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  • Saccharomyces cerevisiae  (4)
  • 2020-2023
  • 1990-1994  (2)
  • 1985-1989  (2)
  • 1970-1974
  • 1920-1924
  • 1
    Electronic Resource
    Electronic Resource
    Occurrence of thiaminase II inSaccharomyces cerevisiae (1987)
    Springer
    Cellular and molecular life sciences 43 (1987), S. 888-890 
    Details
    ISSN: 1420-9071
    Keywords: Thiaminase ; thiamine ; thiamine antagonist ; Saccharomyces cerevisiae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary It was found that cell-free extracts ofSaccharomyces cerevisiae contain thiaminase II which hydrolyzes thiamine and thiamine analogs. The possible involvement of this enzyme and thiamine-synthesizing enzymes in thiamine production from thiamine antagonists is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01951652
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  • 2
    Electronic Resource
    Electronic Resource
    Identification of a gene conferring resistance to zinc and cadmium ions in the yeast Saccharomyces cerevisiae (1989)
    Springer
    Molecular genetics and genomics 219 (1989), S. 161-167 
    Details
    ISSN: 1617-4623
    Keywords: Saccharomyces cerevisiae ; Heavy metal resistance ; DNA sequence ; Membrane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A DNA fragment conferring resistance to zinc and cadmium ions in the yeast Saccharomyces cerevisiae was isolated from a library of yeast genomic DNA. Its nucleotide sequence revealed the presence of a single open reading frame (ORF; 1326 bp) having the potential to encode a protein of 442 amino acid residues (molecular mass of 48.3 kDa). A frameshift mutation introduced within the ORF abolished resistance to heavy metal ions, indicating the ORF is required for resistance. Therefore, we termed it the ZRC1 (zinc resistance conferring) gene. The deduced amino acid sequence of the gene product predicts a rather hydrophobic protein with six possible membrane-spanning regions. While multiple copies of the ZRC1 gene enable yeast cells to grow in the presence of 40 mM Zn2+, a level at which wild-type cells cannot survive, the disruption of the chromosomal ZRC1 locus, though not a lethal event, makes cells more sensitive to zinc ions than are wild-type cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00261172
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  • 3
    Electronic Resource
    Electronic Resource
    Temperature-sensitive mutants of hsp82 of the budding yeast Saccharomyces cerevisiae (1994)
    Springer
    Molecular genetics and genomics 242 (1994), S. 517-527 
    Details
    ISSN: 1617-4623
    Keywords: Saccharomyces cerevisiae ; HSP82 ; Random in vitro mutagenesis ; Temperature-sensitive mutants
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The budding yeast Saccharomyces cerevisiae has two HSP90-related genes per haploid genome, HSP82 and HSC82. Random mutations were induced in vitro in the HSP82 gene by treatment of the plasmid with hydroxylamine. Four temperature-sensitive (ts) mutants and one simultaneously is and cold-sensitivie (cs) mutant were then selected in a yeast strain in which HSC82 had previously been disrupted. The mutants were found to have single base changes in the coding region, which caused single amino acid substitutions in the HSP82 protein. All of these mutations occurred in amino acid residues that are well conserved among HSP90-related proteins of various species from Escherichia coli to human. Various properties including cell morphology, macromolecular syntheses and thermosensitivity were examined in each mutant at both the permissive and nonpermissive temperatures. The mutations in HSP82 caused pleiotropic effects on these properties although the phenotypes exhibited at the nonpermissive temperature varied among the mutants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00285275
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  • 4
    Electronic Resource
    Electronic Resource
    Phenotypic character of the lipid hydroperoxide-resistant mutant: Positive relationship between flocculation and resistance against lipid hydroperoxide inSaccharomyces cerevisiae (1992)
    Springer
    World journal of microbiology and biotechnology 8 (1992), S. 296-300 
    Details
    ISSN: 1573-0972
    Keywords: Flocculation ; linoleic acid hydroperoxide ; lipid hydroperoxide ; Saccharomyces cerevisiae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract A lipid hydroperoxide-resistant mutant was isolated from a strain ofSaccharomyces cerevisiae. The mutant was resistant to 1.5mm tert-butylhydroperoxide and 1.0mm linoleic acid hydroperoxide. It flocculated in a Ca2+-dependent manner and the resistance against lipid hydroperoxide was suppressed by mannose, which also inhibited flocculation. A positive relationship between the acquirement of, the flocculent phenotype and resistance against lipid hydroperoxide is suggested. A protein with a molecular weight of 33 kDa was found on the surface of the mutant cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01201883
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