Patent Ductus Arteriosus 2, also known as pda2, is related to patent ductus arteriosus 1. An important gene associated with Patent Ductus Arteriosus 2 is TFAP2B (Transcription Factor AP-2 Beta). Affiliated tissues include placenta and heart, and related phenotypes are patent ductus arteriosus and clinodactyly of the 5th finger