Article ; Online: ADP-ribosylation of DNA and RNA.
2021 Volume 105, Page(s) 103144
Abstract: ADP-ribosylation is a chemical modification of macromolecules found across all domains of life and known to regulate a variety of cellular processes. Notably, it has a well-established role in the DNA damage response. While it was historically known as a ...
| Abstract | ADP-ribosylation is a chemical modification of macromolecules found across all domains of life and known to regulate a variety of cellular processes. Notably, it has a well-established role in the DNA damage response. While it was historically known as a post-translational modification of proteins, recent studies have shown that nucleic acids can also serve as substrates of reversible ADP-ribosylation. More precisely, ADP-ribosylation of DNA bases, phosphorylated DNA ends and phosphorylated RNA ends have been reported. We will discuss these three types of modification in details. In a variety of bacterial species, including Mycobacterium tuberculosis, ADP-ribosylation of thymidine has emerged as the mode of action of a toxin-antitoxin system named DarTG, with the resultant products perceived as DNA damage by the cell. On the other hand, mammalian DNA damage sensors PARP1, PARP2 and PARP3 were shown to ADP-ribosylate phosphorylated ends of double-stranded DNA in vitro. Additionally, TRPT1 and several PARP enzymes, including PARP10, can add ADP-ribose to the 5'-phosphorylated end of single-stranded RNA in vitro, representing a novel RNA capping mechanism. Together, these discoveries have led to the emergence of a new and exciting research area, namely DNA and RNA ADP-ribosylation, that is likely to have far-reaching implications for the fields of DNA repair, replication and epigenetics. |
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| MeSH term(s) | ADP-Ribosylation ; Animals ; Cell Cycle Proteins/metabolism ; DNA/metabolism ; DNA Damage ; DNA Repair ; Humans ; Phosphorylation ; Poly (ADP-Ribose) Polymerase-1/metabolism ; Poly(ADP-ribose) Polymerases/metabolism ; Proto-Oncogene Proteins/metabolism ; RNA/metabolism |
| Chemical Substances | Cell Cycle Proteins ; Proto-Oncogene Proteins ; RNA (63231-63-0) ; DNA (9007-49-2) ; PARP1 protein, human (EC 2.4.2.30) ; PARP10 protein, human (EC 2.4.2.30) ; PARP2 protein, human (EC 2.4.2.30) ; PARP3 protein, human (EC 2.4.2.30) ; Poly (ADP-Ribose) Polymerase-1 (EC 2.4.2.30) ; Poly(ADP-ribose) Polymerases (EC 2.4.2.30) |
| Language | English |
| Publishing date | 2021-06-03 |
| Publishing country | Netherlands |
| Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Review |
| ZDB-ID | 2071608-4 |
| ISSN | 1568-7856 ; 1568-7864 |
| ISSN (online) | 1568-7856 |
| ISSN | 1568-7864 |
| DOI | 10.1016/j.dnarep.2021.103144 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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