2017
DOI: 10.1016/j.molcel.2017.04.028
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Ubiquitin Modification by the E3 Ligase/ADP-Ribosyltransferase Dtx3L/Parp9

Abstract: SUMMARY ADP-ribosylation of proteins is emerging as an important regulatory mechanism. Depending on the family member, ADP-ribosyltransferases conjugate either a single ADP-ribose to a target, or generate ADP-ribose chains. Here we characterize Parp9, a mono-ADP-ribosyltransferase reported to be enzymatically inactive. Parp9 undergoes heterodimerization with Dtx3L, a histone E3 ligase involved in DNA damage repair. We show that the Dtx3L/Parp9 heterodimer mediates NAD+- dependent mono-ADP-ribosylation of ubiqu… Show more

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Cited by 178 publications
(236 citation statements)
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“…PARP9 is a binding partner of Deltex 3-like, an E3 ubiquitin ligase that ubiquitinates histone H4 and protects cells against DNA damage. In the presence of its binding partner, PARP9 MARylates ubiquitin, preventing E3 ligase activity and providing regulation of the complex (46). The PARP9-Deltex 3-like complex also activates signal transducer and activator of transcription 1 (STAT1) and ubiquitinates histone proteins to promote the expression of a subset of interferonstimulated genes, thereby stimulating the innate immune response.…”
Section: Parps As Transcription Factor Coactivators/corepressorsmentioning
confidence: 99%
“…PARP9 is a binding partner of Deltex 3-like, an E3 ubiquitin ligase that ubiquitinates histone H4 and protects cells against DNA damage. In the presence of its binding partner, PARP9 MARylates ubiquitin, preventing E3 ligase activity and providing regulation of the complex (46). The PARP9-Deltex 3-like complex also activates signal transducer and activator of transcription 1 (STAT1) and ubiquitinates histone proteins to promote the expression of a subset of interferonstimulated genes, thereby stimulating the innate immune response.…”
Section: Parps As Transcription Factor Coactivators/corepressorsmentioning
confidence: 99%
“…While the determinant for the high selectivity of bART for substrates is not clear (further discussed in Section 4), the ability of mammalian PARPs to modify a broad (but defined) subset of substrates could be partially dependent by protein-protein interactions, which could be responsible for substrate presentation to the enzyme. Such mechanism of substrate fishing has been demonstrated for PARP5a and PARP5b [153,154] as well as for PARP6 and PARP9 [108,155]. Same as for the specificity of PARPs in targeting well defined amino acids within protein substrates.…”
Section: Amino Acids Modified By Adprmentioning
confidence: 91%
“…Conversely, eukaryotic ARTD/ PARP group modifies a multitude of proteins targeting several amino acid residues through a selective mechanism that is still unknown. Amino acids modified by eukaryotic ARTD include serine (abbreviated as Ser-ADPr) and tyrosine (Tyr-ADPr) through O-glycosylation bonds [115,[143][144][145][146][147], negatively charged residues such as glutamic and aspartic amino acids through ester linkages [148,149], positively charged lysine through N-glycosidic bond [150], glycine as in the case of PARP9 [108] and cysteine as reported for PARP8 [43].…”
Section: Amino Acids Modified By Adprmentioning
confidence: 99%
See 1 more Smart Citation
“…[13] Other studies show that Arg42 of Ub is ADP-ribosylated by af amily of effector proteins originating from Legionella pneumophila,t he pathogen causing Legionnaires disease. Ubiquitin (Ub), a7 6a mino acid residue long post-translational modifier itself,has recently been found to be modified with ADPr on different positions.T his cross-talk between ADP-ribosylation and ubiquitination is reported to have aregulatory effect on the DNArepair mechanism, where low levels of NADl ead to ubiquitination of histone protein H4, but high levels of NADl ead to ADP-ribosylation of Gly76; the C-terminus of Ub.…”
mentioning
confidence: 99%