PP2A — Solanum tuberosum

Summary

StPP2A (PGSC0003DMG400001929) encodes a protein phosphatase 2A catalytic subunit, a member of the serine/threonine-protein phosphatase family with dual-specificity protein kinase and protein tyrosine phosphatase activator activities. In potato, StPP2A is associated with positive regulation of TOR signaling, brassinosteroid signaling, and regulation of abscisic acid anabolism. The gene has been linked to numerous agronomically important traits including biomass yield, seed yield, leaf size, root development, and responses to water, light intensity, and high temperature stress. StPP2A is also associated with phosphate concentration, cadmium tolerance, heat tolerance, and salt stress tolerance. The protein localizes to multiple cellular compartments including the cytosol, nucleus, mitochondria, and plasma membrane, and is associated with chloroplast avoidance movement, electron transport chain, and glucose metabolism. Related genes in other species are linked to phosphorus deficiency tolerance, ethylene signal transduction, and disease resistance.