Absence of strand-specific repair of cyclobutane pyrimidine dimers in active genes in Drosophila melanogaster Kccells

Autor: de Cock, J.G.R., Klink, E.C., Lohman, P.H.M., Eeken, J.C.J.
Zdroj: Mutation Research/DNA Repair; August 1992, Vol. 274 Issue: 2 p85-92, 8p
Abstrakt: Strand-specific excision repair of UV-induced cyclobutane pyrimidine dimers was investigated in three genes: Gart, Notchand whitein the permanent Kccell line derived from wild-type Drosophila melanogasterembryonic cells. In this cell line Gartand Notchare transcriptionally active, whereas whiteis not expressed. Cells were irradiated with 10 or 15 J/m2ultraviolet (UV) light (predominantly 254 nm). In all three genes, cyclobutane pyrimidine dimers were removed from the non-transcribed strand at the same rate and to the same extent as from the transcribed strand, indicating the absence of strand-specific repair in permanent Drosophila embryonic cell lines.
Databáze: Supplemental Index