Function and Biology

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

Source organisms:
Biochemical function: zinc ion binding
Biological process: not assigned
Cellular component: not assigned

EC 2.4.2.30: NAD(+) ADP-ribosyltransferase

Reaction catalysed:
NAD(+) + (ADP-D-ribosyl)(n)-acceptor = nicotinamide + (ADP-D-ribosyl)(n+1)-acceptor
Systematic name:
NAD(+):poly(ADP-D-ribosyl)-acceptor ADP-D-ribosyl-transferase
Alternative Name(s):
  • ADP-ribosyltransferase (polymerizing)
  • NAD(+):poly(adenine-diphosphate-D-ribosyl)-acceptor ADP-D-ribosyl-transferase
  • NAD(+):poly(adenosine-diphosphate-D-ribosyl)-acceptor ADP-D-ribosyl-transferase
  • Poly(ADP-ribose) synthase
  • Poly(ADP-ribose) synthetase
  • Poly(ADP-ribose)polymerase
  • Poly(adenosine diphosphate ribose) polymerase

GO terms

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Sequence family

Pfam Protein family (Pfam)
PF00645
Domain description: Poly(ADP-ribose) polymerase and DNA-Ligase Zn-finger region
Occurring in:
  1. Poly [ADP-ribose] polymerase 1, processed N-terminus
The deposited structure of PDB entry 4av1 contains 8 copies of Pfam domain PF00645 (Poly(ADP-ribose) polymerase and DNA-Ligase Zn-finger region) in Poly [ADP-ribose] polymerase 1, processed N-terminus. Showing 2 copies in chain B (some of the copies are out of the observed residue ranges!).

InterPro InterPro annotations
IPR001510
Domain description: Zinc finger, PARP-type
Occurring in:
  1. Poly [ADP-ribose] polymerase 1, processed N-terminus
IPR036957
Domain description: Zinc finger, PARP-type superfamily
Occurring in:
  1. Poly [ADP-ribose] polymerase 1, processed N-terminus

Structure domain

CATH CATH domain
3.30.1740.10
Class: Alpha Beta
Architecture: 2-Layer Sandwich
Topology: first zn-finger domain of poly(adp-ribose) polymerase-1
Homology: Zinc finger, PARP-type
Occurring in:
  1. Poly [ADP-ribose] polymerase 1, processed N-terminus
The deposited structure of PDB entry 4av1 contains 4 copies of CATH domain 3.30.1740.10 (first zn-finger domain of poly(adp-ribose) polymerase-1) in Poly [ADP-ribose] polymerase 1, processed N-terminus. Showing 1 copy in chain B.