PS2 — Phaseolus vulgaris

Summary

PvPS2 (PHAVU_010G140900) on French bean chromosome 10 encodes a protein with phosphocholine phosphatase, phosphoethanolamine phosphatase, pyrophosphatase, and inorganic diphosphatase activities, belonging to the HAD-like superfamily of phosphatases. The gene is associated with protein tetramerization and dephosphorylation, cellular responses to phosphate starvation and hypoxia, and signal transduction. Its product localizes to the endoplasmic reticulum and nucleus. PvPS2 is associated with phosphate homeostasis and shows no change in response to multiple stressors. Studies of related genes in other species connect the family to phosphate content, lateral root length, seed maturation and dormancy, stomatal opening, and photochemical quenching, though these associations are not yet established in French bean.