FUNCTION: 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 i...
FUNCTION: 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. {ECO:0000250|UniProtKB:Q6UQ17}.
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GO - Biological processes (BP):
binding of sperm to zona pellucida [GO:0007339]; Golgi organization [GO:0007030]; phospholipid translocation [GO:0045332]...
binding of sperm to zona pellucida [GO:0007339]; Golgi organization [GO:0007030]; phospholipid translocation [GO:0045332]
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GO - Molecular function (MF):
ATPase-coupled intramembrane lipid transporter activity [GO:0140326]; ATP binding [GO:0005524]; ATP hydrolysis activity [GO:0016887]; magnesium ion binding [GO:0000287]; phosphatidylserine floppase activity [GO:0090556]...
ATPase-coupled intramembrane lipid transporter activity [GO:0140326]; ATP binding [GO:0005524]; ATP hydrolysis activity [GO:0016887]; magnesium ion binding [GO:0000287]; phosphatidylserine floppase activity [GO:0090556]
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GO - Cellular component (CC):
acrosomal membrane [GO:0002080]; endoplasmic reticulum membrane [GO:0005789]; integral component of membrane [GO:0016021]; membrane [GO:0016020]; phospholipid-translocating ATPase complex [GO:1990531]; plasma membrane [GO:0005886]; trans-Golgi network [GO:0005802]...
acrosomal membrane [GO:0002080]; endoplasmic reticulum membrane [GO:0005789]; integral component of membrane [GO:0016021]; membrane [GO:0016020]; phospholipid-translocating ATPase complex [GO:1990531]; plasma membrane [GO:0005886]; trans-Golgi network [GO:0005802]
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