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Protein FULL name:Catalytic subunit of DNA polymerase zeta, involved in translesion synthesis during post-replication repair; required for mutagenesis induced by DNA damage; involved in double-strand break repairRev3p (Saccharomyces cerevisiae) is product of expression of REV3 gene. Rev3p is involved in: TLS in Saccharomyces cerevisiae Keywords: FUNCTION: Nonessential DNA polymerase. Required for DNA damage induced mutagenesis. Involved in DNA repair, mitochondrial DNA repair and translesion synthesis. Translesion synthesis in S.cerevisiae may use a specialized DNA polymerase that is not required for other DNA replicative processes. Has a role in the bypass of abasic (AP) sites. Highly inefficient in incorporating nucleotides opposite the AP site, but efficiently extends from nucleotides, particularly an A, inserted opposite the lesion. CATALYTIC ACTIVITY: Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1). BIOPHYSICOCHEMICAL PROPERTIES: Kinetic parameters: KM=543 uM for dGTP (insertion opposite abasic site); KM=81 uM for dATP (insertion opposite abasic site); KM=125 uM for dTTP (insertion opposite abasic site); KM=113 uM for dCTP (insertion opposite abasic site); KM=0.11 uM for dGTP (insertion opposite C); KM=267 uM for dATP (insertion opposite C); KM=552 uM for dTTP (insertion opposite C); KM=321 uM for dCTP (insertion opposite C); KM=344 uM for dGTP (insertion opposite G); KM=118 uM for dATP (insertion opposite G); KM=428 uM for dTTP (insertion opposite G); KM=0.14 uM for dCTP (insertion opposite G); KM=6.5 uM for dTTP (extension from G, A, T, or C opposite abasic site); KM=2.3 uM for dTTP (extension from G, A, T, or C opposite abasic site); KM=49 uM for dTTP (extension from G, A, T, or C opposite abasic site); KM=21 uM for dTTP (extension from G, A, T, or C opposite abasic site); KM=0.35 uM for dTTP (extension from G, A, T, or C opposite C); KM=2.3 uM for dTTP (extension from G, A, T, or C opposite C); KM=15 uM for dTTP (extension from G, A, T, or C opposite C); KM=26 uM for dTTP (extension from G, A, T, or C opposite C); KM=6.9 uM for dTTP (extension from G, A, T, or C opposite G); KM=2.1 uM for dTTP (extension from G, A, T, or C opposite G); KM=28.8 uM for dTTP (extension from G, A, T, or C opposite G); KM=0.23 uM for dTTP (extension from G, A, T, or C opposite G); SUBUNIT: Forms DNA polymerase zeta with REV7. INTERACTION: P38927:REV7; NbExp=1; IntAct=EBI-6155, EBI-14960; SUBCELLULAR LOCATION: Mitochondrion. Nucleus (Potential). SIMILARITY: Belongs to the DNA polymerase type-B family.
Links to other databases:
Protein sequence:
Rev3p (Saccharomyces cerevisiae) belongs to following protein families: References:
Last modification of this entry: Oct. 15, 2010. Add your own comment! There is no comment yet. |
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