PP2A — Sorghum bicolor

Summary

SORBI_3010G174800 (SbPP2A) on sorghum chromosome 10 encodes a protein with protein serine/threonine phosphatase activity, protein tyrosine phosphatase activator activity, protein phosphatase regulator activity, and calcium-dependent protein kinase activity, belonging to the PPA2-like and calcineurin-like phosphoprotein phosphatase families. The gene is associated with C4 photosynthesis, brassinosteroid signaling, regulation of seed size, TOR signaling, gibberellin biosynthesis, and protein dephosphorylation. It has been linked to numerous agronomic traits including seed yield, biomass yield, leaf elongation rate, root development, cadmium concentration, aluminum response, nitrate uptake, phosphorus uptake, heat tolerance, and stomatal movement. The product localizes to the PP2A complex, nucleus, cytosol, plasma membrane, mitochondria, and ER membrane. Related genes in other species are associated with phosphorus deficiency tolerance, disease resistance, salinity tolerance, and nitrogen metabolism.