Homo sapiens Gene: ATP4A
Summary
InnateDB Gene IDBG-44541.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol ATP4A
Gene Name ATPase, H+/K+ exchanging, alpha polypeptide
Synonyms ATP6A
Species Homo sapiens
Ensembl Gene ENSG00000105675
Encoded Proteins
ATPase, H+/K+ exchanging, alpha polypeptide
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez Gene
Summary The protein encoded by this gene belongs to a family of P-type cation-transporting ATPases. The gastric H+, K+-ATPase is a heterodimer consisting of a high molecular weight catalytic alpha subunit and a smaller but heavily glycosylated beta subunit. This enzyme is a proton pump that catalyzes the hydrolysis of ATP coupled with the exchange of H(+) and K(+) ions across the plasma membrane. It is also responsible for gastric acid secretion. This gene encodes a catalytic alpha subunit of the gastric H+, K+-ATPase. [provided by RefSeq, Jul 2008]
Gene Information
Type Protein coding
Genomic Location Chromosome 19:35550043-35563658
Strand Reverse strand
Band q13.12
Transcripts
ENST00000262623 ENSP00000262623
ENST00000592131
ENST00000592767 ENSP00000472323
ENST00000590916
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 76 experimentally validated interaction(s) in this database.
Experimentally validated
Total 76 [view]
Protein-Protein 76 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0000166 nucleotide binding
GO:0000287 magnesium ion binding
GO:0005524 ATP binding
GO:0008900 hydrogen:potassium-exchanging ATPase activity
GO:0015077 monovalent inorganic cation transmembrane transporter activity
GO:0016820 hydrolase activity, acting on acid anhydrides, catalyzing transmembrane movement of substances
GO:0019829 cation-transporting ATPase activity
GO:0046872 metal ion binding
GO:0046982 protein heterodimerization activity
Biological Process
GO:0006754 ATP biosynthetic process
GO:0006810 transport
GO:0006812 cation transport
GO:0006813 potassium ion transport
GO:0010155 regulation of proton transport
GO:0015672 monovalent inorganic cation transport
GO:0015991 ATP hydrolysis coupled proton transport
GO:0034220 ion transmembrane transport
GO:0042493 response to drug
GO:0045851 pH reduction
GO:0055085 transmembrane transport
Cellular Component
GO:0005615 extracellular space
GO:0005886 plasma membrane
GO:0005887 integral component of plasma membrane
GO:0016020 membrane
GO:0016021 integral component of membrane
Orthologs
Species
Mus musculus
Bos taurus
Gene ID
Gene Order
Not yet available
Pathways
NETPATH
REACTOME
Ion transport by P-type ATPases pathway
Transmembrane transport of small molecules pathway
Ion channel transport pathway
KEGG
Oxidative phosphorylation pathway
Gastric acid secretion pathway
Collecting duct acid secretion pathway
INOH
PID NCI
Cross-References
SwissProt
TrEMBL
UniProt Splice Variant
Entrez Gene 495
UniGene Hs.36992
RefSeq NM_000704
HUGO HGNC:819
OMIM 137216
CCDS CCDS12467
HPRD 00668
IMGT
EMBL
GenPept
RNA Seq Atlas 495