NCBI Accession #
NP_001324588.1
NCBI GenBank Nucleotide #
NM_001336356.1
NCBI Official Full Name
cation/H+ exchanger 21
NCBI Official Symbol
CHX21
NCBI Official Synonym Symbols
ATCHX21; cation/H+ exchanger 21; F20M17.5; F20M17_5
NCBI Protein Information
cation/H+ exchanger 21
NCBI Summary
member of Putative Na+/H+ antiporter family
UniProt Synonym Gene Names
AtCHX21
UniProt Protein Name
Cation/H(+) antiporter 21
UniProt Synonym Protein Names
Protein CATION/H+ EXCHANGER 21; AtCHX21
UniProt Primary Accession #
Q9SKA9
UniProt Related Accession #
Q9SKA9
UniProt Comments
Operates as a Na+/H+ antiporter that plays a role in regulation of xylem Na+ concentration and, consequently, Na+ accumulation in the leaf. Required for pollen tube guidance, but not for normal pollen development. May also be involved in the development or function of the female gametophyte.