Mitochondrial Complex Iii Deficiency, also known as ubiquinone-cytochrome c oxidoreductase deficiency, is related to mitochondrial complex iii deficiency, nuclear type 1 and mitochondrial complex v deficiency, nuclear type 3. An important gene associated with Mitochondrial Complex Iii Deficiency is TTC19 (Tetratricopeptide Repeat Domain 19), and among its related pathways/superpathways are Metabolism and Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins.. Affiliated tissues include liver and heart, and related phenotypes are Increased shRNA abundance (Z-score > 2) and Decreased shRNA abundance