Resolved chemical identity

Bis-Tris

Other PDB component · not a studied ligand

Complete deposited identity retained; no connectivity-only or name-only merge.

2 assay / association records1 preparations0 research-ligand PDB entries

No deposited PWWP research-ligand geometry is classified for this preparation in the selected release. Deposition of a buffer/ion is not binding evidence.

Clinical / development status: Not independently curated. A chemical probe classification does not imply medicinal approval.

Identity is separate from preparation

Chemical identity

Stable identity: INCHIKEY:OWMVSZAMULFTJU-UHFFFAOYSA-N
Full InChIKey: OWMVSZAMULFTJU-UHFFFAOYSA-N
Source identity status: complete deposited InChIKey
Deposited CCD identifiers: BTB
External identifiers: See deposited identity and source links

Reference formula: C8H19NO5
Calculated molecular weight: 209.242
Calculated descriptors: cLogP -3.0113 · TPSA 104.39 Å² · HBD 5 · HBA 6RDKit 2025.09.3; calculations for this source identity, not experimental measurements.
Depiction validation: verified smiles full inchikey match

SMILES, InChI & complete identity record

Isomeric SMILES: C(CO)N(CCO)C(CO)(CO)CO
InChI: Not curated

{
  "aliases": [
    "2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL"
  ],
  "ccd_ids": [
    "BTB"
  ],
  "ccd_names": "[\"2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL\"]",
  "ccd_types": "[\"non-polymer\"]",
  "chemical_id": "INCHIKEY:OWMVSZAMULFTJU-UHFFFAOYSA-N",
  "connectivity_block": "OWMVSZAMULFTJU",
  "curated_source_sha256": null,
  "curation_version": "frozen-v1.2",
  "external_identifiers": {},
  "formal_charge_by_ccd": "{\"BTB\": 0}",
  "formulae": "[\"C8 H19 N O5\"]",
  "geometry_note": "CCD ideal SDF is a reference chemical geometry, not a deposited bound pose.",
  "identity_status": "complete_deposited_InChIKey",
  "inchikey": "OWMVSZAMULFTJU-UHFFFAOYSA-N",
  "inventory_origin": "v1_CCD_inventory",
  "isomeric_smiles": "C(CO)N(CCO)C(CO)(CO)CO",
  "primary_name": "2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL",
  "retrieval_date": "2026-10-24",
  "smiles_stereo_by_ccd": "{\"BTB\": \"C(CO)N(CCO)C(CO)(CO)CO\"}",
  "source_metadata_sha256": "{\"BTB\": \"9ecb6143d600fff5c257f040356e052be2e915cf861053ed9c8eeb26080329c2\"}",
  "source_urls": [
    "https://www.rcsb.org/ligand/BTB"
  ]
}

Source aliases (2)

2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
Bis-Tris

Measured target and original context

Bioactivity & experimental observations

Download assay CSV

Each row is one source-specific observation. Repeated measurements of this compound are not independent compounds. Direct binding, functional displacement and cellular outcomes retain their distinct endpoints.

Preparation	Tested target & construct	Method / endpoint	Original observation	Conditions & uncertainty	Source & verification
Bis-TrisPREP:BIS-TRIS	DNMT3A PWWP Construct not curatedHomo sapiens	Qualitative / associationNo pharmacological activity assignedstructural occupancy association	No quantitative observation curated	Experimental context Replicates Not curated Uncertainty definition Not curated; do not assume SD or SEM Temperature — Buffer Crystallization reservoir contains 0.1 M Bis-Tris; not an affinity assay Conditions {} Qualification Pocket occupancy in high-concentration crystallization buffer is not evidence of potency.	PMID:21720545 · 2011local_primary_full_text_XML; Tables 1-2, crystallization methods and ligand Results inspected Original observation record { "DMSO_percent": null, "abstract_reported_endpoint": null, "abstract_reported_method": null, "abstract_reported_units": null, "abstract_reported_value": null, "assay_construct_end": null, "assay_construct_start": null, "assay_record_id": "PWWP:ASSAY:0033", "assay_type": "No pharmacological activity assigned", "assay_value_transferred_to_modeled_stereoisomers": 0, "audit_decision": "resolve_missing_CCD_to_BTB; retain_buffer_role", "baseline_assay_record": 1, "baseline_original": "{\"assay_record_id\": \"PWWP:ASSAY:0033\", \"assay_type\": \"No pharmacological activity assigned\", \"ccd_id\": null, \"compound_name\": \"Bis-Tris\", \"conditions\": {}, \"domain\": \"PWWP\", \"evidence_location\": \"Results: Trimethylated lysine histone recognition; crystallization methods\", \"evidence_url\": \"https://pmc.ncbi.nlm.nih.gov/articles/PMC3119473/\", \"gene\": \"DNMT3A\", \"interpretation\": \"Observed aromatic-cage occupancy by crystallization buffer. Do not classify as a validated pharmacological ligand.\", \"numeric_value_inferred_from_structure\": false, \"pdb_id\": \"3LLR\", \"reference_id\": \"PMID:21720545\", \"role\": \"crystallization_buffer\", \"uncertainty\": null, \"units\": null, \"value\": null, \"value_operator\": \"=\", \"verification_level\": \"primary_full_text_sections_verified\"}", "buffer": "Crystallization reservoir contains 0.1 M Bis-Tris; not an affinity assay", "ccd_id": "BTB", "ccd_mapping_source": null, "chemical_id": "INCHIKEY:OWMVSZAMULFTJU-UHFFFAOYSA-N", "chemical_identity_status": "exact_single_CCD_identity", "component_context": null, "compound_name": "Bis-Tris", "conditions": "{}", "crystallographic_component_ids": null, "domain": "PWWP", "domain_id": "UP:Q9Y6K1:PWWP1", "endpoint_label_status": null, "evidence_class": "structural_occupancy_association", "evidence_location": "Results: Trimethylated lysine histone recognition; crystallization methods", "evidence_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC3119473/", "gene": "DNMT3A", "interpretation": "Observed aromatic-cage occupancy by crystallization buffer. Do not classify as a validated pharmacological ligand.", "molecular_entity_type": "buffer_additive", "numeric_transcription_status": "not_a_quantitative_affinity_record", "numeric_value_inferred_from_structure": 0, "pH": 6.0, "pdb_id": "3LLR", "preparation_id": "PREP:BIS-TRIS", "protein_id": "UP:Q9Y6K1", "qualitative_result": null, "reference_id": "PMID:21720545", "remaining_uncertainty": "Pocket occupancy in high-concentration crystallization buffer is not evidence of potency.", "replicates": null, "role": "crystallization_buffer", "source_component_url": null, "source_id": "S07", "source_reported_uncertainty": null, "source_reported_units": null, "source_reported_value": null, "source_verification_scope": "local_primary_full_text_XML; Tables 1-2, crystallization methods and ligand Results inspected", "temperature_C": null, "uncertainty": null, "uncertainty_type": null, "uncertainty_uM": null, "unit_conversion": null, "units": null, "value": null, "value_operator": null, "value_uM": null, "verification_level": "primary_full_text_sections_verified" }
Bis-TrisPREP:BIS-TRIS	DNMT3B PWWP Construct not curatedHomo sapiens	Qualitative / associationNo pharmacological activity assignedstructural occupancy association	No quantitative observation curated	Experimental context Replicates Not curated Uncertainty definition Not curated; do not assume SD or SEM Temperature — Buffer Crystallization reservoir contains 0.1 M Bis-Tris; not an affinity assay Conditions {} Qualification Pocket occupancy in high-concentration crystallization buffer is not evidence of potency.	PMID:21720545 · 2011local_primary_full_text_XML; Tables 1-2, crystallization methods and ligand Results inspected Original observation record { "DMSO_percent": null, "abstract_reported_endpoint": null, "abstract_reported_method": null, "abstract_reported_units": null, "abstract_reported_value": null, "assay_construct_end": null, "assay_construct_start": null, "assay_record_id": "PWWP:ASSAY:0034", "assay_type": "No pharmacological activity assigned", "assay_value_transferred_to_modeled_stereoisomers": 0, "audit_decision": "resolve_missing_CCD_to_BTB; retain_buffer_role", "baseline_assay_record": 1, "baseline_original": "{\"assay_record_id\": \"PWWP:ASSAY:0034\", \"assay_type\": \"No pharmacological activity assigned\", \"ccd_id\": null, \"compound_name\": \"Bis-Tris\", \"conditions\": {}, \"domain\": \"PWWP\", \"evidence_location\": \"Results: Trimethylated lysine histone recognition; crystallization methods\", \"evidence_url\": \"https://pmc.ncbi.nlm.nih.gov/articles/PMC3119473/\", \"gene\": \"DNMT3B\", \"interpretation\": \"Observed aromatic-cage occupancy by crystallization buffer. Do not classify as a validated pharmacological ligand.\", \"numeric_value_inferred_from_structure\": false, \"pdb_id\": \"3QKJ\", \"reference_id\": \"PMID:21720545\", \"role\": \"crystallization_buffer\", \"uncertainty\": null, \"units\": null, \"value\": null, \"value_operator\": \"=\", \"verification_level\": \"primary_full_text_sections_verified\"}", "buffer": "Crystallization reservoir contains 0.1 M Bis-Tris; not an affinity assay", "ccd_id": "BTB", "ccd_mapping_source": null, "chemical_id": "INCHIKEY:OWMVSZAMULFTJU-UHFFFAOYSA-N", "chemical_identity_status": "exact_single_CCD_identity", "component_context": null, "compound_name": "Bis-Tris", "conditions": "{}", "crystallographic_component_ids": null, "domain": "PWWP", "domain_id": "UP:Q9UBC3:PWWP1", "endpoint_label_status": null, "evidence_class": "structural_occupancy_association", "evidence_location": "Results: Trimethylated lysine histone recognition; crystallization methods", "evidence_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC3119473/", "gene": "DNMT3B", "interpretation": "Observed aromatic-cage occupancy by crystallization buffer. Do not classify as a validated pharmacological ligand.", "molecular_entity_type": "buffer_additive", "numeric_transcription_status": "not_a_quantitative_affinity_record", "numeric_value_inferred_from_structure": 0, "pH": 6.5, "pdb_id": "3QKJ", "preparation_id": "PREP:BIS-TRIS", "protein_id": "UP:Q9UBC3", "qualitative_result": null, "reference_id": "PMID:21720545", "remaining_uncertainty": "Pocket occupancy in high-concentration crystallization buffer is not evidence of potency.", "replicates": null, "role": "crystallization_buffer", "source_component_url": null, "source_id": "S07", "source_reported_uncertainty": null, "source_reported_units": null, "source_reported_value": null, "source_verification_scope": "local_primary_full_text_XML; Tables 1-2, crystallization methods and ligand Results inspected", "temperature_C": null, "uncertainty": null, "uncertainty_type": null, "uncertainty_uM": null, "unit_conversion": null, "units": null, "value": null, "value_operator": null, "value_uM": null, "verification_level": "primary_full_text_sections_verified" }

Preparation

Tested target & construct

Method / endpoint

Original observation

Conditions & uncertainty

Source & verification

Bis-TrisPREP:BIS-TRIS

DNMT3A PWWP
Construct not curatedHomo sapiens

Qualitative / associationNo pharmacological activity assignedstructural occupancy association

No quantitative observation curated

Experimental context

Replicates: Not curated
Uncertainty definition: Not curated; do not assume SD or SEM
Temperature: —
Buffer: Crystallization reservoir contains 0.1 M Bis-Tris; not an affinity assay
Conditions: {}
Qualification: Pocket occupancy in high-concentration crystallization buffer is not evidence of potency.

PMID:21720545 · 2011local_primary_full_text_XML; Tables 1-2, crystallization methods and ligand Results inspected

Original observation record

{
  "DMSO_percent": null,
  "abstract_reported_endpoint": null,
  "abstract_reported_method": null,
  "abstract_reported_units": null,
  "abstract_reported_value": null,
  "assay_construct_end": null,
  "assay_construct_start": null,
  "assay_record_id": "PWWP:ASSAY:0033",
  "assay_type": "No pharmacological activity assigned",
  "assay_value_transferred_to_modeled_stereoisomers": 0,
  "audit_decision": "resolve_missing_CCD_to_BTB; retain_buffer_role",
  "baseline_assay_record": 1,
  "baseline_original": "{\"assay_record_id\": \"PWWP:ASSAY:0033\", \"assay_type\": \"No pharmacological activity assigned\", \"ccd_id\": null, \"compound_name\": \"Bis-Tris\", \"conditions\": {}, \"domain\": \"PWWP\", \"evidence_location\": \"Results: Trimethylated lysine histone recognition; crystallization methods\", \"evidence_url\": \"https://pmc.ncbi.nlm.nih.gov/articles/PMC3119473/\", \"gene\": \"DNMT3A\", \"interpretation\": \"Observed aromatic-cage occupancy by crystallization buffer. Do not classify as a validated pharmacological ligand.\", \"numeric_value_inferred_from_structure\": false, \"pdb_id\": \"3LLR\", \"reference_id\": \"PMID:21720545\", \"role\": \"crystallization_buffer\", \"uncertainty\": null, \"units\": null, \"value\": null, \"value_operator\": \"=\", \"verification_level\": \"primary_full_text_sections_verified\"}",
  "buffer": "Crystallization reservoir contains 0.1 M Bis-Tris; not an affinity assay",
  "ccd_id": "BTB",
  "ccd_mapping_source": null,
  "chemical_id": "INCHIKEY:OWMVSZAMULFTJU-UHFFFAOYSA-N",
  "chemical_identity_status": "exact_single_CCD_identity",
  "component_context": null,
  "compound_name": "Bis-Tris",
  "conditions": "{}",
  "crystallographic_component_ids": null,
  "domain": "PWWP",
  "domain_id": "UP:Q9Y6K1:PWWP1",
  "endpoint_label_status": null,
  "evidence_class": "structural_occupancy_association",
  "evidence_location": "Results: Trimethylated lysine histone recognition; crystallization methods",
  "evidence_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC3119473/",
  "gene": "DNMT3A",
  "interpretation": "Observed aromatic-cage occupancy by crystallization buffer. Do not classify as a validated pharmacological ligand.",
  "molecular_entity_type": "buffer_additive",
  "numeric_transcription_status": "not_a_quantitative_affinity_record",
  "numeric_value_inferred_from_structure": 0,
  "pH": 6.0,
  "pdb_id": "3LLR",
  "preparation_id": "PREP:BIS-TRIS",
  "protein_id": "UP:Q9Y6K1",
  "qualitative_result": null,
  "reference_id": "PMID:21720545",
  "remaining_uncertainty": "Pocket occupancy in high-concentration crystallization buffer is not evidence of potency.",
  "replicates": null,
  "role": "crystallization_buffer",
  "source_component_url": null,
  "source_id": "S07",
  "source_reported_uncertainty": null,
  "source_reported_units": null,
  "source_reported_value": null,
  "source_verification_scope": "local_primary_full_text_XML; Tables 1-2, crystallization methods and ligand Results inspected",
  "temperature_C": null,
  "uncertainty": null,
  "uncertainty_type": null,
  "uncertainty_uM": null,
  "unit_conversion": null,
  "units": null,
  "value": null,
  "value_operator": null,
  "value_uM": null,
  "verification_level": "primary_full_text_sections_verified"
}

Bis-TrisPREP:BIS-TRIS

DNMT3B PWWP
Construct not curatedHomo sapiens

Qualitative / associationNo pharmacological activity assignedstructural occupancy association

No quantitative observation curated

Experimental context

Replicates: Not curated
Uncertainty definition: Not curated; do not assume SD or SEM
Temperature: —
Buffer: Crystallization reservoir contains 0.1 M Bis-Tris; not an affinity assay
Conditions: {}
Qualification: Pocket occupancy in high-concentration crystallization buffer is not evidence of potency.

PMID:21720545 · 2011local_primary_full_text_XML; Tables 1-2, crystallization methods and ligand Results inspected

Original observation record

{
  "DMSO_percent": null,
  "abstract_reported_endpoint": null,
  "abstract_reported_method": null,
  "abstract_reported_units": null,
  "abstract_reported_value": null,
  "assay_construct_end": null,
  "assay_construct_start": null,
  "assay_record_id": "PWWP:ASSAY:0034",
  "assay_type": "No pharmacological activity assigned",
  "assay_value_transferred_to_modeled_stereoisomers": 0,
  "audit_decision": "resolve_missing_CCD_to_BTB; retain_buffer_role",
  "baseline_assay_record": 1,
  "baseline_original": "{\"assay_record_id\": \"PWWP:ASSAY:0034\", \"assay_type\": \"No pharmacological activity assigned\", \"ccd_id\": null, \"compound_name\": \"Bis-Tris\", \"conditions\": {}, \"domain\": \"PWWP\", \"evidence_location\": \"Results: Trimethylated lysine histone recognition; crystallization methods\", \"evidence_url\": \"https://pmc.ncbi.nlm.nih.gov/articles/PMC3119473/\", \"gene\": \"DNMT3B\", \"interpretation\": \"Observed aromatic-cage occupancy by crystallization buffer. Do not classify as a validated pharmacological ligand.\", \"numeric_value_inferred_from_structure\": false, \"pdb_id\": \"3QKJ\", \"reference_id\": \"PMID:21720545\", \"role\": \"crystallization_buffer\", \"uncertainty\": null, \"units\": null, \"value\": null, \"value_operator\": \"=\", \"verification_level\": \"primary_full_text_sections_verified\"}",
  "buffer": "Crystallization reservoir contains 0.1 M Bis-Tris; not an affinity assay",
  "ccd_id": "BTB",
  "ccd_mapping_source": null,
  "chemical_id": "INCHIKEY:OWMVSZAMULFTJU-UHFFFAOYSA-N",
  "chemical_identity_status": "exact_single_CCD_identity",
  "component_context": null,
  "compound_name": "Bis-Tris",
  "conditions": "{}",
  "crystallographic_component_ids": null,
  "domain": "PWWP",
  "domain_id": "UP:Q9UBC3:PWWP1",
  "endpoint_label_status": null,
  "evidence_class": "structural_occupancy_association",
  "evidence_location": "Results: Trimethylated lysine histone recognition; crystallization methods",
  "evidence_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC3119473/",
  "gene": "DNMT3B",
  "interpretation": "Observed aromatic-cage occupancy by crystallization buffer. Do not classify as a validated pharmacological ligand.",
  "molecular_entity_type": "buffer_additive",
  "numeric_transcription_status": "not_a_quantitative_affinity_record",
  "numeric_value_inferred_from_structure": 0,
  "pH": 6.5,
  "pdb_id": "3QKJ",
  "preparation_id": "PREP:BIS-TRIS",
  "protein_id": "UP:Q9UBC3",
  "qualitative_result": null,
  "reference_id": "PMID:21720545",
  "remaining_uncertainty": "Pocket occupancy in high-concentration crystallization buffer is not evidence of potency.",
  "replicates": null,
  "role": "crystallization_buffer",
  "source_component_url": null,
  "source_id": "S07",
  "source_reported_uncertainty": null,
  "source_reported_units": null,
  "source_reported_value": null,
  "source_verification_scope": "local_primary_full_text_XML; Tables 1-2, crystallization methods and ligand Results inspected",
  "temperature_C": null,
  "uncertainty": null,
  "uncertainty_type": null,
  "uncertainty_uM": null,
  "unit_conversion": null,
  "units": null,
  "value": null,
  "value_operator": null,
  "value_uM": null,
  "verification_level": "primary_full_text_sections_verified"
}

Exact deposited instances

Experimental structures

Native-core and broader Pfam proximity are distinguished from contacts elsewhere in a protein. Each action opens the actual deposited ligand instance. Geometric proximity does not supply a measured binding affinity.

Entry / ligand	Native domain & protein chain	Geometric evidence	Minimum distance	Inspect
3LLR · BTBPDB:3LLR:LIG:F:BTB:154:.	DNMT3A PWWP1Protein label chain A · ligand label chain F	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.6798 Å Pfam: 2.6798 Å	View deposited instance
3LLR · BTBPDB:3LLR:LIG:G:BTB:154:.	DNMT3A PWWP1Protein label chain B · ligand label chain G	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.563 Å Pfam: 2.563 Å	View deposited instance
3LLR · BTBPDB:3LLR:LIG:I:BTB:154:.	DNMT3A PWWP1Protein label chain C · ligand label chain I	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.4073 Å Pfam: 2.4073 Å	View deposited instance
3LLR · BTBPDB:3LLR:LIG:I:BTB:154:.	DNMT3A PWWP1Protein label chain E · ligand label chain I	isolated construct contact outside annotationsbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 9.6538 Å Pfam: 9.6538 Å	View deposited instance
3LLR · BTBPDB:3LLR:LIG:J:BTB:154:.	DNMT3A PWWP1Protein label chain D · ligand label chain J	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.619 Å Pfam: 2.619 Å	View deposited instance
3LLR · BTBPDB:3LLR:LIG:K:BTB:154:.	DNMT3A PWWP1Protein label chain E · ligand label chain K	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.6371 Å Pfam: 2.6371 Å	View deposited instance
3QKJ · BTBPDB:3QKJ:LIG:E:BTB:356:.	DNMT3B PWWP1Protein label chain A · ligand label chain E	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.4424 Å Pfam: 2.4424 Å	View deposited instance
3QKJ · BTBPDB:3QKJ:LIG:H:BTB:356:.	DNMT3B PWWP1Protein label chain B · ligand label chain H	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.4453 Å Pfam: 2.4453 Å	View deposited instance
3QKJ · BTBPDB:3QKJ:LIG:K:BTB:356:.	DNMT3B PWWP1Protein label chain C · ligand label chain K	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.3821 Å Pfam: 2.3821 Å	View deposited instance
3QKJ · BTBPDB:3QKJ:LIG:L:BTB:356:.	DNMT3B PWWP1Protein label chain D · ligand label chain L	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.5326 Å Pfam: 2.5326 Å	View deposited instance
6KCU · BTBPDB:6KCU:LIG:B:BTB:800:.	Jasper PWWP1Protein label chain A · ligand label chain B	native annotation core contactbuffer/additivebuffer component · other component. Deposited geometry is not solution affinity.	Core: 2.6311 Å Pfam: 2.6311 Å	View deposited instance

Preparations, identities and controls remain separate

Experimental context

Bis-Tris

PREP:BIS-TRIS

Complete deposited identity retained; no connectivity-only or name-only merge.

buffer

Complete preparation record

{
  "chemical_id": "INCHIKEY:OWMVSZAMULFTJU-UHFFFAOYSA-N",
  "entity_type": "buffer_additive",
  "exact_ccd_id": "BTB",
  "identity_note": "Complete deposited identity retained; no connectivity-only or name-only merge.",
  "identity_status": "exact_single_CCD_identity",
  "modeled_candidate_ccd_ids": "[]",
  "modeled_candidate_chemical_ids": "[]",
  "name": "Bis-Tris",
  "preparation_id": "PREP:BIS-TRIS",
  "role": "buffer",
  "sequence_if_defined": null
}

Provenance and reproducibility

Sources & downloads

https://pmc.ncbi.nlm.nih.gov/articles/PMC3119473/https://www.rcsb.org/ligand/BTB

Download complete evidence JSON Curation methods & source receipts

Snapshot 2026-10-26 · phase5-1.0.0 · original measurements, operators, constructs and uncertainty are retained in the exports.