Cloning and analysis of the Kluyveromyces lactis TRP1 gene: a chromosomal locus flanked by genes encoding inorganic pyrophosphatase and histone H3

Michael J.R. Stark, Jonathan S. Milner

    Research output: Contribution to journalArticle

    77 Citations (Scopus)

    Abstract

    The TRP1 gene of the yeast Kluyveromyces lactis has been cloned from a genomic library by complementation of the Saccharomyces cerevisiae trp1-289 mutation. The gene was located within the clone by transposon mutagenesis and the coding region identified by DNA sequencing. This has indicated that K. lactis TRP1 encodes a 210-amino acid polypeptide which shows 53% identity to the homologous S. cerevisiae protein. The K. lactis TRP1 gene has been disrupted by substituting the S. cerevisiae URA3 gene for a large part of the TRP1 coding sequence. Replacement of the chromosomal TRP1 locus with this construction has enabled the production of non-reverting trp1- strains of K. lactis, while a genetic analysis of the disrupted allele confirmed that the TRP1 gene had been cloned. DNA sequencing has also shown that the K. lactis TRP1 sequence is flanked by genes encoding inorganic pyrophosphatase and histone H3, which we have designated IPP and HHT1 respectively. Hybridization studies have shown that in common with S. cerevisiae, K. lactis has two copies of the histone H3 gene. Each H3 gene is closely linked to a gene encoding histone H4 and in both yeast species the IPP gene is tightly linked to one of the histone gene pairs.

    Original languageEnglish
    Pages (from-to)35-50
    Number of pages16
    JournalYeast
    Volume5
    Issue number1
    DOIs
    Publication statusPublished - 1 Jan 1989

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    Inorganic Pyrophosphatase
    Kluyveromyces
    Gene encoding
    Cloning
    Histones
    Organism Cloning
    Genes
    Yeast
    Saccharomyces cerevisiae
    DNA Sequence Analysis
    DNA
    Saccharomyces cerevisiae Proteins
    Yeasts
    Mutagenesis
    Genomic Library
    Polypeptides
    Amino acids
    Proteins

    Cite this

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    abstract = "The TRP1 gene of the yeast Kluyveromyces lactis has been cloned from a genomic library by complementation of the Saccharomyces cerevisiae trp1-289 mutation. The gene was located within the clone by transposon mutagenesis and the coding region identified by DNA sequencing. This has indicated that K. lactis TRP1 encodes a 210-amino acid polypeptide which shows 53{\%} identity to the homologous S. cerevisiae protein. The K. lactis TRP1 gene has been disrupted by substituting the S. cerevisiae URA3 gene for a large part of the TRP1 coding sequence. Replacement of the chromosomal TRP1 locus with this construction has enabled the production of non-reverting trp1- strains of K. lactis, while a genetic analysis of the disrupted allele confirmed that the TRP1 gene had been cloned. DNA sequencing has also shown that the K. lactis TRP1 sequence is flanked by genes encoding inorganic pyrophosphatase and histone H3, which we have designated IPP and HHT1 respectively. Hybridization studies have shown that in common with S. cerevisiae, K. lactis has two copies of the histone H3 gene. Each H3 gene is closely linked to a gene encoding histone H4 and in both yeast species the IPP gene is tightly linked to one of the histone gene pairs.",
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    Cloning and analysis of the Kluyveromyces lactis TRP1 gene : a chromosomal locus flanked by genes encoding inorganic pyrophosphatase and histone H3. / Stark, Michael J.R.; Milner, Jonathan S.

    In: Yeast, Vol. 5, No. 1, 01.01.1989, p. 35-50.

    Research output: Contribution to journalArticle

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