Aliases for ATP8B3 Gene
External Ids for ATP8B3 Gene
Previous GeneCards Identifiers for ATP8B3 Gene
The protein encoded by this gene belongs to the family of P-type cation transport ATPases, and to the subfamily of aminophospholipid-transporting ATPases. The aminophospholipid translocases transport phosphatidylserine and phosphatidylethanolamine from one side of a bilayer to the other. This gene encodes member 3 of phospholipid-transporting ATPase 8B; other members of this protein family are located on chromosomes 1, 15 and 18. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]
GeneCards Summary for ATP8B3 Gene
ATP8B3 (ATPase, Aminophospholipid Transporter, Class I, Type 8B, Member 3) is a Protein Coding gene. 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 ATP8B3 Gene
P4-ATPase flippase 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 be responsible for the maintenance of asymmetric distribution of phosphatidylserine (PS) in spermatozoa membranes. Involved in acrosome reactions and binding of spermatozoa to zona pellucida (By similarity).