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    Biochim Biophys Acta. 1991 Aug 27;1090(1):81-5.

    Mammalian mRNAs encoding protein closely related to ubiquitin-conjugating enzyme encoded by yeast DNA repair gene RAD6.

    Source

    Department of Microbiology, University of Minnesota, Medical School, Minneapolis 55113.

    Abstract

    A clone of about 1 kb has been isolated from a human brain cDNA library. The clone possesses a 151 amino acid open reading frame that exhibits 72% amino acid identity with the E2 ubiquitin-conjugating enzyme encoded by the RAD6 gene of Saccharomyces cerevisiae. A 90% amino acid identity was observed in a central sequence surrounding a cysteine, which most likely contributes the sulfhydryl group involved in the formation of the ubiquitin-E2 thiolester linkage. Northern hybridization analyses have identified a poly(A)-containing mRNA of about 1 kb encoding the E2-like sequence in human CEM lymphoblastoid and HeLa cells, Novikoff rat hepatoma cells and S49 mouse leukemia cells. Southern hybridization analyses indicate the presence of a single gene encoding this sequence in both human cell lines, but of two or more related genes in the rodent cell lines.

    PMID:
    1883845
    [PubMed - indexed for MEDLINE]

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