Mitral Valve Prolapse 2, also known as mitral valve prolapse, myxomatous 2, is related to orthostatic intolerance. An important gene associated with Mitral Valve Prolapse 2 is DCHS1 (Dachsous Cadherin-Related 1). Affiliated tissues include heart and heart-ventricle, and related phenotypes are mitral valve prolapse and mitral regurgitation