Literature on ADPRHL2
ADPRHL2 [ENSP00000362273]
ADP-ribose glycohydrolase ARH3; ADP-ribose glycohydrolase that preferentially hydrolyzes the scissile alpha-O-linkage attached to the anomeric C1'' position of ADP- ribose and acts on different substrates, such as proteins ADP- ribosylated on serine, free poly(ADP-ribose) and O-acetyl-ADP-D-ribose . Specifically acts as a serine mono-ADP-ribosylhydrolase by mediating the removal of mono-ADP-ribose attached to serine residues on proteins, thereby playing a key role in DNA damage response (PubMed:28650317, PubMed:29234005, PubMed:30045870). Serine ADP-ribosylation of proteins constitutes the primary form of ADP-ribosylation of proteins in response to DNA damage . Does not hydrolyze ADP- ribosyl-arginine, -cysteine, -diphthamide, or -asparagine bonds . Also able to degrade protein free poly(ADP-ribose), which is synthesized in response to DNA damage: free poly(ADP-ribose) acts as a potent cell death signal and its degradation by ADPRHL2 protects cells from poly(ADP-ribose)-dependent cell death, a process named parthanatos . Also hydrolyzes free poly(ADP- ribose) in mitochondria . Specifically digests O- acetyl-ADP-D-ribose, a product of deacetylation reactions catalyzed by sirtuins . Specifically degrades 1''- O-acetyl-ADP-D-ribose isomer, rather than 2''-O-acetyl-ADP-D-ribose or 3''-O-acetyl-ADP-D-ribose isomers . ECO:0000269|PubMed:21498885, ECO:0000269|PubMed:22433848, ECO:0000269|PubMed:28650317, ECO:0000269|PubMed:29234005, ECO:0000269|PubMed:29480802, ECO:0000269|PubMed:29907568,; Belongs to the ADP-ribosylglycohydrolase family.
Synonyms: ADPRHL2, ADPRHL2p, hADPRHL2, Q9NX46, Q9NX46p ...