1y98

Structure of the BRCT repeats of BRCA1 bound to a CtIP phosphopeptide.

Method: X-RAY DIFFRACTION Dmax: 72.6 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, BRCT 2 CtIP PHOSPHORYLATED PEPTIDE × 1 CO COBALT (II) ION × 1 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6.5;293 K;AMMONIUM SULPHATE, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.50 Å R-free 0.270
2 Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1646–1859 Fragment:BRCT 1, BRCT 2 CtIP PHOSPHORYLATED PEPTIDE × 2 CO COBALT (II) ION × 2 SO4 SULFATE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6.5;293 K;AMMONIUM SULPHATE, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.50 Å R-free 0.270

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 69 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 1y98

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1y98
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1y98
Deposition date deposition_date2004-12-14
Structure title titleStructure of the BRCT repeats of BRCA1 bound to a CtIP phosphopeptide.
Keywords keywordsBREAST CANCER, BRCT, BRCA1, CtIP, PHOSPHOPEPTIDE, ANTITUMOR PROTEIN; ANTITUMOR PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.63
Radius of gyration Rg (electron density) rg_electron18.89
Forward intensity I(0) i012005900.00
Molecular weight molecular_weight25611.0 kDa
Excluded volume excluded_volume31941 ų
Envelope volume envelope_volume37148 ų
Hydration-shell volume shell_volume17106 ų
Envelope diameter envelope_diameter72.1
Shell Rg shell_rg24.53
Envelope Rg envelope_rg19.40
Shape Rg shape_rg18.88
Total Rg total_rg19.77
Total atoms total_atoms1792
Residues n_residues222
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 dmax72.6
Rg (real space) rg_real19.71
Rg uncertainty (real space) rg_real_error0.63
I(0) (real space) i0_real1.2010e+07
I(0) uncertainty (real space) i0_real_error1.5920e+05
Rg (reciprocal space) rg_reciprocal19.70
I(0) (reciprocal space) i0_reciprocal12010000.0000
Solution quality estimate total_estimate0.8078
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary21.5
Skewness Skewness skewness0.519
Kurtosis Kurtosis kurtosis-0.012
Angular range angular_range— – 0.4050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4193000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.570; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.791; Smooth: 0.996

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1y98a1
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_idd1y98a2
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_id1y98A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily10190 — BRCT domain
Domain ID domain_id1y98A02
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)