PP2A — Brassica juncea

Summary

BJUB06G55830S (BjPP2A-3) encodes a serine/threonine protein phosphatase belonging to the PPA2-like family, with protein phosphatase activity and regulator activity, and is capable of binding kinases, metals, and other proteins. This Indian mustard gene on chromosome B06 is associated with brassinosteroid signaling, TOR signaling, and protein dephosphorylation, and has been linked to the regulation of seed size, seed maturation, leaf size, leaf senescence, root mass density, and plant growth and development traits. It is associated with primary root development, stem cell differentiation, negative regulation of leaf senescence, responses to cold, abscisic acid, and stress, as well as nitrogen utilization and seed germination. The encoded protein localizes to the PP2A complex, cytosol, cytoplasm, nucleus, and nucleolus. Studies of related genes in other species link the family to altered ABA sensitivity, agravitropic root growth, and potassium uptake.