PHAVU_002G278108 — Phaseolus vulgaris

Summary

PHAVU_002G278108, on French bean (Phaseolus vulgaris) chromosome 2, encodes a CemA family protein with proton transporter activity and potassium:proton antiporter activity. The gene is associated with cell pH regulation, potassium ion membrane transport, and proton transmembrane transport, and its product localises to the chloroplast inner membrane. Studies of related genes in other species link the CemA family to chloroplast ion homeostasis and pH balance, though these associations are not yet established in French bean.