Localization of junctophilin (JPH) genes on chromosomes. Ideograms of chromosomes (Chr.) 8, 20, 16, and 14 (p and q regions), showing the JPH1, JPH2, JPH3, and JPH4 gene locations, respectively. Cytogenic bands are showing in accordance with the International System for Cytogenetic Nomenclature (15). Idiograms were generated using files posted on the website of the Department of Pathology of the University of Washington (16).