ATP1A1 Antibody – Polyclonal

The protein encoded by this gene belongs to the family of P-type cation transport ATPases, 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 catalytic subunit of Na+/K+ -ATPase is encoded by multiple genes. This gene encodes an alpha 1 subunit. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

ATP1A1: the 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. This action creates the electrochemical gradient of Na and K, providing the energy for active transport of various nutrients. Two splice-variant isoforms have been described.

Protein type: Transporter, ion channel; Membrane protein, integral; Hydrolase; Membrane protein, multi-pass; EC 3.6.3.9; Transporter

Chromosomal Location of Human Ortholog: 1p21

Cellular Component: apical plasma membrane; basolateral plasma membrane; caveola; endoplasmic reticulum; endosome; Golgi apparatus; integral to membrane; intracellular membrane-bound organelle; melanosome; membrane; myelin sheath; plasma membrane; protein complex; sarcolemma; sodium:potassium-exchanging ATPase complex; T-tubule

Molecular Function: ADP binding; ankyrin binding; ATP binding; chaperone binding; phosphoinositide 3-kinase binding; phosphoric monoester hydrolase activity; potassium ion binding; protein binding; protein domain specific binding; protein kinase binding; sodium ion binding; sodium:potassium-exchanging ATPase activity

Biological Process: ATP hydrolysis coupled proton transport; cardiac muscle contraction; cellular potassium ion homeostasis; cellular sodium ion homeostasis; dephosphorylation; establishment and/or maintenance of transmembrane electrochemical gradient; membrane hyperpolarization; negative regulation of glucocorticoid biosynthetic process; negative regulation of heart contraction; positive regulation of heart contraction; positive regulation of striated muscle contraction; potassium ion import; regulation of blood pressure; regulation of sodium ion transport; regulation of the force of heart contraction; response to drug