SGD Paper 
Whiteway M, et al. (1992) Dominant negative selection of heterologous genes: isolation of Candida albicans genes that interfere with Saccharomyces cerevisiae mating factor-induced cell cycle arrest. Proc Natl Acad Sci U S A 89(20):9410-4
Abstract: We have used a genomic library of Candida albicans to transform Saccharomyces cerevisiae and screened for genes that act similarly to dominant negative mutations by interfering with pheromone-mediated cell cycle arrest. Six different plasmids were identified from 2000 transformants; four have been sequenced. One gene (CZF1) encodes a protein with structural motifs characteristic of a transcription factor. A second gene (CCN1) encodes a cyclin homologue, a third (CRL1) encodes a protein with sequence similarity to GTP-binding proteins of the RHO family, and a fourth (CEK1) encodes a putative kinase of the ERK family. Since CEK1 confers a phenotype similar to that of the structurally related S. cerevisiae gene KSS1 but cannot complement a KSS1 defect, it is evident that dominant negative selection can identify proteins that complementation screens would miss. Because dominant negative mutations exert their influence even in wild-type strain backgrounds, this approach should be a general method for the analysis of complex cellular processes in organisms not amenable to direct genetic analysis.
| Status: Published | Type: Journal Article | PubMed ID: 1409649 |
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