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The last step in the biosynthesis of Le(x) antigen, the addition of a fucose to precursor polysaccharides, can be catalyzed by different alpha-3-fucosyltransferases. We localized the gene (FUT4) encoding myeloid alpha-3-fucosyltransferase by PCR assay using panels of somatic cell and radiation hybrids which retain different rearrangements of chromosome 11. FUT4 was assigned to chromosome band 11q21 between D11S388 and D11S919.
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Reguigne et al. (2008) studied this question.
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