Monarch Disease Ontology term MONDO_0014636 (combined oxidative phosphorylation defect type 25) is any combined oxidative phosphorylation deficiency in which the cause of the disease is a mutation in the MARS2 gene. Also known as: COXPD25, MARS2 combined oxidative phosphorylation deficiency, combined oxidative phosphorylation deficiency caused by mutation in MARS2, combined oxidative phosphorylation deficiency type 25.