Genetic control of plasmid DNA double-strand gap repair in yeast, Saccharomyces cerevisiae.
The repair of double-strand gaps (DSGs) in the plasmid DNA of radiosensitive mutants of Saccharomyces cerevisiae has been analyzed. The proportion of repair events that resulted in complete plasmid DNA DSG recovery was close to 100% in Rad+ cells. Mutation rad55 does not influence the efficiency and preciseness of DSG repair. The mutant rad57, which is capable of recombinational DNA DSB repair, resulted in no DSG recovery. Mutation rad53 substantially inhibits the efficiency of DSG repair but does not influence the precision of repair. Plasmid DNA DSG repair is completely blocked by mutations rad50 and rad54.
Glaser
V M
VM
Department of Genetics, Moscow State University, USSR.
Glasunov
A V
AV
Tevzadze
G G
GG
Perera
J R
JR
Shestakov
S V
SV
D004260:DNA Repair; D004271:DNA, Fungal / Q000235:genetics / Q000528:radiation effects; D004586:Electrophoresis; D005838:Genotype; D009154:Mutation; D010957:Plasmids; D011995:Recombination, Genetic; D012441:Saccharomyces cerevisiae / Q000235:genetics*; D014170:Transformation, Genetic
D004271:DNA, Fungal