Cardiomyopathy, Familial Hypertrophic, 18, also known as hypertrophic cardiomyopathy 18, is related to cardiomyopathy, dilated, 1p and arrhythmogenic right ventricular dysplasia, familial, 9, and has symptoms including atypical chest pain An important gene associated with Cardiomyopathy, Familial Hypertrophic, 18 is PLN (Phospholamban), and among its related pathways/superpathways are Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins. and Transcriptional activation of mitochondrial biogenesis. Affiliated tissues include heart and heart-ventricle, and related phenotypes are hypertrophic cardiomyopathy and left ventricular hypertrophy