Mating type specific chromosome conformation in Saccharomyces cerevisiae
نویسندگان
چکیده
منابع مشابه
Mating-type gene switching in Saccharomyces cerevisiae.
The study of yeast mating-type (MAT) gene switching has provided insights into several aspects of the regulation of gene expression. MAT switching is accomplished by a highly programmed site-specific homologous recombination event in which mating-type-specific sequences at MAT are replaced by alternative DNA sequences copied from one of two unexpressed donors. The mating-type system has also pr...
متن کاملSaccharomyces cerevisiae donor preference during mating-type switching is dependent on chromosome architecture and organization.
Saccharomyces mating-type (MAT) switching occurs by gene conversion using one of two donors, HMLalpha and HMRa, located near the ends of the same chromosome. MATa cells preferentially choose HMLalpha, a decision that depends on the recombination enhancer (RE) that controls recombination along the left arm of chromosome III (III-L). When RE is inactive, the two chromosome arms constitute separat...
متن کاملMating-type genes and MAT switching in Saccharomyces cerevisiae.
Mating type in Saccharomyces cerevisiae is determined by two nonhomologous alleles, MATa and MATα. These sequences encode regulators of the two different haploid mating types and of the diploids formed by their conjugation. Analysis of the MATa1, MATα1, and MATα2 alleles provided one of the earliest models of cell-type specification by transcriptional activators and repressors. Remarkably, homo...
متن کاملActivation of mating type genes by transposition in Saccharomyces cerevisiae.
Yeast Saccharomyces cerevisiae may express an a or alpha mating type. These cells types may be interconverted as a consequence of heritable genetic alteractions at the mating type locus (MAT). According to the more general controlling element model [Oshima, U. & Takano, I. (1971) Genetics 67, 327--335] and the specific cassette model [Hicks, J., Strathern, J. & Herskowitz, I. (1977) in DNA Inse...
متن کاملAlpha mating type-specific expression of mutations leading to constitutive agglutinability in Saccharomyces cerevisiae.
Two mutants of Saccharomyces cerevisiae have been isolated and characterized. The mutants were constitutively agglutinable at 36 degrees C, the temperature at which wild-type cells agglutinate only after induction by mating pheromone. The mutant cells had other properties specific for the normal alpha cell type, i.e., conjugation with a cells, response to a mating pheromone, and production of a...
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ژورنال
عنوان ژورنال: Epigenetics & Chromatin
سال: 2013
ISSN: 1756-8935
DOI: 10.1186/1756-8935-6-s1-p92