C4H — Brassica oleracea

Summary

BoC4H (BOLC102_C04P020780.1) on cabbage chromosome 4 encodes a cytochrome P450 enzyme with trans-cinnamate 4-monooxygenase activity. The encoded protein binds iron and heme, localises to the endoplasmic reticulum, membrane, nucleus, cell wall, vacuole, plasmodesmata, Golgi and extracellular space. BoC4H is associated with phenylpropanoid, lignin, flavonoid, anthocyanin, glucosinolate, ubiquinone and chlorophyll metabolism, including anthocyanin breakdown and pigmentation. It has been linked to leaf colour, flavonoid, anthocyanin and sugar content, drought tolerance, wound response, UV-B protection, male fertility, plant growth, lignin deposition and content, lateral and adventitious root development, Casparian strip formation, auxin transport, and hyperhydricity. Studies of related genes in other species connect it to lignification, dwarfism, altered phenylpropanoid metabolism, resveratrol production, male sterility and abiotic stress adaptation.