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  • 1
    Electronic Resource
    Electronic Resource
    Overexpression of ADH1 confers hyper-resistance to formaldehyde in Saccharomyces cerevisiae (1996)
    Springer
    Current genetics 29 (1996), S. 437-440 
    Details
    ISSN: 1432-0983
    Keywords: Key words Yeast ; Formaldehyde ; Hyper-resistance ; Alcohol dehydrogenase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  In an attempt to clone genes involved in resistance to formaldehyde we have screened a genomic library based on the episomal plasmid YEp24 for the ability to increase resistance to formaldehyde in a wild-type strain. In addition to SFA, the gene encoding the formaldehyde dehydrogenase Adh5, an enzyme most potent in formaldehyde de-toxification, we isolated a second plasmid that conferred a less pronounced but significant hyper-resistance to formaldehyde. Its passenger DNA contained the gene ADH1, encoding alcohol dehydrogenase 1 (EC 1.1.1.1), which could be shown to be responsible for the observed hyper-resistance phenotype. Construction of an adh1-0 mutant revealed that yeast lacking a functional ADH1 gene is sensitive to formaldehyde. While glutathione is essential for Adh5-mediated formaldehyde de-toxification, Adh1 reduced formaldehyde best in the absence of this thiol compound. Evidence is presented that formaldehyde is a substrate for Adh1 in vivo and in vitro and that its cellular de-toxification employs a reductive step that may yield methanol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002940050068
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Overexpression ofADH1 confers hyper-resistance to formaldehyde inSaccharomyces cerevisiae (1996)
    Springer
    Current genetics 29 (1996), S. 437-440 
    Details
    ISSN: 1432-0983
    Keywords: Yeast ; Formaldehyde ; Hyper-resistance ; Alcohol dehydrogenase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In an attempt to clone genes involved in resistance to formaldehyde we have screened a genomic library based on the episomal plasmid YEp24 for the ability to increase resistance to formaldehyde in a wild-type strain. In addition toSFA, the gene encoding the formaldehyde dehydrogenase Adh5, an enzyme most potent in formaldehyde de-toxification, we isolated a second plasmid that conferred a less pronounced but significant hyper-resistance to formaldehyde. Its passenger DNA contained the geneADH1, encoding alcohol dehydrogenase 1 (EC 1.1.1.1), which could be shown to be responsible for the observed hyper-resistance phenotype. Construction of anadh1-0 mutant revealed that yeast lacking a functionalADH1 gene is sensitive to formaldehyde. While glutathione is essential for Adh5-mediated formaldehyde de-toxification, Adh1 reduced formaldehyde best in the absence of this thiol compound. Evidence is presented that formaldehyde is a substrate for Adh1 in vivo and in vitro and that its cellular de-toxification employs a reductive step that may yield methanol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02221511
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Rapid and simple isolation of DNA from agarose gels (1992)
    Springer
    Current genetics 22 (1992), S. 83-84 
    Details
    ISSN: 1432-0983
    Keywords: DNA isolation ; Agarose gels ; Molecular cloning
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We present a simple method for the isolation of DNA from agarose gels that is economic, fast, and independent of electrical equipment. DNA fragments of up to 6 kb can be easily extracted within 5 min using a disposable plastic syringe and filter paper. Total extraction of DNA fragments between 10 and 20 kb in size is achieved by concentrating the DNA flushed from the gel in a DNA-binding column.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00351746
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    A ten-minute protocol for transforming Saccharomyces cerevisiae by electroporation (1992)
    Springer
    Current genetics 22 (1992), S. 335-336 
    Details
    ISSN: 1432-0983
    Keywords: Yeast ; Rapid transformation ; Cell age
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We present a simplified and rapid method for the transformation of yeast cells by electroporation. Stationary cells, scraped off the agar of Petri dish cultures stored in the refrigerator for up to 6 weeks, are suspended in sorbitol buffer, spun down by gentle centrifugation, transferred into the electroporation cuvette, and immediately subjected to transformation via electroporation. Transformation efficiency of this 10-min method, which does not require the preparation of cell cultures, is about 10% of the hitherto best performing transformation procedure using cells of defined growth phase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00317931
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Overexpression of the SNQ3/YAP1 gene confers hyper-resistance to nitrosoguanidine in Saccharomyces cerevisiae via a glutathione-independent mechanism (1994)
    Springer
    Current genetics 25 (1994), S. 469-471 
    Details
    ISSN: 1432-0983
    Keywords: Yeast ; GSH ; DNA alkylation ; MNNG
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The MNNG hyper-resistance of yeast transformants containing multiple copies of the SNQ3/YAP1 yeast gene is not caused by lowered MNNG activation due to depleted pools of glutathione. On the contrary, the SNQ3/YAP1-encoded protein stimulates production of GSH, apparently by promoter activation due to the AP-1 recognition element. Expression of at least one further gene, encoding a protein with a strong detoxifying activity, must also be stimulated to explain the MNNG hyper-resistance phenotype.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00351788
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    Paper (German National Licenses)
    Fulltext
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