Reference: Jha B, et al. (1998) A rapid method to monitor repair and mis-repair of DNA double-strand breaks by using cell extracts of the yeast Saccharomyces cerevisiae. Curr Genet 33(1):1-3

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Abstract


We present a rapid in vitro method to scan the repair of DNA double-strand breaks (DSBs). A DSB was introduced at the EcoRI site within the lacZ gene of the plasmid pUC18 and the plasmid was exposed to cellular extracts from a wild-type repair-competent (RAD) and a mutant (rad52Delta) strain of the yeast Saccharomyces cerevisiae. The fidelity of rejoining was determined by the expression of the lacZ gene after bacterial transformation with the treated plasmid. A cellular extract from the yeast S. cerevisiae was found to be capable of rejoining DNA DSBs. Breaks at the EcoRI site were rejoined by extracts from both wild-type and mutant strains to form circular plasmids with almost equal efficiency. However, the fidelity of rejoining was lower for the rad52Delta extract than for normal wild-type.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Jha B, Ahne F, Kistler M, Klaus C, Eckardt-Schupp F
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