Entrez Summary: The protein encoded by this gene is a membrane protein that functions to transport sodium and bicarbonate ions across the cell membrane. The encoded protein is important for pH regulation in neurons. The activity of this protein can be inhibited by 4,4'-Di-isothiocyanatostilbene-2,2'-disulfonic acid (DIDS). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012].
UniProt Summary: Mediates electroneutral sodium- and carbonate-dependent chloride-HCO3(-) exchange with a Na(+):HCO3(-) stoichiometry of 2:1. Plays a major role in pH regulation in neurons. May be involved in cell pH regulation by transporting HCO3(-) from blood to cell. Enhanced expression in severe acid stress could be important for cell survival by mediating the influx of HCO3(-) into the cells. Also mediates lithium-dependent HCO3(-) cotransport. May be regulated by osmolarity. {ECO:0000269|PubMed:10362779, ECO:0000269|PubMed:11133997}.
Pfam DomainsGO Terms
Pfam Domains
Band 3 cyto
HCO3 cotransp
GO Terms
sodium:bicarbonate symporter activity
inorganic anion exchanger activity
anion:anion antiporter activity
neuronal cell body membrane
bicarbonate transport
regulation of intracellular pH
regulation of cellular pH
regulation of pH
cellular monovalent inorganic cation homeostasis
monovalent inorganic cation homeostasis
sodium ion transport
inorganic anion transport
anion transmembrane transport
neuron projection
monovalent inorganic cation transport
organic anion transport
anion transport
cellular cation homeostasis
metal ion transport
cellular ion homeostasis
cation homeostasis
inorganic ion homeostasis
cellular chemical homeostasis
ion homeostasis
cation transport
cellular homeostasis
ion transmembrane transport
chemical homeostasis
transmembrane transport
ion transport
integral component of plasma membrane
homeostatic process
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)