The other Gα (i1, i3), Gs, Gα12, Gβ (1, 2, 4) and Gγ (5, 7, 10) subunits which were detected in PCa cell lines (Figure 1B and 1C) were not co-immunoprecipitated with CXCR5 in presence or absence of agonist (data not shown). The gene discussed is CXCR5; the disease is posterior cortical atrophy.