## Abstract The recent finding of a role for the __recA__ gene in DNA replication restart does not negate previous data showing the existence of __recA__βdependent recombinational DNA repair, which occurs when there are two DNA duplexes present, as in the case for __recA__βdependent excision repair
Human DNA repair systems: An overview
β Scribed by Zhe Yu; Jian Chen; Barry N. Ford; Moyra E. Brackley; Barry W. Glickman
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 116 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0893-6692
No coin nor oath required. For personal study only.
β¦ Synopsis
DNA repair systems act to maintain genome integrity in the face of replication errors, environmental insults, and the cumulative effects of age. More than 70 human genes directly involved in the five major pathways of DNA repair have been described, including chromosomal location and cDNA sequence. However, a great deal of information as to the precise functions of these genes and their role in human health is still lacking.
Hence, we summarize what is known about these genes and their contra part in bacterial, yeast, and rodent systems and discuss their involvement in human disease. While some associations are already well understood, it is clear that additional diseases will be found which are linked to DNA repair defects or deficiencies.
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## Abstract DNA mismatch repair (MMR) is one of the several enzyme systems involved in DNA homeostasis. DNA MMR is involved in the repair of specific types of errors that occur during new DNA synthesis; loss of this system leads to an accelerated accumulation of potential mutations, and predisposes