C4H — Brassica juncea

Summary

BjC4H (BJUA03G43540S) on chromosome A03 of Indian mustard encodes a trans-cinnamate 4-monooxygenase, a cytochrome P450 family protein with heme and iron binding. This gene is associated with lignin metabolism, phenylpropanoid metabolism, and anthocyanin, flavonoid, and ubiquinone anabolism. It is linked to leaf formation, pigmentation, pollen development, wound response, and response to light stimulus. The encoded protein localizes to the endoplasmic reticulum, plasmodesmata, plant-type cell wall, vacuole, Golgi, plasma membrane, nucleus, and extracellular space. Associations include seed color, leaf color, anthocyanin content, lignin deposition and content, male fertility, plant growth, lateral and adventitious root development, Casparian strip formation, auxin transport, and UV-B protection. Studies of related genes in other species link the C4H family to lignification, dwarfism, altered phenylpropanoid metabolism, male sterility, and abiotic stress adaptation.