HA1 — Cucumis sativus

Summary

CsHA1 (CSA_3G881800) on cucumber chromosome 3 encodes a P-type ATPase with cation-transporting, proton-transporting, calcium-transporting, and voltage-sensitive potassium channel activities, along with guanylyl cyclase, phosphatase, SUMO transferase, and calmodulin-binding functions. The gene is associated with proton export across the plasma membrane, vacuolar acidification, cell pH regulation, nitrate import, very-long-chain fatty acid metabolism, and proanthocyanidin anabolism. It has been linked to traits including alkali soil sensitivity, stamen number and length, root volume, iron content, plant dry weight, water stress response, photosynthetic rate, bacterial disease response, auxin and brassinosteroid sensitivity, cell elongation trait, high temperature stress response, and stomatal complex closure time. Localization evidence connects the product to the plasma membrane, tonoplast, ER, nuclear envelope, and plant-type cell wall.