6-azauracil sensitivity assay for yeast.

Tansey WP
CSH Protoc. 2006 2006 (7)

PMID: 22484669 · DOI:10.1101/pdb.prot4613

INTRODUCTIONTreatment of yeast with 6-Azauracil (6AU) leads to a reduction of intracellular GTP levels. The reduction in GTP levels is not itself lethal, but can block yeast growth when combined with mutations that affect transcriptional elongation. 6AU sensitivity thus can be used as a crude assay to test for mutations that affect transcriptional elongation. The assay described here requires growing saturated cultures of yeast, counting, and spotting serial dilutions of yeast on both CSM and CSM + 6AU plates.

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