4ofb

Crystal structure of human BRCA1 BRCT in complex with nonphosphopeptide inhibitor

Method: X-RAY DIFFRACTION Dmax: 73.8 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Breast cancer type 1 susceptibility protein

Homo sapiens

UniProt P38398

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1646–1859 Fragment:BRCT 1 domain (UNP residues 1646-1859) nonphosphopeptide inhibitor × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6.5;298 K;0.1M Sodium Cacodylate, 0.1M Magnesium Acetate,24% PEG6000, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K Resolution 3.05 Å R-free 0.237

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

31 other PDB entries and 70 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BRCA1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–214; UniProt 1646–1859

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 4ofb

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4ofb
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4ofb
Deposition date deposition_date2014-01-14
Structure title titleCrystal structure of human BRCA1 BRCT in complex with nonphosphopeptide inhibitor
Keywords keywordsBRCT domain, DSB DNA damage repair, non-phosphorylated peptide, PROTEIN BINDING; PROTEIN BINDING
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier19.60
Radius of gyration Rg (electron density) rg_electron18.86
Forward intensity I(0) i011585800.00
Molecular weight molecular_weight25497.0 kDa
Excluded volume excluded_volume31977 ų
Envelope volume envelope_volume36924 ų
Hydration-shell volume shell_volume17085 ų
Envelope diameter envelope_diameter73.2
Shell Rg shell_rg24.51
Envelope Rg envelope_rg19.34
Shape Rg shape_rg18.84
Total Rg total_rg19.77
Total atoms total_atoms1791
Residues n_residues219
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax73.8
Rg (real space) rg_real19.67
Rg uncertainty (real space) rg_real_error0.65
I(0) (real space) i0_real1.1590e+07
I(0) uncertainty (real space) i0_real_error1.5750e+05
Rg (reciprocal space) rg_reciprocal19.66
I(0) (reciprocal space) i0_reciprocal11590000.0000
Solution quality estimate total_estimate0.7974
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary21.8
Skewness Skewness skewness0.527
Kurtosis Kurtosis kurtosis0.057
Angular range angular_range— – 0.4050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3754000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.533; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.765; Smooth: 0.998

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4ofba1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.15 — BRCT domain
Superfamily Superfamily superfamilyc.15.1 — BRCT domain
Family Family familyc.15.1.3 — BRCT domain
Domain ID domain_idd4ofba2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.15 — BRCT domain
Superfamily Superfamily superfamilyc.15.1 — BRCT domain
Family Family familyc.15.1.3 — BRCT domain

CATH v4.4 (2 domains)

Domain ID domain_id4ofbA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily10190 — BRCT domain
Domain ID domain_id4ofbA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily10190 — BRCT domain

8. Citations (1)

9. Files and Curves (10)