COX1 — Daucus carota subsp. sativus

Summary

DCAR_032457 (COX1, cox1) on carrot chromosome Mt encodes a protein with cytochrome-c oxidase activity, heme binding, and metal binding, and is localised to the mitochondrial inner membrane and respiratory chain complex IV. This gene is associated with mitochondrial electron transport from cytochrome c to oxygen, electron transport coupled proton transport, oxidative phosphorylation, aerobic respiration, electron transfer, and secretion. 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, though these associations are not yet established in carrot.