Aliases for ATP8B1 Gene
External Ids for ATP8B1 Gene
Previous HGNC Symbols for ATP8B1 Gene
Previous GeneCards Identifiers for ATP8B1 Gene
This gene encodes a member of the P-type cation transport ATPase family, which belongs to the subfamily of aminophospholipid-transporting ATPases. The aminophospholipid translocases transport phosphatidylserine and phosphatidylethanolamine from one side of a bilayer to another. Mutations in this gene may result in progressive familial intrahepatic cholestasis type 1 and in benign recurrent intrahepatic cholestasis. [provided by RefSeq, Jul 2008]
GeneCards Summary for ATP8B1 Gene
ATP8B1 (ATPase, Aminophospholipid Transporter, Class I, Type 8B, Member 1) is a Protein Coding gene. Diseases associated with ATP8B1 include cholestasis, intrahepatic, of pregnancy, 1 and cholestasis, benign recurrent intrahepatic. Among its related pathways are Ion channel transport and Transport of glucose and other sugars, bile salts and organic acids, metal ions and amine compounds. GO annotations related to this gene include magnesium ion binding and cation-transporting ATPase activity. An important paralog of this gene is ATP8B4.
UniProtKB/Swiss-Prot for ATP8B1 Gene
Catalytic component of a P4-ATPase flippase complex which catalyzes the hydrolysis of ATP coupled to the transport of aminophospholipids from the outer to the inner leaflet of various membranes and ensures the maintenance of asymmetric distribution of phospholipids. Phospholipid translocation seems also to be implicated in vesicle formation and in uptake of lipid signaling molecules. May play a role in asymmetric distribution of phospholipids in the canicular membrane. May have a role in transport of bile acids into the canaliculus, uptake of bile acids from intestinal contents into intestinal mucosa or both. In cooperation with ABCB4 may be involved in establishing integrity of the canalicular membrane thus protecting hepatocytes from bile salts. Together with TMEM30A is involved in uptake of the synthetic drug alkylphospholipid perifosine. Involved in the microvillus formation in polarized epithelial cells; the function seems to be independent from its flippase activity. Required for the preservation of cochlear hair cells in the inner ear. May act as cardiolipin transporter during inflammatory injury.