BRI1 — Brassica juncea

Summary

BJUB03G31180S (BRI1, also known as BjRKFL3) on Indian mustard chromosome B03 encodes a transmembrane receptor serine/threonine kinase with leucine-rich repeats and a malectin domain. The gene product exhibits steroid binding, SNARE binding, signaling receptor activity, and protein kinase activity. BRI1 is associated with detection of brassinosteroid stimulus, hormone-mediated signaling, regulation of developmental growth, stomatal complex morphogenesis, microsporogenesis, megasporogenesis, anther wall tapetum development, embryo sac development, and heat acclimation. It localizes to the plasma membrane, endosome, and membrane. The gene has been connected to water use efficiency, seed size, and drought tolerance. Related genes in other species link the family to non-specific serine/threonine protein kinase activity.