[Eukaryotic DNA polymerases].
Knowledge about eukaryotic DNA polymerases has increased considerably during recent years. Much have been learnt about both the structures and the functions of "classical" DNA polymerases alpha, beta, delta, epsilon and gamma. New DNA polymerases that possess very unusual functions have been identified. They are able to perform translesional synthesis, take part in somatic hypermutation and prevent some cancers. Much attention has also been devoted to the role of 3'-->5' exonuclease activity in the accuracy of DNA synthesis. On the other hand, it have been shown that there are also negative aspects of the activity of DNA polymerases. Lack of some DNA polymerases or even their altered functions may lead to carcinogenesis and accelerate the process of ageing.
Czechowska
Agnieszka
A
Department of Molecular Genetics, University of Lodz, 12/16 Banacha St., 90-237 Lodz, Poland.
Błasiak
Janusz
J
D000818:Animals; D016922:Cellular Senescence / Q000502:physiology; D004260:DNA Repair; D004261:DNA Replication; D004259:DNA-Directed DNA Polymerase / Q000378:metabolism*; D005057:Eukaryotic Cells / Q000201:enzymology*; D006801:Humans
D004259:DNA-Directed DNA Polymerase