Ideogram of the SHIP localization on human chromosome 2. The human SHIP gene was mapped to human chromosomes using FISH. Ten metaphase cells were analyzed for FISH signals using a 4.7-kb human SHIP cDNA clone. Each dot represents the occurrence of an FISH signal on one chromosome. Twenty of a possible 20 signals were observed, representing a detection efficiency of 100%. Specific signals were not seen on other chromosomes. The same location, 2q37, was found using an 18-kb genomic clone for SHIP.