NHX1 — Brassica juncea

Summary

BJUA07G22740S (NHX1) in Indian mustard (Brassica juncea) on chromosome A07 encodes a protein with a cation/H+ exchanger transmembrane domain and a UbiB kinase domain, and has potassium:proton antiporter activity and sodium:hydrogen exchanger activity. The gene is associated with vacuolar membrane transport, sodium import, cell pH regulation, potassium ion membrane transport, photoprotection, detoxification, calcium signaling, chlorophyll fluorescence, response to stress, homeostasis, and activation of salinity response. It is linked to vacuolar membrane and plasmalemma localisation, as well as chlorophyll content and the SALTTL trait. Related genes in other species link the family to sodium/hydrogen exchange.