Term Name:	endocardial cushion to mesenchymal transition involved in heart valve formation
Synonyms:	endocardial cushion to mesenchymal transition involved in valve formation
Definition:	A transition where an endocardial cushion cell loses apical/basolateral polarity, severs intercellular adhesive junctions, degrades basement membrane components and becomes a migratory mesenchymal cell that will contribute to the formation of a cardiac valve.
Ontology:	GO: Biological Process [GO:0003199]    QuickGO    AmiGO