ATP1A4

ATP1A4

ATP1A4

Protein-coding gene in the species Homo sapiens


Sodium/potassium-transporting ATPase subunit alpha-4 is an enzyme that in humans is encoded by the ATP1A4 gene.[5][6][7]

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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 4 subunit. Alternatively spliced transcript variants encoding different isoforms have been identified.[7]


References

  1. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  2. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. Buetow KH, Nishimura D, Nakamura Y, Jiang O, Murray JC (May 1991). "A detailed multipoint gene map of chromosome 1q". Genomics. 8 (1): 13–21. doi:10.1016/0888-7543(90)90220-O. PMID 1981991.
  4. Shull MM, Lingrel JB (Jul 1987). "Multiple genes encode the human Na+,K+-ATPase catalytic subunit". Proc Natl Acad Sci U S A. 84 (12): 4039–43. Bibcode:1987PNAS...84.4039S. doi:10.1073/pnas.84.12.4039. PMC 305017. PMID 3035563.

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