The essential DNA polymerases delta and epsilon are involved in repair of UV-damaged DNA in the yeast Saccharomyces cerevisiae

• Autorzy: Halas A. , Policinska Z. , Baranowska H. , Jachymczyk W.J.
• Języki publikacji: EN

Abstrakty

EN

We have studied the ability of yeast DNA polymerases to carry out repair of lesions caused by UV irradiation in Saccharomyces cerevisiae. By the analysis of postirradiation relative molecular mass changes in cellular DNA of different DNA polymerases mutant strains, it was established that mutations in DNA polymerases δ and ε showed accumulation of single-strand breaks indicating defective repair. Mutations in other DNA polymerase genes exhibited no defects in DNA repair. Thus, the data obtained suggest that DNA polymerases δ and ε are both necessary for DNA replication and for repair of lesions caused by UV irradiation. The results are discussed in the light of current concepts concerning the specifity of DNA polymerases in DNA repair.

Słowa kluczowe

EN

mass change; yeast; DNA polymerase; DNA replication; cellular DNA; ability; ultraviolet radiation; Saccharomyces cerevisiae

• Wydawca: -
• Czasopismo: Acta Biochimica Polonica
• Rocznik: 1999
• Tom: 46
• Numer: 2
• Opis fizyczny: p.289-298,fig.

Twórcy

autor

Halas A.

• Polish Academy of Sciences, A.Pawinskiego 5a, 02-106 Warsaw, Poland

autor

Policinska Z.

autor

Baranowska H.

autor

Jachymczyk W.J.

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