| Literature DB >> 26996833 |
Susana M Cerritelli1, Robert J Crouch2.
Abstract
The abundance of ribonucleotides in DNA remained undetected until recently because they are efficiently removed by the ribonucleotide excision repair (RER) pathway, a process similar to Okazaki fragment (OF) processing after incision by Ribonuclease H2 (RNase H2). All DNA polymerases incorporate ribonucleotides during DNA synthesis. How many, when, and why they are incorporated has been the focus of intense work during recent years by many labs. In this review, we discuss recent advances in ribonucleotide incorporation by eukaryotic DNA polymerases that suggest an evolutionarily conserved role for ribonucleotides in DNA. We also review the data that indicate that removal of ribonucleotides has an important role in maintaining genome stability. Published by Elsevier Ltd.Entities:
Keywords: Aicardi–Goutières syndrome; DNA polymerase; RER; RNase H2; steric gate; systemic lupus erythematosus
Mesh:
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Year: 2016 PMID: 26996833 PMCID: PMC4851601 DOI: 10.1016/j.tibs.2016.02.005
Source DB: PubMed Journal: Trends Biochem Sci ISSN: 0968-0004 Impact factor: 13.807