated_formula": "C14H14N4O",
        "calculated_logP": 2.7539,
        "calculated_molecular_weight": 254.293,
        "computed_inchikey": "XPQAEPLMWBAUIW-UHFFFAOYSA-N",
        "descriptor_scope": "RDKit calculation for the source identity; not an experimental measurement",
        "files": {
          "dark": "c32c1f85d6e1f7abaaa7-dark.svg",
          "light": "c32c1f85d6e1f7abaaa7-light.svg"
        },
        "rdkit_version": "2025.09.3",
        "status": "verified_smiles_full_inchikey_match"
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      "development_status": "Not independently curated",
      "domain_ids": [
        "UP:Q9BZ95:PWWP1"
      ],
      "entity_kind": "chemical_identity",
      "genes": [
        "NSD3"
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      "has_bioactivity_only": false,
      "has_source_conflict": false,
      "identity": {
        "aliases": [
          "3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole"
        ],
        "ccd_ids": [
          "EHT"
        ],
        "ccd_names": "[\"3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole\"]",
        "ccd_types": "[\"non-polymer\"]",
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        "curated_source_sha256": null,
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        "formulae": "[\"C14 H14 N4 O\"]",
        "geometry_note": "CCD ideal SDF is a reference chemical geometry, not a deposited bound pose.",
        "identity_status": "complete_deposited_InChIKey",
        "inchikey": "XPQAEPLMWBAUIW-UHFFFAOYSA-N",
        "inventory_origin": "v1_CCD_inventory",
        "isomeric_smiles": "Cc1c(c(on1)C)c2c(n(cn2)C)c3ccncc3",
        "primary_name": "3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole",
        "retrieval_date": "2026-10-24",
        "smiles_stereo_by_ccd": "{\"EHT\": \"Cc1c(c(on1)C)c2c(n(cn2)C)c3ccncc3\"}",
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      },
      "identity_note": "complete_deposited_InChIKey",
      "identity_resolved": true,
      "is_control": false,
      "is_probe": false,
      "measured_observation_count": 0,
      "name": "3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole",
      "negative_count": 0,
      "observation_ids": [],
      "pdb_structure_count": 1,
      "preparation_count": 0,
      "preparation_ids": [],
      "protein_ids": [
        "UP:Q9BZ95"
      ],
      "relationships": [],
      "relevant": true,
      "search_text": "3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole inchikey:xpqaeplmwbauiw-uhfffaoysa-n 3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole nsd3 up:q9bz95:pwwp1 6g2c {\"aliases\":[\"3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole\"],\"ccd_ids\":[\"eht\"],\"ccd_names\":\"[\\\"3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole\\\"]\",\"ccd_types\":\"[\\\"non-polymer\\\"]\",\"chemical_id\":\"inchikey:xpqaeplmwbauiw-uhfffaoysa-n\",\"connectivity_block\":\"xpqaeplmwbauiw\",\"curated_source_sha256\":null,\"curation_version\":\"frozen-v1.2\",\"external_identifiers\":{},\"formal_charge_by_ccd\":\"{\\\"eht\\\": 0}\",\"formulae\":\"[\\\"c14 h14 n4 o\\\"]\",\"geometry_note\":\"ccd ideal sdf is a reference chemical geometry, not a deposited bound pose.\",\"identity_status\":\"complete_deposited_inchikey\",\"inchikey\":\"xpqaeplmwbauiw-uhfffaoysa-n\",\"inventory_origin\":\"v1_ccd_inventory\",\"isomeric_smiles\":\"cc1c(c(on1)c)c2c(n(cn2)c)c3ccncc3\",\"primary_name\":\"3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole\",\"retrieval_date\":\"2026-10-24\",\"smiles_stereo_by_ccd\":\"{\\\"eht\\\": \\\"cc1c(c(on1)c)c2c(n(cn2)c)c3ccncc3\\\"}\",\"source_metadata_sha256\":\"{\\\"eht\\\": \\\"f949b86f45680cf4634925f7c011476dcb81ed5cba55c004e2d38b2abe2cdc59\\\"}\",\"source_urls\":[\"https://www.rcsb.org/ligand/eht\"]}",
      "source_urls": [
        "https://www.rcsb.org/ligand/EHT"
      ],
      "verification_pending": false,
      "context_observations": [],
      "context_structures": [
        {
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          "biochemical_activity_inferred": 0,
          "ccd_id": "EHT",
          "chain_contacts_5A": "[{\"auth_asym_id\": \"A\", \"auth_seq_id\": \"278\", \"component\": \"VAL\", \"entity_position\": 16, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7442, \"uniprot_position\": 278}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"281\", \"component\": \"TYR\", \"entity_position\": 19, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.2779, \"uniprot_position\": 281}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"282\", \"component\": \"PRO\", \"entity_position\": 20, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.761, \"uniprot_position\": 282}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"284\", \"component\": \"TRP\", \"entity_position\": 22, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.4669, \"uniprot_position\": 284}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"312\", \"component\": \"PHE\", \"entity_position\": 50, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.5201, \"uniprot_position\": 312}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"314\", \"component\": \"SER\", \"entity_position\": 52, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.7819, \"uniprot_position\": 314}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"316\", \"component\": \"GLN\", \"entity_position\": 54, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.1769, \"uniprot_position\": 316}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"318\", \"component\": \"GLU\", \"entity_position\": 56, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3451, \"uniprot_position\": 318}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"319\", \"component\": \"ARG\", \"entity_position\": 57, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7061, \"uniprot_position\": 319}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"320\", \"component\": \"ALA\", \"entity_position\": 58, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.0677, \"uniprot_position\": 320}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"367\", \"component\": \"GLN\", \"entity_position\": 105, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.4748, \"uniprot_position\": 367}]",
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          "contact_class": "native_annotation_core_contact",
          "contact_distance_rank": 1,
          "core_contacts_5A": "[{\"auth_asym_id\": \"A\", \"auth_seq_id\": \"278\", \"component\": \"VAL\", \"entity_position\": 16, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7442, \"uniprot_position\": 278}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"281\", \"component\": \"TYR\", \"entity_position\": 19, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.2779, \"uniprot_position\": 281}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"282\", \"component\": \"PRO\", \"entity_position\": 20, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.761, \"uniprot_position\": 282}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"284\", \"component\": \"TRP\", \"entity_position\": 22, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.4669, \"uniprot_position\": 284}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"312\", \"component\": \"PHE\", \"entity_position\": 50, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.5201, \"uniprot_position\": 312}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"314\", \"component\": \"SER\", \"entity_position\": 52, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.7819, \"uniprot_position\": 314}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"316\", \"component\": \"GLN\", \"entity_position\": 54, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.1769, \"uniprot_position\": 316}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"318\", \"component\": \"GLU\", \"entity_position\": 56, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3451, \"uniprot_position\": 318}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"319\", \"component\": \"ARG\", \"entity_position\": 57, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7061, \"uniprot_position\": 319}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"320\", \"component\": \"ALA\", \"entity_position\": 58, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.0677, \"uniprot_position\": 320}]",
          "covalent_connection_ids": "[]",
          "cutoff_angstrom": 5.0,
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            "covalent_connection_ids": "[]",
            "heavy_atom_row_count": 19,
            "ideal_CCD_SDF_is_source_pose": 0,
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            "label_seq_id": null,
            "ligand_instance_id": "PDB:6G2C:LIG:B:EHT:401:.",
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            "occupancy_min": 1.0,
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            "pose_kind": "deposited_source_coordinates",
            "reference_model": "1",
            "source_coordinate_file": "Structures/NSD3__HUMAN__Q9BZ95/Co-Crystals/6G2C/original.cif",
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          "ligand_instance_id": "PDB:6G2C:LIG:B:EHT:401:.",
          "ligand_label_asym_id": "B",
          "minimum_Pfam_distance_angstrom": 2.7819,
          "minimum_chain_distance_angstrom": 2.7819,
          "minimum_core_distance_angstrom": 2.7819,
          "multiple_contacting_mapped_chains": 0,
          "pdb_id": "6G2C",
          "protein_id": "UP:Q9BZ95",
          "protein_label_asym_id": "A",
          "rank_interpretation": "Distance rank among mapped chains only; crystal packing and biological site assignment require separate review.",
          "role": "experimentally studied ligand",
          "role_category": "functional",
          "site_id": "PDB:6G2C:LIG:B:EHT:401:.:SITE:UP:Q9BZ95:PWWP1:A",
          "source_coordinate_sha256": "b464ffe66603901ce447687abe9980f91c18457311fc7c9f4f1d189df399d320"
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      "context_assay_count": 0,
      "context_measured_count": 0,
      "context_bound_count": 1,
      "context_pdb_count": 1,
      "context_negative_count": 0,
      "context_is_probe": false,
      "context_bioactivity_only": false,
      "context_kind": "PWWP-proximal structure",
      "science": {
        "studied_compound": false,
        "measured_count": 0,
        "structural_research_ligand": true,
        "research_pdb_count": 1,
        "other_component": false,
        "component_site_count": 0,
        "verification_queue": false,
        "positive_direct_binder": false,
        "reported_probe": false,
        "reported_control": false,
        "cellular_activity": false,
        "protein_degradation": false,
        "bioactivity_only": false,
        "research_site_count": 1,
        "unknown_site_count": 0,
        "annotation_roles": [
          "structural"
        ]
      },
      "science_label": "Deposited research ligand · no curated assay",
      "science_profile": {
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          "structural"
        ],
        "cellular_activity": false,
        "chemical_id": "INCHIKEY:XPQAEPLMWBAUIW-UHFFFAOYSA-N",
        "compound_id": "INCHIKEY:XPQAEPLMWBAUIW-UHFFFAOYSA-N",
        "entity_kind": "chemical_identity",
        "identity_resolved": true,
        "measured_observation_count": 0,
        "name": "3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)-1,2-oxazole",
        "other_pdb_component": false,
        "other_site_count": 0,
        "positive_direct_binder": false,
        "primary_view": "structural",
        "protein_degradation": false,
        "reported_control": false,
        "reported_probe": false,
        "rule": "Independent source observations + per-site coordinate role, not universal pharmacology",
        "source_observation_ids": [],
        "source_site_ids": [
          "PDB:6G2C:LIG:B:EHT:401:.:SITE:UP:Q9BZ95:PWWP1:A"
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        "structural_research_ligand": true,
        "structural_research_site_count": 1,
        "studied_compound": false,
        "total_observation_count": 0,
        "uncertain_site_count": 0,
        "uncertainty": "Classification is evidence- and experiment-scoped; missing assays do not prove nonbinding.",
        "verification_queue": false,
        "verification_status": "source_scoped_mixed"
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      "science_site_roles": {
        "PDB:6G2C:LIG:B:EHT:401:.:SITE:UP:Q9BZ95:PWWP1:A": {
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          "compound_id": "INCHIKEY:XPQAEPLMWBAUIW-UHFFFAOYSA-N",
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          "observed_other_component": false,
          "pdb_id": "6G2C",
          "protein_id": "UP:Q9BZ95",
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          "structural_research_ligand": true,
          "uncertainty": "Role is source-annotated; deposited proximity alone does not establish solution binding or biological activity.",
          "verification_status": "phase5_derived_deposited_geometry"
        }
      },
      "science_assay_roles": {},
      "example": null,
      "matched_observations": [],
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    },
    {
      "aliases": [
        "3,5-dimethyl-4-(4-pyridin-4-yl-1~{H}-pyrazol-3-yl)-1,2-oxazole"
      ],
      "assay_count": 0,
      "associated_pdb_ids": [
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      "bound_structure_count": 1,
      "category": "Structure-supported identity",
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        "calculated_molecular_weight": 240.266,
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        "descriptor_scope": "RDKit calculation for the source identity; not an experimental measurement",
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      "preparation_ids": [],
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        "UP:Q9BZ95"
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      "relationships": [],
      "relevant": true,
      "search_text": "3,5-dimethyl-4-(4-pyridin-4-yl-1~{h}-pyrazol-3-yl)-1,2-oxazole inchikey:jytphnopqgailg-uhfffaoysa-n 3,5-dimethyl-4-(4-pyridin-4-yl-1~{h}-pyrazol-3-yl)-1,2-oxazole nsd3 up:q9bz95:pwwp1 6g25 {\"aliases\":[\"3,5-dimethyl-4-(4-pyridin-4-yl-1~{h}-pyrazol-3-yl)-1,2-oxazole\"],\"ccd_ids\":[\"ehq\"],\"ccd_names\":\"[\\\"3,5-dimethyl-4-(4-pyridin-4-yl-1~{h}-pyrazol-3-yl)-1,2-oxazole\\\"]\",\"ccd_types\":\"[\\\"non-polymer\\\"]\",\"chemical_id\":\"inchikey:jytphnopqgailg-uhfffaoysa-n\",\"connectivity_block\":\"jytphnopqgailg\",\"curated_source_sha256\":null,\"curation_version\":\"frozen-v1.2\",\"external_identifiers\":{},\"formal_charge_by_ccd\":\"{\\\"ehq\\\": 0}\",\"formulae\":\"[\\\"c13 h12 n4 o\\\"]\",\"geometry_note\":\"ccd ideal sdf is a reference chemical geometry, not a deposited bound pose.\",\"identity_status\":\"complete_deposited_inchikey\",\"inchikey\":\"jytphnopqgailg-uhfffaoysa-n\",\"inventory_origin\":\"v1_ccd_inventory\",\"isomeric_smiles\":\"cc1c(c(on1)c)c2c(c[nh]n2)c3ccncc3\",\"primary_name\":\"3,5-dimethyl-4-(4-pyridin-4-yl-1~{h}-pyrazol-3-yl)-1,2-oxazole\",\"retrieval_date\":\"2026-10-24\",\"smiles_stereo_by_ccd\":\"{\\\"ehq\\\": \\\"cc1c(c(on1)c)c2c(c[nh]n2)c3ccncc3\\\"}\",\"source_metadata_sha256\":\"{\\\"ehq\\\": \\\"df960e3aab6baf55a3172a9e93a08a62556bcb87e1652e7700f185a7aa71e84e\\\"}\",\"source_urls\":[\"https://www.rcsb.org/ligand/ehq\"]}",
      "source_urls": [
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      "verification_pending": false,
      "context_observations": [],
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        "descriptor_scope": "RDKit calculation for the source identity; not an experimental measurement",
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        "primary_name": "4-(3-methyl-5-phenyl-imidazol-4-yl)pyridine",
        "retrieval_date": "2026-10-24",
        "smiles_stereo_by_ccd": "{\"EH8\": \"Cn1cnc(c1c2ccncc2)c3ccccc3\"}",
        "source_metadata_sha256": "{\"EH8\": \"ceece2a4f38eba664a4bd2ec0b3960e9b902098d39cbe1db9bab78c01b41957a\"}",
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          "https://www.rcsb.org/ligand/EH8"
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      },
      "identity_note": "complete_deposited_InChIKey",
      "identity_resolved": true,
      "is_control": false,
      "is_probe": false,
      "measured_observation_count": 0,
      "name": "4-(3-methyl-5-phenyl-imidazol-4-yl)pyridine",
      "negative_count": 0,
      "observation_ids": [],
      "pdb_structure_count": 1,
      "preparation_count": 0,
      "preparation_ids": [],
      "protein_ids": [
        "UP:Q9BZ95"
      ],
      "relationships": [],
      "relevant": true,
      "search_text": "4-(3-methyl-5-phenyl-imidazol-4-yl)pyridine inchikey:nsjcxuonrhoytd-uhfffaoysa-n 4-(3-methyl-5-phenyl-imidazol-4-yl)pyridine nsd3 up:q9bz95:pwwp1 6g2b {\"aliases\":[\"4-(3-methyl-5-phenyl-imidazol-4-yl)pyridine\"],\"ccd_ids\":[\"eh8\"],\"ccd_names\":\"[\\\"4-(3-methyl-5-phenyl-imidazol-4-yl)pyridine\\\"]\",\"ccd_types\":\"[\\\"non-polymer\\\"]\",\"chemical_id\":\"inchikey:nsjcxuonrhoytd-uhfffaoysa-n\",\"connectivity_block\":\"nsjcxuonrhoytd\",\"curated_source_sha256\":null,\"curation_version\":\"frozen-v1.2\",\"external_identifiers\":{},\"formal_charge_by_ccd\":\"{\\\"eh8\\\": 0}\",\"formulae\":\"[\\\"c15 h13 n3\\\"]\",\"geometry_note\":\"ccd ideal sdf is a reference chemical geometry, not a deposited bound pose.\",\"identity_status\":\"complete_deposited_inchikey\",\"inchikey\":\"nsjcxuonrhoytd-uhfffaoysa-n\",\"inventory_origin\":\"v1_ccd_inventory\",\"isomeric_smiles\":\"cn1cnc(c1c2ccncc2)c3ccccc3\",\"primary_name\":\"4-(3-methyl-5-phenyl-imidazol-4-yl)pyridine\",\"retrieval_date\":\"2026-10-24\",\"smiles_stereo_by_ccd\":\"{\\\"eh8\\\": \\\"cn1cnc(c1c2ccncc2)c3ccccc3\\\"}\",\"source_metadata_sha256\":\"{\\\"eh8\\\": \\\"ceece2a4f38eba664a4bd2ec0b3960e9b902098d39cbe1db9bab78c01b41957a\\\"}\",\"source_urls\":[\"https://www.rcsb.org/ligand/eh8\"]}",
      "source_urls": [
        "https://www.rcsb.org/ligand/EH8"
      ],
      "verification_pending": false,
      "context_observations": [],
      "context_structures": [
        {
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          "biochemical_activity_inferred": 0,
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          "cutoff_angstrom": 5.0,
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          "role": "experimentally studied ligand",
          "role_category": "functional",
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      "context_assay_count": 0,
      "context_measured_count": 0,
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      "context_negative_count": 0,
      "context_is_probe": false,
      "context_bioactivity_only": false,
      "context_kind": "PWWP-proximal structure",
      "science": {
        "studied_compound": false,
        "measured_count": 0,
        "structural_research_ligand": true,
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        "other_component": false,
        "component_site_count": 0,
        "verification_queue": false,
        "positive_direct_binder": false,
        "reported_probe": false,
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        "cellular_activity": false,
        "protein_degradation": false,
        "bioactivity_only": false,
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        "annotation_roles": [
          "structural"
        ]
      },
      "science_label": "Deposited research ligand · no curated assay",
      "science_profile": {
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        "cellular_activity": false,
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        "compound_id": "INCHIKEY:NSJCXUONRHOYTD-UHFFFAOYSA-N",
        "entity_kind": "chemical_identity",
        "identity_resolved": true,
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        "other_pdb_component": false,
        "other_site_count": 0,
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        "primary_view": "structural",
        "protein_degradation": false,
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        "rule": "Independent source observations + per-site coordinate role, not universal pharmacology",
        "source_observation_ids": [],
        "source_site_ids": [
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        "structural_research_ligand": true,
        "structural_research_site_count": 1,
        "studied_compound": false,
        "total_observation_count": 0,
        "uncertain_site_count": 0,
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        "verification_queue": false,
        "verification_status": "source_scoped_mixed"
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      "science_site_roles": {
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          "observed_other_component": false,
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      "category": "Structure-supported identity",
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        "calculated_formula": "C18H15FN4O",
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        "calculated_molecular_weight": 322.343,
        "computed_inchikey": "FOQLCYIBXICLES-UHFFFAOYSA-N",
        "descriptor_scope": "RDKit calculation for the source identity; not an experimental measurement",
        "files": {
          "dark": "a777f153aedb74c06a50-dark.svg",
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        "rdkit_version": "2025.09.3",
        "status": "verified_smiles_full_inchikey_match"
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      "development_status": "Not independently curated",
      "domain_ids": [
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      "entity_kind": "chemical_identity",
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        "connectivity_block": "FOQLCYIBXICLES",
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        "external_identifiers": {},
        "formal_charge_by_ccd": "{\"EHW\": 0}",
        "formulae": "[\"C18 H15 F N4 O\"]",
        "geometry_note": "CCD ideal SDF is a reference chemical geometry, not a deposited bound pose.",
        "identity_status": "complete_deposited_InChIKey",
        "inchikey": "FOQLCYIBXICLES-UHFFFAOYSA-N",
        "inventory_origin": "v1_CCD_inventory",
        "isomeric_smiles": "Cc1c(c(on1)C)c2c(n(cn2)C)c3ccnc4c3ccc(c4)F",
        "primary_name": "4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-1,2-oxazole",
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        "smiles_stereo_by_ccd": "{\"EHW\": \"Cc1c(c(on1)C)c2c(n(cn2)C)c3ccnc4c3ccc(c4)F\"}",
        "source_metadata_sha256": "{\"EHW\": \"9172eac6950cdbbaf30e41637596d8d0295f831d835effba3697538c8f31e988\"}",
        "source_urls": [
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      "identity_note": "complete_deposited_InChIKey",
      "identity_resolved": true,
      "is_control": false,
      "is_probe": false,
      "measured_observation_count": 0,
      "name": "4-[5-(7-fluoranylquinolin-4-yl)-1-methyl-imidazol-4-yl]-3,5-dimethyl-1,2-oxazole",
      "negative_count": 0,
      "observation_ids": [],
      "pdb_structure_count": 1,
      "preparation_count": 0,
      "preparation_ids": [],
      "protein_ids": [
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      "relationships": [],
      "relevant": true,
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      "source_urls": [
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      "verification_pending": false,
      "context_observations": [],
      "context_structures": [
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      "context_measured_count": 0,
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      "context_negative_count": 0,
      "context_is_probe": false,
      "context_bioactivity_only": false,
      "context_kind": "PWWP-proximal structure",
      "science": {
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        "measured_count": 0,
        "structural_research_ligand": true,
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        "reported_control": false,
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        "compound_id": "INCHIKEY:FOQLCYIBXICLES-UHFFFAOYSA-N",
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        "calculated_TPSA": 59.81,
        "calculated_formula": "C15H18N4O",
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        "calculated_molecular_weight": 270.336,
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        "descriptor_scope": "RDKit calculation for the source identity; not an experimental measurement",
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        "connectivity_block": "DDBCCLBDEPERNR",
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        "external_identifiers": {},
        "formal_charge_by_ccd": "{\"EHK\": 0}",
        "formulae": "[\"C15 H18 N4 O\"]",
        "geometry_note": "CCD ideal SDF is a reference chemical geometry, not a deposited bound pose.",
        "identity_status": "complete_deposited_InChIKey",
        "inchikey": "DDBCCLBDEPERNR-UHFFFAOYSA-N",
        "inventory_origin": "v1_CCD_inventory",
        "isomeric_smiles": "CC1=CC(=O)N(N=C1c2ccncc2)C3CCNCC3",
        "primary_name": "5-methyl-2-piperidin-4-yl-6-pyridin-4-yl-pyridazin-3-one",
        "retrieval_date": "2026-10-24",
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      "relevant": true,
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        "https://www.rcsb.org/ligand/EHK"
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      "context_observations": [],
      "context_structures": [
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          "cutoff_angstrom": 5.0,
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      "context_negative_count": 0,
      "context_is_probe": false,
      "context_bioactivity_only": false,
      "context_kind": "PWWP-proximal structure",
      "science": {
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        "geometry_note": "CCD ideal SDF is a reference chemical geometry, not a deposited bound pose.",
        "identity_status": "complete_deposited_InChIKey",
        "inchikey": "TWZULJZXADJJPI-UHFFFAOYSA-N",
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        "retrieval_date": "2026-10-24",
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      "preparation_count": 0,
      "preparation_ids": [],
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      "relationships": [],
      "relevant": true,
      "search_text": "5-methyl-6-phenyl-2-piperidin-4-yl-pyridazin-3-one inchikey:twzuljzxadjjpi-uhfffaoysa-n 5-methyl-6-phenyl-2-piperidin-4-yl-pyridazin-3-one nsd3 up:q9bz95:pwwp1 6g27 {\"aliases\":[\"5-methyl-6-phenyl-2-piperidin-4-yl-pyridazin-3-one\"],\"ccd_ids\":[\"ehe\"],\"ccd_names\":\"[\\\"5-methyl-6-phenyl-2-piperidin-4-yl-pyridazin-3-one\\\"]\",\"ccd_types\":\"[\\\"non-polymer\\\"]\",\"chemical_id\":\"inchikey:twzuljzxadjjpi-uhfffaoysa-n\",\"connectivity_block\":\"twzuljzxadjjpi\",\"curated_source_sha256\":null,\"curation_version\":\"frozen-v1.2\",\"external_identifiers\":{},\"formal_charge_by_ccd\":\"{\\\"ehe\\\": 0}\",\"formulae\":\"[\\\"c16 h19 n3 o\\\"]\",\"geometry_note\":\"ccd ideal sdf is a reference chemical geometry, not a deposited bound pose.\",\"identity_status\":\"complete_deposited_inchikey\",\"inchikey\":\"twzuljzxadjjpi-uhfffaoysa-n\",\"inventory_origin\":\"v1_ccd_inventory\",\"isomeric_smiles\":\"cc1=cc(=o)n(n=c1c2ccccc2)c3ccncc3\",\"primary_name\":\"5-methyl-6-phenyl-2-piperidin-4-yl-pyridazin-3-one\",\"retrieval_date\":\"2026-10-24\",\"smiles_stereo_by_ccd\":\"{\\\"ehe\\\": \\\"cc1=cc(=o)n(n=c1c2ccccc2)c3ccncc3\\\"}\",\"source_metadata_sha256\":\"{\\\"ehe\\\": \\\"878d7330d7894dac372099eb44786256b5d06b46fdfcb79fcc2d5c507c59b862\\\"}\",\"source_urls\":[\"https://www.rcsb.org/ligand/ehe\"]}",
      "source_urls": [
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      "verification_pending": false,
      "context_observations": [],
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      "context_structures": [
        {
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          "biochemical_activity_inferred": 0,
          "ccd_id": "EHH",
          "chain_contacts_5A": "[{\"auth_asym_id\": \"A\", \"auth_seq_id\": \"278\", \"component\": \"VAL\", \"entity_position\": 16, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7495, \"uniprot_position\": 278}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"281\", \"component\": \"TYR\", \"entity_position\": 19, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.2082, \"uniprot_position\": 281}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"282\", \"component\": \"PRO\", \"entity_position\": 20, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.7416, \"uniprot_position\": 282}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"284\", \"component\": \"TRP\", \"entity_position\": 22, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3824, \"uniprot_position\": 284}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"312\", \"component\": \"PHE\", \"entity_position\": 50, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.5861, \"uniprot_position\": 312}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"314\", \"component\": \"SER\", \"entity_position\": 52, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.7456, \"uniprot_position\": 314}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"316\", \"component\": \"GLN\", \"entity_position\": 54, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.1439, \"uniprot_position\": 316}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"318\", \"component\": \"GLU\", \"entity_position\": 56, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.414, \"uniprot_position\": 318}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"319\", \"component\": \"ARG\", \"entity_position\": 57, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.8389, \"uniprot_position\": 319}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"320\", \"component\": \"ALA\", \"entity_position\": 58, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.0649, \"uniprot_position\": 320}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"367\", \"component\": \"GLN\", \"entity_position\": 105, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7482, \"uniprot_position\": 367}]",
          "chain_id": "PDB:6G2E:CHAIN:A:UP:Q9BZ95",
          "chemical_id": "INCHIKEY:LYFZPAXTPPYSEC-UHFFFAOYSA-N",
          "contact_class": "native_annotation_core_contact",
          "contact_distance_rank": 1,
          "core_contacts_5A": "[{\"auth_asym_id\": \"A\", \"auth_seq_id\": \"278\", \"component\": \"VAL\", \"entity_position\": 16, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7495, \"uniprot_position\": 278}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"281\", \"component\": \"TYR\", \"entity_position\": 19, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.2082, \"uniprot_position\": 281}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"282\", \"component\": \"PRO\", \"entity_position\": 20, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.7416, \"uniprot_position\": 282}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"284\", \"component\": \"TRP\", \"entity_position\": 22, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3824, \"uniprot_position\": 284}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"312\", \"component\": \"PHE\", \"entity_position\": 50, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.5861, \"uniprot_position\": 312}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"314\", \"component\": \"SER\", \"entity_position\": 52, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.7456, \"uniprot_position\": 314}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"316\", \"component\": \"GLN\", \"entity_position\": 54, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.1439, \"uniprot_position\": 316}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"318\", \"component\": \"GLU\", \"entity_position\": 56, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.414, \"uniprot_position\": 318}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"319\", \"component\": \"ARG\", \"entity_position\": 57, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.8389, \"uniprot_position\": 319}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"320\", \"component\": \"ALA\", \"entity_position\": 58, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.0649, \"uniprot_position\": 320}]",
          "covalent_connection_ids": "[]",
          "cutoff_angstrom": 5.0,
          "domain_id": "UP:Q9BZ95:PWWP1",
          "exact_pwwp_contact": true,
          "gene": "NSD3",
          "geometry_scope": "first deposited model; asymmetric unit; heavy atoms with occupancy >0; alternate locations retained; no symmetry expansion",
          "instance": {
            "alternate_locations": "[]",
            "auth_asym_ids": "[\"A\"]",
            "auth_seq_id": "401",
            "ccd_id": "EHH",
            "chemical_id": "INCHIKEY:LYFZPAXTPPYSEC-UHFFFAOYSA-N",
            "component_context": "nonpolymer_component",
            "contacted_polymer_partners": "[{\"description\": \"Histone-lysine N-methyltransferase NSD3\", \"entity_id\": \"1\", \"is_PWWP_family_protein\": true, \"label_asym_id\": \"A\", \"sequence_length\": 136, \"uniprot_ids\": [\"Q9BZ95\"]}]",
            "covalent_connection_ids": "[]",
            "heavy_atom_row_count": 22,
            "ideal_CCD_SDF_is_source_pose": 0,
            "label_asym_id": "B",
            "label_seq_id": null,
            "ligand_instance_id": "PDB:6G2E:LIG:B:EHH:401:.",
            "nearest_polypeptide_distance_angstrom": 2.7456,
            "nearest_polypeptide_label_asym_id": "A",
            "occupancy_max": 1.0,
            "occupancy_min": 1.0,
            "pdb_id": "6G2E",
            "polypeptide_contact_residues_5A": "[{\"auth_asym_id\": \"A\", \"auth_seq_id\": \"278\", \"component\": \"VAL\", \"entity_position\": 16, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7495, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"281\", \"component\": \"TYR\", \"entity_position\": 19, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.2082, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"282\", \"component\": \"PRO\", \"entity_position\": 20, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.7416, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"284\", \"component\": \"TRP\", \"entity_position\": 22, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.3824, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"312\", \"component\": \"PHE\", \"entity_position\": 50, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.5861, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"314\", \"component\": \"SER\", \"entity_position\": 52, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 2.7456, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"316\", \"component\": \"GLN\", \"entity_position\": 54, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.1439, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"318\", \"component\": \"GLU\", \"entity_position\": 56, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.414, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"319\", \"component\": \"ARG\", \"entity_position\": 57, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.8389, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"320\", \"component\": \"ALA\", \"entity_position\": 58, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 4.0649, \"uniprot_position\": null}, {\"auth_asym_id\": \"A\", \"auth_seq_id\": \"367\", \"component\": \"GLN\", \"entity_position\": 105, \"label_asym_id\": \"A\", \"minimum_distance_angstrom\": 3.7482, \"uniprot_position\": null}]",
            "pose_kind": "deposited_source_coordinates",
            "reference_model": "1",
            "source_coordinate_file": "Structures/NSD3__HUMAN__Q9BZ95/Co-Crystals/6G2E/original.cif",
            "source_coordinate_sha256": "e809b9baa1c5ade377fc643ce3d4afbc3db6e5f9b3bcbe1a3b027811cdaae5ae",
            "unique_heavy_atom_names": 22
          },
          "ligand_instance_id": "PDB:6G2E:LIG:B:EHH:401:.",
          "ligand_label_asym_id": "B",
          "minimum_Pfam_distance_angstrom": 2.7456,
          "minimum_chain_distance_angstrom": 2.7456,
          "minimum_core_distance_angstrom": 2.7456,
          "multiple_contacting_mapped_chains": 0,
          "pdb_id": "6G2E",
          "protein_id": "UP:Q9BZ95",
          "protein_label_asym_id": "A",
          "rank_interpretation": "Distance rank among mapped chains only; crystal packing and biological site assignment require separate review.",
          "role": "experimentally studied ligand",
          "role_category": "functional",
          "site_id": "PDB:6G2E:LIG:B:EHH:401:.:SITE:UP:Q9BZ95:PWWP1:A",
          "source_coordinate_sha256": "e809b9baa1c5ade377fc643ce3d4afbc3db6e5f9b3bcbe1a3b027811cdaae5ae"
        }
      ],
      "context_assay_count": 0,
      "context_measured_count": 0,
      "context_bound_count": 1,
      "context_pdb_count": 1,
      "context_negative_count": 0,
      "context_is_probe": false,
      "context_bioactivity_only": false,
      "context_kind": "PWWP-proximal structure",
      "science": {
        "studied_compound": false,
        "measured_count": 0,
        "structural_research_ligand": true,
        "research_pdb_count": 1,
        "other_component": false,
        "component_site_count": 0,
        "verification_queue": false,
        "positive_direct_binder": false,
        "reported_probe": false,
        "reported_control": false,
        "cellular_activity": false,
        "protein_degradation": false,
        "bioactivity_only": false,
        "research_site_count": 1,
        "unknown_site_count": 0,
        "annotation_roles": [
          "structural"
        ]
      },
      "science_label": "Deposited research ligand · no curated assay",
      "science_profile": {
        "annotation_roles": [
          "structural"
        ],
        "cellular_activity": false,
        "chemical_id": "INCHIKEY:LYFZPAXTPPYSEC-UHFFFAOYSA-N",
        "compound_id": "INCHIKEY:LYFZPAXTPPYSEC-UHFFFAOYSA-N",
        "entity_kind": "chemical_identity",
        "identity_resolved": true,
        "measured_observation_count": 0,
        "name": "[3,5-dimethyl-4-(1-methyl-5-pyridin-4-yl-imidazol-4-yl)phenyl]methanamine",
        "other_pdb_component": false,
        "other_site_count": 0,
        "positive_direct_binder": false,
        "primary_view": "structural",
        "protein_degradation": false,
        "reported_control": false,
        "reported_probe": false,
        "rule": "Independent source observations + per-site coordinate role, not universal pharmacology",
        "source_observation_ids": [],
        "source_site_ids": [
          "PDB:6G2E:LIG:B:EHH:401:.:SITE:UP:Q9BZ95:PWWP1:A"
        ],
        "structural_research_ligand": true,
        "structural_research_site_count": 1,
        "studied_compound": false,
        "total_observation_count": 0,
        "uncertain_site_count": 0,
        "uncertainty": "Classification is evidence- and experiment-scoped; missing assays do not prove nonbinding.",
        "verification_queue": false,
        "verification_status": "source_scoped_mixed"
      },
      "science_site_roles": {
        "PDB:6G2E:LIG:B:EHH:401:.:SITE:UP:Q9BZ95:PWWP1:A": {
          "ccd_url": "https://www.rcsb.org/ligand/EHH",
          "chemical_id": "INCHIKEY:LYFZPAXTPPYSEC-UHFFFAOYSA-N",
          "compound_id": "INCHIKEY:LYFZPAXTPPYSEC-UHFFFAOYSA-N",
          "contact_class": "native_annotation_core_contact",
          "coordinate_sha256": "e809b9baa1c5ade377fc643ce3d4afbc3db6e5f9b3bcbe1a3b027811cdaae5ae",
          "domain_id": "UP:Q9BZ95:PWWP1",
          "exact_pwwp_contact": true,
          "ligand_instance_id": "PDB:6G2E:LIG:B:EHH:401:.",
          "observed_other_component": false,
          "pdb_id": "6G2E",
          "protein_id": "UP:Q9BZ95",
          "role_code": "reported_studied_structural_ligand",
          "role_group": "research_ligand",
          "rule": "Phase5 exact deposited site role, measured heavy-atom contacts and native-domain scope",
          "site_id": "PDB:6G2E:LIG:B:EHH:401:.:SITE:UP:Q9BZ95:PWWP1:A",
          "source_role": "experimentally studied ligand",
          "source_url": "https://www.rcsb.org/structure/6G2E",
          "structural_research_ligand": true,
          "uncertainty": "Role is source-annotated; deposited proximity alone does not establish solution binding or biological activity.",
          "verification_status": "phase5_derived_deposited_geometry"
        }
      },
      "science_assay_roles": {},
      "example": null,
      "matched_observations": [],
      "matched_assay_count": 0
    }
  ]
}