6hm5

X-ray diffraction
2.33Å resolution

Crystal structure of TOPBP1 BRCT0,1,2 in complex with a RAD9 phosphopeptide

Released:

Function and Biology Details

Reaction catalysed:
Exonucleolytic cleavage in the 3'- to 5'-direction to yield nucleoside 5'-phosphates
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-103368 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
BRCT domain-containing protein Chain: A
Molecule details ›
Chain: A
Length: 290 amino acids
Theoretical weight: 33.16 KDa
Source organism: Gallus gallus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: A0A1D5P3M9 (Residues: 1-289; Coverage: 19%)
Gene name: TOPBP1
Sequence domains:
Structure domains: BRCT domain
Cell cycle checkpoint control protein RAD9A Chain: B
Molecule details ›
Chain: B
Length: 11 amino acids
Theoretical weight: 1.21 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: Q99638 (Residues: 380-390; Coverage: 3%)
Gene name: RAD9A

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I04
Spacegroup: P21
Unit cell:
a: 59.05Å b: 34.07Å c: 66.67Å
α: 90° β: 103.57° γ: 90°
R-values:
R R work R free
0.205 0.201 0.241
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided