PP2A — Cucumis melo

Summary

MELO3C026508.2 (CmPP2A) on melon chromosome 4 encodes a protein with a PPA2-like domain, a serine/threonine-specific protein phosphatase domain, a calcineurin-like phosphoesterase domain, and a metallo-dependent phosphatase-like domain. It is associated with protein tyrosine phosphatase activator activity, protein phosphatase binding, dual-specificity protein kinase activity, protein phosphatase regulator activity, cis-trans proline isomerase activity, calcium-dependent protein serine/threonine kinase activity, protein serine/threonine phosphatase activity, kinase binding, kinase activity, protein kinase activity, transcription cis-regulatory region binding, and metal binding. CmPP2A is linked to brassinosteroid signaling, regulation of seed size, and reproductive structure development. It is associated with biomass yield, seed yield, leaf elongation rate, root hair length, lateral root length, transpiration rate, and responses to nitrate, cadmium, aluminum, and high temperature stress. The gene is also linked to stomatal movement, root development, phosphate concentration, and thermotolerance. Studies of related genes in other species link the family to phosphorus deficiency tolerance, potassium uptake, disease resistance, and salinity tolerance.