BRI1 — Brassica juncea

Summary

BJUB05G47080S, designated BRI1 in Indian mustard (Brassica juncea, chromosome B05), encodes a transmembrane receptor serine/threonine kinase with protein kinase and tyrosine kinase catalytic domains. The product exhibits steroid binding, SNARE binding, signaling receptor activity, and protein serine/threonine kinase activity. It is associated with brassinosteroid-mediated signaling, detection of brassinosteroid stimulus, stomatal complex morphogenesis, regulation of cell growth, skotomorphogenesis, heat acclimation, defence response to fungi, and activation of salinity response. The gene is linked to water use efficiency, seed size, and drought tolerance. It localises to the plasma membrane, endosome, and macromolecular complex. Studies of related genes in other species connect the family to receptor kinase signalling and brassinosteroid perception.