COX5A (Cytochrome C Oxidase Subunit 5A) is a Protein Coding gene. Diseases associated with COX5A include Mitochondrial Complex Iv Deficiency and Chronic Progressive External Ophthalmoplegia. Among its related pathways are Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins. and Gene Expression. Gene Ontology (GO) annotations related to this gene include electron transfer activity and cytochrome-c oxidase activity.