PARP (Protein | Antibody | cDNA Clone | ELISA Kit)

All PARP reagents are produced in house and quality controlled, including 4 PARP Antibody, 30 PARP Gene, 2 PARP IP Kit, 2 PARP Lysate, 2 PARP Protein, 2 PARP qPCR. All PARP reagents are ready to use.

PARP Background

Poly (ADP-ribose) polymerase 1(PRAP1), also known as NAD(+) ADP-ribosyltransferase 1(ADPRT), is a chromatin-associated enzyme which modifies various nuclear proteins by poly(ADP-ribosyl)ation. The ADP-D-ribosyl group of NAD+ is transferred to an acceptor carboxyl group on a histone or the enzyme itself, and further ADP-ribosyl groups are transferred to the 2'-position of the terminal adenosine moiety, building up a polymer with an average chain length of 2-3 units. The poly(ADP-ribosyl)ation modification is critical for a wide range of processes, including DNA repair, regulation of chromosome structure, transcriptional regulation, mitosis and apoptosis. PARP1 is demonstrateed to mediate the poly(ADP-ribose) ation of APLF (aprataxin PNK-like factor) and CHFR (checkpoint protein with FHA and RING domains), two representative proteins involved in the DNA damage response and checkpoint regulation. Further, It has been suggested that DNA-dependent protein kinase (DNA-PK), another component of DNA repair, suppresses PARP activity, probably through direct binding and/or sequestration of DNA-ends which serve as an important stimulator for both enzymes. PARP1 inhibitors is thus proposed as a targeted cancer therapy for recombination deficient cancers, such as BRCA2 tumors.

PARP References

  • Malanga M. et al., 1998, J Biol Chem. 273: 11839-11843.
  • Ariumi Y. et al., 1999, Oncogene. 18: 4616-4625.
  • Helleday T. et al., 2005, Cell Cycle. 4: 1176-1178.
  • Ahell I. et al., 2008, Nature. 451: 81-85.