Function and Biology

Crystal structure of ARC4 from human Tankyrase 2 in complex with peptide from human TERF1 (chimeric peptide)

Source organism: Homo sapiens
Biochemical function: not assigned
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:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Sequence family

Pfam Protein family (Pfam)
PF12796
Domain description: Ankyrin repeats (3 copies)
Occurring in:
  1. Poly [ADP-ribose] polymerase tankyrase-2
The deposited structure of PDB entry 3tws contains 8 copies of Pfam domain PF12796 (Ankyrin repeats (3 copies)) in Poly [ADP-ribose] polymerase tankyrase-2. Showing 2 copies in chain A.

InterPro InterPro annotations
IPR002110
Domain description: Ankyrin repeat
Occurring in:
  1. Poly [ADP-ribose] polymerase tankyrase-2
IPR036770
Domain description: Ankyrin repeat-containing domain superfamily
Occurring in:
  1. Poly [ADP-ribose] polymerase tankyrase-2

Structure domain

CATH CATH domain
1.25.40.20
Class: Mainly Alpha
Architecture: Alpha Horseshoe
Topology: Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homology: Ankyrin repeat-containing domain
Occurring in:
  1. Poly [ADP-ribose] polymerase tankyrase-2
The deposited structure of PDB entry 3tws contains 4 copies of CATH domain 1.25.40.20 (Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat) in Poly [ADP-ribose] polymerase tankyrase-2. Showing 1 copy in chain A.