Osmo-stress-induced changes in neutral trehalase activity of the fission yeast Schizosaccharomyces pombe
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چکیده
منابع مشابه
A role for calcium in the regulation of neutral trehalase activity in the fission yeast Schizosaccharomyces pombe.
Neutral trehalases mobilize trehalose accumulated by fungal cells as a protective and storage carbohydrate. A structural feature of these enzymes is the presence of an EF-like motif similar to that shown by many Ca2+-binding proteins. In this study we provide direct evidence for physical binding of Ca2+ to neutral trehalase (Ntp1p) of the fission yeast Schizosaccharomyces pombe, and show that a...
متن کاملCharacterization of mutants devoid of neutral trehalase activity in the fission yeast Schizosaccharomyces pombe: partial protection from heat shock and high-salt stress.
Exposure of cells of Schizosaccharomyces pombe to heat shock or osmotic upshift results in an increased level of neutral trehalase activity, which is responsible for hydrolysis of intracellular trehalose. We constructed S. pombe mutants lacking neutral trehalase activity by gene replacement at the newly defined ntp1+ locus. Analysis of these mutants revealed that a twofold increase in trehalose...
متن کاملFeatured Organism: Schizosaccharomyces pombe, The Fission Yeast
Schizosaccharomyces pombe, the fission yeast, has long been a crucial model for the study of the eukaryote cell cycle. We take a look at this important yeast, whose genome has recently been completed, featuring comments from Valerie Wood, Jürg Bähler, Ramsay McFarlane, Susan Forsburg, Iain Hagan and Paul Nurse on the implications of having the complete sequence and future prospects for pombe ge...
متن کاملRestoration of inositol prototrophy in the fission yeast Schizosaccharomyces pombe.
The biosynthesis of inositol requires only two enzymes, inositol-1-phosphate synthase (encoded by INO1) and an inositol monophosphatase, but the regulation of inositol biosynthesis is under multiple controls and is exquisitely regulated. In the budding yeast Saccharomyces cerevisiae, mutations in any of 26 different genes lead to inositol auxotrophy. The fission yeast Schizosaccharomyces pombe,...
متن کاملAnalysis of centromeric DNA in the fission yeast Schizosaccharomyces pombe.
The Schizosaccharomyces pombe centromere-linked genes, LYS1 and CYH1 on chromosome I and TPS13 and RAN1 on chromosome II, have been isolated. The genetic order of these markers with respect to their centromeres was determined to establish relative directionality on the genetic and physical maps. Chromosome walking toward the centromeres reveals a group of repetitive sequences that occur only in...
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ژورنال
عنوان ژورنال: Biochimica et Biophysica Acta (BBA) - Molecular Cell Research
سال: 1997
ISSN: 0167-4889
DOI: 10.1016/s0167-4889(97)00010-4