DNA polymerase δ proofreads errors made by DNA polymerase ε
نویسندگان
چکیده
منابع مشابه
Replicative DNA Polymerase δ but Not ε Proofreads Errors in Cis and in Trans
It is now well established that in yeast, and likely most eukaryotic organisms, initial DNA replication of the leading strand is by DNA polymerase ε and of the lagging strand by DNA polymerase δ. However, the role of Pol δ in replication of the leading strand is uncertain. In this work, we use a reporter system in Saccharomyces cerevisiae to measure mutation rates at specific base pairs in orde...
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Translesion DNA synthesis is an important branch of the DNA damage tolerance pathway that assures genomic integrity of living organisms. The mechanisms of DNA polymerase (Pol) switches during lesion bypass are not known. Here, we show that the C-terminal domain of the Pol ζ catalytic subunit interacts with accessory subunits of replicative DNA Pol δ. We also show that, unlike other members of t...
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The balance between exonuclease and polymerase activities promotes DNA synthesis over degradation when nucleotides are correctly added to the new strand by replicative B-family polymerases. Misincorporations shift the balance toward the exonuclease site, and the balance tips back in favor of DNA synthesis when the incorrect nucleotides have been removed. Most B-family DNA polymerases have an ex...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2020
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1917624117