Reference: Nielsen O, et al. (1996) The Schizosaccharomyces pombe map1 gene encodes an SRF/MCM1-related protein required for P-cell specific gene expression. Mol Gen Genet 253(3):387-92

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Abstract


Cells of Schizosaccharomyces pombe undergo mating and meiosis when starved for a nitrogen source. In this process a P and and M cell first mate to generate a diploid zygote, which subsequently enters meiosis and sporulates. The P mating type is controlled by the mat1-Pc gene at the mating type locus, together with a gene called map1. We show that these two functions are required for expression of the P-specific gene map3. We have cloned the map1 gene and show that it encodes a putative MADS-box containing transcription factor related to mammalian Serum Response Factor (SRF) and Saccharomyces cerevisiae MCM1. The Mat1-Pc protein contains a motif characteristic for proteins that interact with MADS-box factors, suggesting that Mat-Pc and Map1 may form a heterodimer that activates the P-specific map3 gene.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Nielsen O, Friis T, Kjaerulff S
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