Potassium-transporting ATPase alpha chain 2 is a
protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
that in humans is encoded by the ''ATP12A''
gene
In biology, the word gene (from , ; "... Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a b ...
.
Function
The protein encoded by this gene belongs to the family of
P-type cation transport
ATPases. This gene encodes a catalytic subunit of the
ouabain-sensitive H
+/K
+ -ATPase that catalyzes the hydrolysis of ATP coupled with the exchange of H
+ and K
+ ions across the plasma membrane. It is also responsible for potassium absorption in various tissues.
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