PDBe 4av1

X-ray diffraction
3.1Å resolution

Crystal structure of the human PARP-1 DNA binding domain in complex with DNA

Released:

Function and Biology Details

Reaction catalysed:
NAD(+) + (ADP-D-ribosyl)(n)-acceptor = nicotinamide + (ADP-D-ribosyl)(n+1)-acceptor
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero hexamer (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
Poly [ADP-ribose] polymerase 1 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 223 amino acids
Theoretical weight: 25.09 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P09874 (Residues: 5-202; Coverage: 20%)
Gene names: ADPRT, PARP1, PPOL
Sequence domains: Poly(ADP-ribose) polymerase and DNA-Ligase Zn-finger region
Structure domains: Zinc finger, PARP-type
5'-D(*AP*AP*GP*TP*GP*TP*TP*GP*CP*AP*TP*TP)-3' Chain: X
Molecule details ›
Chain: X
Length: 12 nucleotides
Theoretical weight: 3.69 KDa
Source organism: synthetic construct
Expression system: Not provided
5'-D(*TP*AP*AP*TP*GP*CP*AP*AP*CP*AP*CP*TP)-3' Chain: Y
Molecule details ›
Chain: Y
Length: 12 nucleotides
Theoretical weight: 3.63 KDa
Source organism: synthetic construct
Expression system: Not provided

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I03
Spacegroup: C2
Unit cell:
a: 163.978Å b: 59.504Å c: 61.582Å
α: 90° β: 101.18° γ: 90°
R-values:
R R work R free
0.23 0.23 0.249
Expression systems:
  • Spodoptera frugiperda
  • Not provided