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Macrodomain-containing proteins: regulating new intracellular functions of mono(ADP-ribosyl)ation.

ABSTRACT: ADP-ribosylation of proteins was first described in the early 1960's, and today the function and regulation of poly(ADP-ribosyl)ation (PARylation) is partially understood. By contrast, little is known about intracellular mono(ADP-ribosyl)ation (MARylation) by ADP-ribosyl transferase (ART) enzymes, such as ARTD10. Recent findings indicate that MARylation regulates signalling and transcription by modifying key components in these processes. Emerging evidence also suggests that specific macrodomain-containing proteins, including ARTD8, macroD1, macroD2 and C6orf130, which are distinct from those affecting PARylation, interact with MARylation on target proteins to 'read' and 'erase' this modification. Thus, studying macrodomain-containing proteins is key to understanding the function and regulation of MARylation.

SUBMITTER: Feijs KL

PROVIDER: S-EPMC7097401 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature

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Macrodomain-containing proteins: regulating new intracellular functions of mono(ADP-ribosyl)ation.

Feijs Karla L H KL Forst Alexandra H AH Verheugd Patricia P Lüscher Bernhard B

Nature reviews. Molecular cell biology 20130605 7

ADP-ribosylation of proteins was first described in the early 1960's, and today the function and regulation of poly(ADP-ribosyl)ation (PARylation) is partially understood. By contrast, little is known about intracellular mono(ADP-ribosyl)ation (MARylation) by ADP-ribosyl transferase (ART) enzymes, such as ARTD10. Recent findings indicate that MARylation regulates signalling and transcription by modifying key components in these processes. Emerging evidence also suggests that specific macrodomain ...[more]

PMID: 23736681

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Project description:Many of the long-term effects of cocaine on the brain's reward circuitry have been shown to be mediated by alterations in gene expression. Several chromatin modifications, including histone acetylation and methylation, have been implicated in this regulation, but the effect of other histone modifications remains poorly understood. Poly(ADP-ribose) polymerase-1 (PARP-1), a ubiquitous and abundant nuclear protein, catalyzes the synthesis of a negatively charged polymer called poly(ADP-ribose) or PAR on histones and other substrate proteins and forms transcriptional regulatory complexes with several other chromatin proteins. Here, we identify an essential role for PARP-1 in cocaine-induced molecular, neural, and behavioral plasticity. Repeated cocaine administration, including self-administration, increased global levels of PARP-1 and its mark PAR in mouse nucleus accumbens (NAc), a key brain reward region. Using PARP-1 inhibitors and viral-mediated gene transfer, we established that PARP-1induction in NAc mediates enhanced behavioral responses to cocaine, including increased self-administration of the drug. Using chromatin immunoprecipitation sequencing, we demonstrated a global, genome-wide enrichment of PARP-1 in NAc of cocaine-exposed mice and identified several PARP-1 target genes that could contribute to the lasting effects of cocaine. Specifically, we identified sidekick-1-important for synaptic connections during development-as a critical PARP-1 target gene involved in cocaine's behavioral effects as well as in its ability to induce dendritic spines on NAc neurons. These findings establish the involvement of PARP-1 and PARylation in the long-term actions of cocaine. c57bl/6 mice were given IP injections of chronic cocaine 20mg/kg once per day for 7 days and sacrificed 30 minutes after the final dose of cocaine. Control animals were given saline for 7 days and sacrificed 30 minutes after the final dose of saline. Nucleus accumbens (NAc) tissue was collected and then PARP-1 ChIP-seq was performed. Three sequencing replicates were performed on each group.

Dataset Information

Macrodomain-containing proteins: regulating new intracellular functions of mono(ADP-ribosyl)ation.

Publications

Macrodomain-containing proteins: regulating new intracellular functions of mono(ADP-ribosyl)ation.

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