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The Xq22 region of the human X chromosome contains genes for a number of inherited disorders. Sixty-nine yeast artificial chromosome clones have been isolated and assembled into a 6.5-Mb contig that contains 33 DNA markers localized to this region. This contig extends distally from DXS366 to beyond DXS87 and includes the genes involved in X-linked agammaglobulinemia (btk), Fabry disease (GLA), and Pelizaeus-Merzbacher disease (PLP). The order of markers in this contig is consistent with the known genetic and physical mapping information of Xq22. This cloned material provides a source from which to isolate other genes located in this part of the X chromosome.

Original publication




Journal article



Publication Date





42 - 47


Adult, Agammaglobulinemia, Chromosome Walking, Chromosomes, Artificial, Yeast, Diffuse Cerebral Sclerosis of Schilder, Fabry Disease, Gene Library, Genetic Markers, Humans, X Chromosome