Repair DNA polymerase X

UniProtKB accession:  P42494

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Error-prone polymerase lacking a proofreading 3'-5' exonuclease which catalyzes the gap-filling reaction during the DNA repair process (PubMed:11685239, PubMed:28245220). Specifically binds intermediates in the single-nucleotide base-excision repair process (PubMed:12595253). Also catalyzes DNA polymerization with low nucleotide-insertion fidelity (PubMed:24617852). Probably acts as a strategic DNA mutase, which gives rise to a rapid emergence of variants (PubMed:11685239). Generates mismatched G-G pairs, in that case, the polymerase first binds the deoxynucleotide followed by mismatch formation (PubMed:24617852). Together with the viral DNA ligase, fills the single nucleotide gaps generated by the AP endonuclease (Probable). Binds DNA with high affinity via the helix alphaE (PubMed:24617852).