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    Proc Natl Acad Sci U S A. 1975 Jan;72(1):263-7.

    Tay-Sachs' and Sandhoff's diseases: the assignment of genes for hexosaminidase A and B to individual human chromosomes.

    Abstract

    The techniques of somatic cell genetics have been used to establish the linkage relationships of loci coding for two forms (A and B) of hexosaminidase (EC 3.2.1.30; 2-acetamido-2-deoxy-beta-D-glucoside acetamidodeoxyglucohydrolase) and to determine whether a structural relationship exists between these forms. In a series of human-mouse hybrid cell lines, hexosaminidase A and B segregated independently. Our results and those reported by other investigators are used to analyze the proposed structural models for hexosaminidase. We have also been able to establish a syntenic relationship between the gene locus responsible for the expression of hexosaminidase A and those responsible for mannosephosphate isomerase and pyruvate kinase-3 and to assign the gene for hexosaminidase B to chromosome 5 in man. There is thus a linkage between specific human autosomes and enzymes implicated in the production of lipid storage diseases.

    PMID:
    1054503
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC432284
    Free PMC Article

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