DNA polymerase zeta (pol ζ) in higher eukaryotes
| Autor: | Birgitte Ø. Wittschieben, John P. Wittschieben, Richard D. Wood, Gregory N. Gan |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
DNA Repair
DNA polymerase DNA repair DNA polymerase II DNA-Directed DNA Polymerase Saccharomyces cerevisiae Models Biological DNA polymerase delta Animals Humans Crossing Over Genetic Molecular Biology Recombination Genetic Genetics biology DNA replication Nuclear Proteins Proteins Cell Biology Processivity Nucleotidyltransferases Cell biology DNA-Binding Proteins Eukaryotic Cells Mad2 Proteins biology.protein REV1 DNA polymerase mu |
| Zdroj: | Cell Research. 18:174-183 |
| ISSN: | 1748-7838 1001-0602 |
| DOI: | 10.1038/cr.2007.117 |
| Popis: | Most current knowledge about DNA polymerase zeta (pol zeta) comes from studies of the enzyme in the budding yeast Saccharomyces cerevisiae, where pol zeta consists of a complex of the catalytic subunit Rev3 with Rev7, which associates with Rev1. Most spontaneous and induced mutagenesis in yeast is dependent on these gene products, and yeast pol zeta can mediate translesion DNA synthesis past some adducts in DNA templates. Study of the homologous gene products in higher eukaryotes is in a relatively early stage, but additional functions for the eukaryotic proteins are already apparent. Suppression of vertebrate REV3L function not only reduces induced point mutagenesis but also causes larger-scale genome instability by raising the frequency of spontaneous chromosome translocations. Disruption of Rev3L function is tolerated in Drosophila, Arabidopsis, and in vertebrate cell lines under some conditions, but is incompatible with mouse embryonic development. Functions for REV3L and REV7(MAD2B) in higher eukaryotes have been suggested not only in translesion DNA synthesis but also in some forms of homologous recombination, repair of interstrand DNA crosslinks, somatic hypermutation of immunoglobulin genes and cell-cycle control. This review discusses recent developments in these areas. |
| Databáze: | OpenAIRE |
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