COX7C (Cytochrome C Oxidase Subunit 7C): COX7C is a gene that codes for a subunit of cytochrome c oxidase, an essential enzyme complex found in the mitochondria. This complex plays a crucial role in the electron transport chain, a key step in cellular respiration. By facilitating the transfer of electrons and protons, COX7C helps drive the production of cellular energy in the form of adenosine triphosphate (ATP).