Phenotypic effects of membrane protein overexpression in Saccharomyces cerevisiae.

ABSTRACT: Large-scale protein overexpression phenotype screens provide an important complement to the more common gene knockout screens. Here, we have targeted the so far poorly understood Saccharomyces cerevisiae membrane proteome and report growth phenotypes for a strain collection overexpressing approximately 600 C-terminally tagged integral membrane proteins grown both under normal and three different stress conditions. Although overexpression of most membrane proteins reduce the growth rate in synthetic defined medium, we identify a large number of proteins that, when overexpressed, confer specific resistance to various stress conditions. Our data suggest that regulation of glycosylphosphatidylinositol anchor biosynthesis and the Na(+)/K(+) homeostasis system constitute major downstream targets

SUBMITTER: Osterberg M 

PROVIDER: S-EPMC1544056 | biostudies-literature | 2006 Jul

REPOSITORIES: biostudies-literature