PP2A — Solanum tuberosum

Summary

StPP2A (PGSC0003DMG400005301) on potato chromosome 1 encodes a protein with serine/threonine-protein phosphatase activity, protein tyrosine phosphatase activator activity, protein phosphatase binding and regulator activity, and dual-specificity protein kinase activity. It belongs to the PPA2-like and calcineurin-like phosphoprotein phosphatase families. The gene is associated with positive regulation of TOR signaling, regulation of stem cell renewal, mitotic spindle organization, chloroplast avoidance movement, and responses to water, fructose, carbon dioxide, and absence of light. It localizes to the PP2A complex, ER membrane, mitochondria, plasmalemma, cytosol, and nucleus. StPP2A is linked to traits including biomass yield, seed yield, leaf elongation rate, root hair length, lateral root length, transpiration rate, cadmium concentration, phosphorus uptake, nitrate sensitivity, and high temperature stress response. Related genes in other species are linked to phosphorus deficiency tolerance, salinity tolerance, disease resistance, and ethylene signal transduction.