Human Gene ATP1B2 (ENST00000250111.9_3) from GENCODE V45lift37
Description: Homo sapiens ATPase Na+/K+ transporting subunit beta 2 (ATP1B2), transcript variant 1, mRNA. (from RefSeq NM_001678) RefSeq Summary (NM_001678): 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]. Gencode Transcript: ENST00000250111.9_3 Gencode Gene: ENSG00000129244.9_7 Transcript (Including UTRs) Position: hg19 chr17:7,554,244-7,561,088 Size: 6,845 Total Exon Count: 7 Strand: + Coding Region Position: hg19 chr17:7,554,837-7,559,213 Size: 4,377 Coding Exon Count: 7
ID:AT1B2_HUMAN DESCRIPTION: RecName: Full=Sodium/potassium-transporting ATPase subunit beta-2; AltName: Full=Adhesion molecule in glia; Short=AMOG; AltName: Full=Sodium/potassium-dependent ATPase subunit beta-2; FUNCTION: 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. FUNCTION: Mediates cell adhesion of neurons and astrocytes, and promotes neurite outgrowth. SUBUNIT: The sodium/potassium-transporting ATPase is composed of a catalytic alpha subunit, an auxiliary non-catalytic beta subunit and an additional regulatory subunit. Interacts with isoform 2 of BSG (By similarity). SUBCELLULAR LOCATION: Cell membrane; Single-pass type II membrane protein. DOMAIN: The C-terminal lobe folds into an immunoglobulin-like domain and mediates cell adhesion properties. SIMILARITY: Belongs to the X(+)/potassium ATPases subunit beta family.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on P14415
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Gene Ontology (GO) Annotations with Structured Vocabulary
Biological Process: GO:0006811 ion transport GO:0006813 potassium ion transport GO:0006814 sodium ion transport GO:0006883 cellular sodium ion homeostasis GO:0007155 cell adhesion GO:0010248 establishment or maintenance of transmembrane electrochemical gradient GO:0030007 cellular potassium ion homeostasis GO:0032781 positive regulation of ATPase activity GO:0034220 ion transmembrane transport GO:0036376 sodium ion export from cell GO:0050821 protein stabilization GO:0050900 leukocyte migration GO:0086009 membrane repolarization GO:0086064 cell communication by electrical coupling involved in cardiac conduction GO:1901018 positive regulation of potassium ion transmembrane transporter activity GO:1903278 positive regulation of sodium ion export from cell GO:1903288 positive regulation of potassium ion import GO:1903779 regulation of cardiac conduction GO:1990573 potassium ion import across plasma membrane
Sequence and Links to Tools and Databases 
Common Gene Haplotype Alleles 
