Arina Puzriakova Added comment: Comment on list classification: There are sufficient unrelated cases to support a gene-disease association and given that in vitro studies of patient variants have shown functional defects in the mitochondrial respiratory chain, this gene can be promoted to Green status at the next GMS panel update.
Zornitza Stark edited their review of gene: CYCS: Added comment: At least three families have been reported with this condition. CYCS is located in the mitochondria and is involved in the electron transport system that functions in oxidative phosphorylation.; Changed publications: 18345000, 24326104, 30051457