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    J Gen Microbiol. 1992 May;138(5):1011-7.

    A dominant mutation in the gene for the Nag repressor of Escherichia coli that renders the nag regulon uninducible.

    Source

    Institut de Biologie Physico-chimique (URA1139), Paris, France.

    Abstract

    The gene nagC encodes the repressor for the nag regulon. A point mutation within the gene, which confers a super-repressor phenotype and makes the repressor insensitive to the inducer, N-acetylglucosamine 6-phosphate, has been characterized. The mutation is semi-dominant since heterozygous diploids have reduced growth rates on glucosamine and N-acetylglucosamine compared to the wild-type strain.

    PMID:
    1645125
    [PubMed - indexed for MEDLINE]
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