COMT — Brassica oleracea

Summary

BoCOMT, encoded by the cabbage gene BOLC102_C02P021180.1_BOLC102_V1 on chromosome 2, is a SAM-dependent methyltransferase with multiple O-methyltransferase activities, including caffeate, myricetin 3'-, quercetin 3-O-, flavone 3'-, and acetylserotonin O-methyltransferase. It is associated with lignin, flavonoid, phenylpropanoid, and melatonin biosynthesis, as well as serotonin metabolism, chlorophyll breakdown, and regulation of anthocyanin metabolism. The gene is linked to lignin content, flavonoid content, leaf vein morphology, viral disease response, and cell growth traits. It is associated with freezing and mannitol responses, stomatal closure regulation, and phloem transport. The protein localises to the cytosol, nucleus, plastid, plasmalemma, plasmodesma, and plant-type cell wall. Related genes in other species link the COMT family to caffeic acid conversion, nitrogen stress adaptation, and growth and development.