NCBI Accession #
NP_178307.2
NCBI GenBank Nucleotide #
NM_126259.4
NCBI Official Full Name
sodium proton exchanger, putative (NHX7) (SOS1)
NCBI Official Symbol
SOS1
NCBI Official Synonym Symbols
ARABIDOPSIS NA+/H+ ANTIPORTER 7; ARABIDOPSIS SALT OVERLY SENSITIVE 1; ATNHX7; ATSOS1; F14H20.5; F14H20_5; SALT OVERLY SENSITIVE 1
NCBI Protein Information
sodium proton exchanger, putative (NHX7) (SOS1)
NCBI Summary
Encodes a plasma membrane-localized Na+/H+ antiporter SOS1. Functions in the extrusion of toxic Na+ from cells and is essential for plant salt tolerance. Has 12 predicted transmembrane domains in the N-terminal region and a long cytoplasmic tail of approx. 700 aa at the C-terminal side. SOS1 interacts through its predicted cytoplasmic tail with RCD1, a regulator of oxidative-stress responses, suggesting that SOS1 might function in oxidative-stress tolerance.
UniProt Synonym Gene Names
SOS1; NHE-7
UniProt Protein Name
Sodium/hydrogen exchanger 7
UniProt Synonym Protein Names
Na(+)/H(+) exchanger 7; NHE-7; Protein SALT OVERLY SENSITIVE 1
UniProt Primary Accession #
Q9LKW9
UniProt Secondary Accession #
Q9ZPS6
UniProt Related Accession #
Q9LKW9
UniProt Comments
Acts in electroneutral exchange of protons for cations such as Na+ or Li+ across plasma membrane. Involved in Na+ and K+ homeostasis. Required for cytoplasmic Na+ and Li+ detoxification by secreting them from the cytoplasm to the extracellular space. Regulates Na+ content of the xylem sap.