Multicopy suppression screen in a Saccharomyces cerevisiae strain lacking the Rab GTPase-activating protein Msb3p.
[No authors listed]
摘要
The yeast proteins, Msb3p and Msb4p, are two Ypt/Rab-specific GTPase-activating proteins sharing redundant functions in exocytosis, organization of the actin cytoskeleton, and budding site selection. To see if Msb3p might play an additional, specific role, we first tested the sensitivities of msb3 and msb4 mutant strains to different drugs and then screened a genomic library for multicopy suppressors of msb3 sensitivity to CdCl(2) or to the calcium channel blocker diltiazem hydrochloride. Three genes (ADH1, RNT1, and SUI1) were found to suppress the CdCl(2) sensitivity of the msb3 strain and three others (YAP6, ZEO1, and SLM1) its diltiazem-HCl sensitivity. The results suggest a possible involvement of Msb3p in calcineurin-mediated signalling.
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基因功能
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原始数据
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文献解读
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