Aliases for ATP1B2 Gene
External Ids for ATP1B2 Gene
Previous GeneCards Identifiers for ATP1B2 Gene
The protein encoded by this gene belongs to the family of Na+/K+ and H+/K+ ATPases beta chain proteins, and to the subfamily of Na+/K+ -ATPases. Na+/K+ -ATPase is an integral membrane protein responsible for establishing and maintaining the electrochemical gradients of Na and K ions across the plasma membrane. These gradients are essential for osmoregulation, for sodium-coupled transport of a variety of organic and inorganic molecules, and for electrical excitability of nerve and muscle. This enzyme is composed of two subunits, a large catalytic subunit (alpha) and a smaller glycoprotein subunit (beta). The beta subunit regulates, through assembly of alpha/beta heterodimers, the number of sodium pumps transported to the plasma membrane. The glycoprotein subunit of Na+/K+ -ATPase is encoded by multiple genes. This gene encodes a beta 2 subunit. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2014]
GeneCards Summary for ATP1B2 Gene
ATP1B2 (ATPase Na+/K+ Transporting Subunit Beta 2) is a Protein Coding gene. Diseases associated with ATP1B2 include Familial Hemiplegic Migraine and Juvenile Retinoschisis. Among its related pathways are Cardiac conduction and Proximal tubule bicarbonate reclamation. Gene Ontology (GO) annotations related to this gene include ATPase binding and sodium:potassium-exchanging ATPase activity. An important paralog of this gene is ATP1B3.
UniProtKB/Swiss-Prot Summary for ATP1B2 Gene
This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The exact function of the beta-2 subunit is not known.
Mediates cell adhesion of neurons and astrocytes, and promotes neurite outgrowth.
The Na+/K+ ATPase is a membrane protein that is composed of two subunits - alpha and beta. The pump maintains an essential electrochemical gradient within cells through the active transport of sodium (Na+) and potassium (K+) ions.