Combining Chemical Genetics with Proximity-Dependent Labeling Reveals Cellular Targets of Poly(ADP-ribose) Polymerase 14 (PARP14)

Ian Carter-O'Connell, Anke Vermehren-Schmaedick, Haihong Jin, Rory K. Morgan, Larry David, Michael Cohen

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Poly(ADP-ribose) polymerase 14 (PARP14) is a member of the PARP family of enzymes that transfer ADP-ribose from NAD+ to nucleophilic amino acids on target proteins, a process known as mono-ADP-ribosylation (MARylation). PARP14 is involved in normal immune function through the IL-4 signaling pathway and is a prosurvival factor in multiple myeloma and hepatocellular carcinoma. A mechanistic understanding of the physiological and pathophysiological roles of PARP14 has been limited by the dearth of PARP14-specific MARylation targets. Herein we engineered a PARP14 variant that uses an NAD+ analog that is orthogonal to wild-type PARPs for identifying PARP14-specific MARylation targets. Combining this chemical genetics approach with a BioID approach for proximity-dependent labeling of PARP14 interactors, we identified 114 PARP14-specific protein substrates, several of which are RNA regulatory proteins. One of these targets is PARP13, a protein known to play a role in regulating RNA stability. PARP14 MARylates PARP13 on several acidic amino acids. This study not only reveals crosstalk among PARP family members but also highlights the advantage of using disparate approaches for identifying the direct targets of individual PARP family members.

Original languageEnglish (US)
Pages (from-to)2841-2848
Number of pages8
JournalACS Chemical Biology
Volume13
Issue number10
DOIs
StatePublished - Oct 19 2018

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Poly(ADP-ribose) Polymerases
Labeling
Adenosine Diphosphate
NAD
Proteins
RNA
Adenosine Diphosphate Ribose
Acidic Amino Acids
Genetics
RNA Stability
Crosstalk
Multiple Myeloma
Interleukin-4
Hepatocellular Carcinoma
Amino Acids
Substrates
Enzymes

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine

Cite this

Combining Chemical Genetics with Proximity-Dependent Labeling Reveals Cellular Targets of Poly(ADP-ribose) Polymerase 14 (PARP14). / Carter-O'Connell, Ian; Vermehren-Schmaedick, Anke; Jin, Haihong; Morgan, Rory K.; David, Larry; Cohen, Michael.

In: ACS Chemical Biology, Vol. 13, No. 10, 19.10.2018, p. 2841-2848.

Research output: Contribution to journalArticle

Carter-O'Connell, Ian ; Vermehren-Schmaedick, Anke ; Jin, Haihong ; Morgan, Rory K. ; David, Larry ; Cohen, Michael. / Combining Chemical Genetics with Proximity-Dependent Labeling Reveals Cellular Targets of Poly(ADP-ribose) Polymerase 14 (PARP14). In: ACS Chemical Biology. 2018 ; Vol. 13, No. 10. pp. 2841-2848.
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