8rs8

Crystal structure of BRCA1 BRCTs in complex with a RIF1 phosphopeptide

Method: X-RAY DIFFRACTION Dmax: 116.3 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 Not recorded Telomere-associated protein RIF1 × 1 (Q5UIP0) EDO 1,2-ETHANEDIOL × 9 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;287 K;55.5 mM MES, 44.5 mM Imidazole, 120 mM Diethylene glycol, 120 mM Triethylene-glycol, 120 mM Tetraethylene glycol, 120 mM Pentaethylene glycol, 20% (v/v) Ethylene glycol, 10% (w/v) PEG 8000 Resolution 1.31 Å R-free 0.179
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1646–1859 Not recorded Telomere-associated protein RIF1 × 1 (Q5UIP0) EDO 1,2-ETHANEDIOL × 7 IMD IMIDAZOLE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;287 K;55.5 mM MES, 44.5 mM Imidazole, 120 mM Diethylene glycol, 120 mM Triethylene-glycol, 120 mM Tetraethylene glycol, 120 mM Pentaethylene glycol, 20% (v/v) Ethylene glycol, 10% (w/v) PEG 8000 Resolution 1.31 Å R-free 0.179
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1646–1859 Not recorded Telomere-associated protein RIF1 × 1 (Q5UIP0) EDO 1,2-ETHANEDIOL × 13 IMD IMIDAZOLE × 1 PEG DI(HYDROXYETHYL)ETHER × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;287 K;55.5 mM MES, 44.5 mM Imidazole, 120 mM Diethylene glycol, 120 mM Triethylene-glycol, 120 mM Tetraethylene glycol, 120 mM Pentaethylene glycol, 20% (v/v) Ethylene glycol, 10% (w/v) PEG 8000 Resolution 1.31 Å R-free 0.179
4 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 1646–1859 Not recorded Telomere-associated protein RIF1 × 1 (Q5UIP0) EDO 1,2-ETHANEDIOL × 8 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;287 K;55.5 mM MES, 44.5 mM Imidazole, 120 mM Diethylene glycol, 120 mM Triethylene-glycol, 120 mM Tetraethylene glycol, 120 mM Pentaethylene glycol, 20% (v/v) Ethylene glycol, 10% (w/v) PEG 8000 Resolution 1.31 Å R-free 0.179

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 67 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 4–217; UniProt 1646–1859 Author chain B; PDBConstruct 4–217; UniProt 1646–1859 Author chain C; PDBConstruct 4–217; UniProt 1646–1859 Author chain D; PDBConstruct 4–217; UniProt 1646–1859

Telomere-associated protein RIF1

OrganismNot specified

UniProt Q5UIP0

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 E; UniProt 2260–2270 Non-standard monomer:Yes (specific site not provided by mmCIF) Breast cancer type 1 susceptibility protein × 1 (P38398) EDO 1,2-ETHANEDIOL × 9 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;287 K;55.5 mM MES, 44.5 mM Imidazole, 120 mM Diethylene glycol, 120 mM Triethylene-glycol, 120 mM Tetraethylene glycol, 120 mM Pentaethylene glycol, 20% (v/v) Ethylene glycol, 10% (w/v) PEG 8000 Resolution 1.31 Å R-free 0.179
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain F; UniProt 2260–2270 Non-standard monomer:Yes (specific site not provided by mmCIF) Breast cancer type 1 susceptibility protein × 1 (P38398) EDO 1,2-ETHANEDIOL × 7 IMD IMIDAZOLE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;287 K;55.5 mM MES, 44.5 mM Imidazole, 120 mM Diethylene glycol, 120 mM Triethylene-glycol, 120 mM Tetraethylene glycol, 120 mM Pentaethylene glycol, 20% (v/v) Ethylene glycol, 10% (w/v) PEG 8000 Resolution 1.31 Å R-free 0.179
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain G; UniProt 2260–2270 Non-standard monomer:Yes (specific site not provided by mmCIF) Breast cancer type 1 susceptibility protein × 1 (P38398) EDO 1,2-ETHANEDIOL × 13 IMD IMIDAZOLE × 1 PEG DI(HYDROXYETHYL)ETHER × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;287 K;55.5 mM MES, 44.5 mM Imidazole, 120 mM Diethylene glycol, 120 mM Triethylene-glycol, 120 mM Tetraethylene glycol, 120 mM Pentaethylene glycol, 20% (v/v) Ethylene glycol, 10% (w/v) PEG 8000 Resolution 1.31 Å R-free 0.179
4 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain H; UniProt 2260–2270 Non-standard monomer:Yes (specific site not provided by mmCIF) Breast cancer type 1 susceptibility protein × 1 (P38398) EDO 1,2-ETHANEDIOL × 8 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;287 K;55.5 mM MES, 44.5 mM Imidazole, 120 mM Diethylene glycol, 120 mM Triethylene-glycol, 120 mM Tetraethylene glycol, 120 mM Pentaethylene glycol, 20% (v/v) Ethylene glycol, 10% (w/v) PEG 8000 Resolution 1.31 Å R-free 0.179

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.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence
UniProt name RIF1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain E; PDBConstruct 1–11; UniProt 2260–2270 Author chain F; PDBConstruct 1–11; UniProt 2260–2270 Author chain G; PDBConstruct 1–11; UniProt 2260–2270 Author chain H; PDBConstruct 1–11; UniProt 2260–2270

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 8rs8

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8rs8
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8rs8
Deposition date deposition_date2024-01-24
最后修订 last_revision2025-07-16
Structure title titleCrystal structure of BRCA1 BRCTs in complex with a RIF1 phosphopeptide
Keywords keywordsDNA damage repair, PEPTIDE BINDING PROTEIN; PEPTIDE BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier35.06
Radius of gyration Rg (electron density) rg_electron34.54
Forward intensity I(0) i0163675000.00
Molecular weight molecular_weight102800.0 kDa
Excluded volume excluded_volume128780 ų
Envelope volume envelope_volume167520 ų
Hydration-shell volume shell_volume40760 ų
Envelope diameter envelope_diameter125.8
Shell Rg shell_rg40.76
Envelope Rg envelope_rg33.88
Shape Rg shape_rg34.53
Total Rg total_rg35.02
Total atoms total_atoms14359
Residues n_residues871
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 dmax116.3
Rg (real space) rg_real34.98
Rg uncertainty (real space) rg_real_error0.99
I(0) (real space) i0_real1.6370e+08
I(0) uncertainty (real space) i0_real_error2.7040e+06
Rg (reciprocal space) rg_reciprocal35.03
I(0) (reciprocal space) i0_reciprocal163700000.0000
Solution quality estimate total_estimate0.8976
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary46.5
Skewness Skewness skewness0.177
Kurtosis Kurtosis kurtosis-0.530
Angular range angular_range— – 0.2250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha21930000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.898; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.992; Smooth: 0.978

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)