1t29

Crystal structure of the BRCA1 BRCT repeats bound to a phosphorylated BACH1 peptide

Method: X-RAY DIFFRACTION Dmax: 70.9 Å Quality: REASONABLE

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 repeats of BRCA1 (residues 1646-1859) BACH1 phosphorylated peptide × 1 (Q9BX63) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;295 K;PEG4000, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K Resolution 2.30 Å R-free 0.266

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

BACH1 phosphorylated peptide

OrganismNot specified

UniProt Q9BX63

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 B; UniProt 985–998 Fragment:residues 985-998 Non-standard monomer:Yes (specific site not provided by mmCIF) Breast cancer type 1 susceptibility protein × 1 (P38398) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;295 K;PEG4000, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K Resolution 2.30 Å R-free 0.266

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.

1 other PDB entries and 1 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BRIP1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–14; UniProt 985–998

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 1t29

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1t29
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1t29
Deposition date deposition_date2004-04-20
Structure title titleCrystal structure of the BRCA1 BRCT repeats bound to a phosphorylated BACH1 peptide
Keywords keywordsBRCA1, BRCT repeats, BACH1, phosphopeptide recognition, breast cancer, SIGNALING PROTEIN; SIGNALING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.51
Radius of gyration Rg (electron density) rg_electron18.79
Forward intensity I(0) i011506500.00
Molecular weight molecular_weight25282.0 kDa
Excluded volume excluded_volume31644 ų
Envelope volume envelope_volume36377 ų
Hydration-shell volume shell_volume16846 ų
Envelope diameter envelope_diameter72.2
Shell Rg shell_rg24.50
Envelope Rg envelope_rg19.41
Shape Rg shape_rg18.79
Total Rg total_rg19.67
Total atoms total_atoms1774
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 dmax70.9
Rg (real space) rg_real19.60
Rg uncertainty (real space) rg_real_error0.56
I(0) (real space) i0_real1.1510e+07
I(0) uncertainty (real space) i0_real_error1.4660e+05
Rg (reciprocal space) rg_reciprocal19.58
I(0) (reciprocal space) i0_reciprocal11510000.0000
Solution quality estimate total_estimate0.7409
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary22.0
Skewness Skewness skewness0.538
Kurtosis Kurtosis kurtosis0.013
Angular range angular_range— – 0.4100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4004000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.601; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.825; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1t29a1
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_idd1t29a2
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_id1t29A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily10190 — BRCT domain
Domain ID domain_id1t29A02
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)