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Mutat Res. 1993 Sep;289(1):97-106.

The mutator mut7-1 of Saccharomyces cerevisiae.

Author information

1
Department of Genetics, University of Alberta, Edmonton, Canada.

Abstract

The mut7-1 mutant of Saccharomyces cerevisiae is a cell-division-cycle mutant, exhibiting temperature-sensitive lethality and enhancement of mutator activity with increases in temperature. The base-sequence alterations in mutants arising in a mut7-1 background differed from the control by there being a higher transversion/transition ratio and by the much increased production of multi-base deletions. The deletions were, in every instance, associated with repeated oligonucleotide sequences (3-8 bases in length), where one of the two sequences was removed during the deletion process. The mutant mut7-1 failed to complement with cdc2, the temperature-sensitive mutant of the locus which encodes DNA polymerase III (delta).

PMID:
7689169
[Indexed for MEDLINE]

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