Cytochrome c oxidase subunit 6A2, mitochondrial (Fragment) 20 This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. Cytochrome c oxidase polypeptide VIa-heart ASGAKGDHGGAGASTXXLLT COX6A2 CX6A2_CANFA