BIN1 — Arabidopsis thaliana

Summary

AT4G39400 (BIN1/BRI1) encodes a protein with a BRI1_island domain, a protein kinase domain, and transmembrane receptor protein tyrosine kinase activity. In Arabidopsis, BRI1 is associated with photomorphogenesis, quiescent center divisions, salt resistance, and hydrotropism. The gene is linked to regulation of receptor breakdown, stem cell development, membrane invagination, paracrine signaling, and negative regulation of brassinosteroid biosynthetic process. BRI1 localizes to the plasma membrane, endosomes, and tonoplast, and is associated with ureide biosynthesis and nucleotide metabolism. Associations include leaf shattering, root branching, shoot elongation, brassinosteroid content, plant male sterility, and responses to water stress, temperature stress, aluminum, and aphids. Related genes in other species are associated with fruit yield, ripening, carotenoid accumulation, drought resistance, heat tolerance, and tuber yield.