COX1 — Capsicum annuum

Summary

CaCOX1 (T459_28123) on pepper chromosome 11 encodes cytochrome c oxidase subunit 1, a core component of respiratory chain complex IV. The product possesses cytochrome-c oxidase activity, heme binding, and metal binding, and localises to the mitochondrial inner membrane. This gene is associated with mitochondrial electron transport from cytochrome c to oxygen, electron transport coupled proton transport, oxidative phosphorylation, aerobic and cellular respiration, and cell death. It has also been connected to cytoplasmic male sterility. Studies of related genes in other species link the COX1 family to quantum yield, pollen fertility, chlorophyll content, and drought tolerance.