MT-CO2 (Mitochondrially Encoded Cytochrome C Oxidase II) is a Protein Coding gene. Diseases associated with MT-CO2 include Mitochondrial Complex Iv Deficiency and Familial Colorectal Cancer. Among its related pathways are Metabolism and Regulation of Wnt-mediated beta catenin signaling and target gene transcription. Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. Subunit 2 transfers the electrons from cytochrome c via its binuclear copper A center to the bimetallic center of the catalytic subunit 1.