STRUCTURAL BIOLOGY & CHEMICAL EVIDENCEDataset v1.2 · Phase 6D · Comparative experimental recognition environments

Phase 6C.1 · Original deposited experimental coordinates

Comprehensive structure quality

Residue and heavy-atom completeness calculated directly from 230 source PDBx/mmCIF files, each verified against its frozen historical checksum. Each mapped PWWP chain/domain, NMR model and qualified source-supported ligand environment is tracked individually.

230Historically verified coordinate files
496Chain/domains with an observed PWWP core
283Source-supported ligand environments calculated
170Mapped chain/domains lacking observed core coordinates

Experimental-coordinate case studies

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9FOC · NSD2 PWWP1

Newly assessed ligand-bearing structure

Protein and bound ligand coordinates are deposited, but the literature's assayed compound 11 preparation remains stereochemically unresolved. Structural components do not fix that ambiguity.

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2M16 · PSIP1 PWWP

Deposited NMR ensemble

All model-specific atom observations are retained. Ensemble variation is not represented by a single first-model structure alone.

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11OA · DNMT3A PWWP1

Independently confirmed side-chain gaps

Five observed-core chains each lack 198 standard side-chain heavy atoms; 13 other mapped chains contain no observed core coordinates.

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Analyze family-wide experimental binding-site differences →

All 666 original chain/domain mappings

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3 matching chain/domain records. Filters must be satisfied by the same experimental chain/domain. Model-specific assessment is available within each detail record.

PDB · chainTarget/domainCore observedExperimentMissing side-chain atomsBackbone gapsResearch ligand environmentsAssessment
6IIQ · AHDGFL3 PWWP158 / 58X-RAY DIFFRACTION · 1.85 Å000atomic completeness calculated
6IIQ · BHDGFL3 PWWP158 / 58X-RAY DIFFRACTION · 1.85 Å000atomic completeness calculated
6IIQ · CHDGFL3 PWWP158 / 58X-RAY DIFFRACTION · 1.85 Å000atomic completeness calculated

Reproducible scientific exports

Individual experimental mmCIF files are verified by their original SHA-256. Core coordinates, standard heavy-atom templates and source UniProt mappings are analyzed model-by-model. Union-of-alternates and conformer-consistent completeness are distinct; 5 Å and 6 Å geometric proximity are not equivalent to a validated interaction.