Atrial Septal Defect 2, also known as asd2, is related to interatrial communication and heart septal defect. An important gene associated with Atrial Septal Defect 2 is GATA4 (GATA Binding Protein 4), and among its related pathways/superpathways are Nervous system development and Embryonic and Induced Pluripotent Stem Cells and Lineage-specific Markers. The drugs Sodium fluoride and Fluorides have been mentioned in the context of this disorder. Affiliated tissues include heart and trachea, and related phenotypes are atrial septal defect and pulmonic stenosis