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  • 1
    Electronic Resource
    Electronic Resource
    Isolation and characterization of additional genes influencing resistance to various mutagens in the yeast Saccharomyces cerevisiae (1992)
    Springer
    Current genetics 21 (1992), S. 319-324 
    Details
    ISSN: 1432-0983
    Keywords: Multi-copy plasmid ; Hyper-resistance ; 4-NQO ; MNNG ; Triaziquone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Screening of a multi-copy vector-based yeast genomic library in haploid cells of wild-type Saccharomyces cerevisiae yielded transformants hyper-resistant to various chemical mutagens. Genetical analysis of the yeast insert DNAs revealed three genes SNG1, SNQ2, and SNQ3 that confer the phenotype hyper-resistance to MNNG, to 4-NQO and triaziquone, and to mutagens 4-NQO, MNNG, and triaziquone, respectively. Integration of the gene disruption-constructs into the haploid yeast genome yielded viable null-mutants with a mutagen-sensitive phenotype. Thus, copy number of these non-essential yeast genes determines the relative resistance to certain chemical mutagens, with zero copies yielding a phenotype of mutagen sensitivity and multiple copies one of mutagen hyper-resistance, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00351689
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  • 2
    Electronic Resource
    Electronic Resource
    Vector YFRp1 allows transformant selection in Saccharomyces cerevisiae via resistance to formaldehyde (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Yeast 9 (1993), S. 783-785 
    Details
    ISSN: 0749-503X
    Keywords: Multicopy vector ; yeast ; formaldehyde ; hyper-resistance ; transformant selection ; vector stability ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Formaldehyde (FA), a chemical with low toxic potential, is used as sole selective agent for transformation in the yeast Saccharomyces cerevisiae. Neither stable auxotrophic markers in recipient cells nor defined synthetic media are needed when multicopy vector YFRp1, containing the yeast SFA gene, is employed for yeast transformation. The SFA gene gives stability to the vector and its yeast (and other) passenger genes when transformants are propagated in complex media supplemented with 3-5 mM-FA. Use of inexpensive FA and non-synthetic, undefined media will lower the cost of yeast transformant propagation considerably and thus make feasible large-volume industrial application of transformants containing YFRp1 derivatives.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/yea.320090712
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  • 3
    Electronic Resource
    Electronic Resource
    Sequence analysis of a 5·6 kb fragment of chromosome II from Saccharomyces cerevisiae reveals two new open reading frames next to CDC28 (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Yeast 11 (1995), S. 455-458 
    Details
    ISSN: 0749-503X
    Keywords: Saccharomyces cerevisiae ; chromosome II sequence ; CDC28 ; SUR1 homolog ; putative surface protein ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The sequence of a 5653 bp DNA fragment of the right arm of chromosome II of Saccharomyces cerevisiae contains two unknown open reading frames (YBR1212 and YBR1213) next to gene CDC28. Gene disruption reveals both putative genes as non-essential. ORF YBR1212 encodes a predicted protein with 71% similarity and 65% identity (total polypeptide of 376 aa) with the 378 aa Sur1 protein of S. cerevisiae, while the putative product of ORF YBR1213, which is strongly expressed, has 28% identity with a Lactococcus lactis-secreted 45 kDa protein and 24% identity with the Saccharomyces cerevisiae AGA1 gene product. The total sequence of the fragment has been submitted to the EMBL databank (accession number X80224).
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/yea.320110508
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    Paper (German National Licenses)
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