{"symbol":"XK","synonyms":["KX","NAC","X1K","MCLDS","XKR1","NA"],"name":"X-linked Kx blood group","description":"This locus controls the synthesis of the Kell blood group \u0027precursor substance\u0027 (Kx). Mutations in this gene have been associated with McLeod syndrome, an X-linked, recessive disorder characterized by abnormalities in the neuromuscular and hematopoietic systems. The encoded protein has structural characteristics of prokaryotic and eukaryotic membrane transport proteins. [provided by RefSeq, Jul 2008]","ncbiEntrezGeneId":7504,"ncbiEntrezGeneUrl":"http://www.ncbi.nlm.nih.gov/gene/7504","proteins":[{"symbol":"XK_HUMAN","href":"/api/1.0/protein/XK_HUMAN"}],"hgncRootFamilies":[{"name":"Blood group antigens","href":"/api/1.0/gene_family/Blood+group+antigens"}]}