title: Regional localization of the gene coding for sphingolipid activator protein SAP-1 on human chromosome 10.
abstract: Sphingolipid activator protein SAP-1 is required for the enzymatic hydrolysis of GMI ganglioside and sulfatide. The gene coding for SAP-1 was previously mapped to human chromosome 10 using monospecific antibodies prepared against SAP-1 in synteny analysis of somatic cell hybrids. In this study, we used a cDNA probe for SAP-1 and in situ hybridization to regionally localize the SAP1 gene to the long arm of chromosome 10, region q21-22. Additional mapping data using cell hybrids containing partial chromosome 10 and skin fibroblasts with trisomy 10p are consistent with the in situ hybridization mapping results.
mesh_terms: D002871:Chromosome Banding; D002874:Chromosome Mapping; D002879:Chromosomes, Human, Pair 10; D004247:DNA / Q000235:genetics; D006023:Glycoproteins; D006801:Humans; D007621:Karyotyping; D009693:Nucleic Acid Hybridization; D011506:Proteins / Q000235:genetics*; D049231:Saposins; D049128:Sphingolipid Activator Proteins
chemical_list: D006023:Glycoproteins; C483345:PSAP protein, human; D011506:Proteins; D049231:Saposins; D049128:Sphingolipid Activator Proteins; D004247:DNA