FUNCTION: ATP-driven Ca(2+) ion pump involved in the maintenance of basal intracellular Ca(2+) levels in specialized cells of cerebellar circuit and vestibular and cochlear systems (PubMed:17234811, PubMed:15829536). Uses ATP as an energy source to transport cytosolic Ca(2+) ions across the plasma m...
FUNCTION: ATP-driven Ca(2+) ion pump involved in the maintenance of basal intracellular Ca(2+) levels in specialized cells of cerebellar circuit and vestibular and cochlear systems (PubMed:17234811, PubMed:15829536). Uses ATP as an energy source to transport cytosolic Ca(2+) ions across the plasma membrane to the extracellular compartment (PubMed:17234811, PubMed:15829536). Has fast activation and Ca(2+) clearance rate suited to control fast neuronal Ca(2+) dynamics. At parallel fiber to Purkinje neuron synapse, mediates presynaptic Ca(2+) efflux in response to climbing fiber-induced Ca(2+) rise. Provides for fast return of Ca(2+) concentrations back to their resting levels, ultimately contributing to long-term depression induction and motor learning (By similarity). Plays an essential role in hearing and balance (PubMed:17234811, PubMed:15829536). In cochlear hair cells, shuttles Ca(2+) ions from stereocilia to the endolymph and dissipates Ca(2+) transients generated by the opening of the mechanoelectrical transduction channels. Regulates Ca(2+) levels in the vestibular system, where it contributes to the formation of otoconia (PubMed:17234811, PubMed:15829536). In non-excitable cells, regulates Ca(2+) signaling through spatial control of Ca(2+) ions extrusion and dissipation of Ca(2+) transients generated by store-operated channels (PubMed:25690014). In lactating mammary gland, allows for the high content of Ca(2+) ions in the milk (By similarity). {ECO:0000250|UniProtKB:Q9R0K7, ECO:0000269|PubMed:15829536, ECO:0000269|PubMed:17234811, ECO:0000269|PubMed:25690014}.
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GO - Biological processes (BP):
brain development [GO:0007420]; calcium ion transport [GO:0006816]; cellular calcium ion homeostasis [GO:0006874]; ion transmembrane transport [GO:0034220]; neural retina development [GO:0003407]; neuron differentiation [GO:0030182]; regulation of cardiac conduction [GO:1903779]; regulation of cytos...
brain development [GO:0007420]; calcium ion transport [GO:0006816]; cellular calcium ion homeostasis [GO:0006874]; ion transmembrane transport [GO:0034220]; neural retina development [GO:0003407]; neuron differentiation [GO:0030182]; regulation of cardiac conduction [GO:1903779]; regulation of cytosolic calcium ion concentration [GO:0051480]; sensory perception of sound [GO:0007605]
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GO - Molecular function (MF):
ATPase-coupled cation transmembrane transporter activity [GO:0019829]; ATP binding [GO:0005524]; ATP hydrolysis activity [GO:0016887]; calcium ion binding [GO:0005509]; calmodulin binding [GO:0005516]; glutamate receptor binding [GO:0035254]; metal ion binding [GO:0046872]; PDZ domain binding [GO:00...
ATPase-coupled cation transmembrane transporter activity [GO:0019829]; ATP binding [GO:0005524]; ATP hydrolysis activity [GO:0016887]; calcium ion binding [GO:0005509]; calmodulin binding [GO:0005516]; glutamate receptor binding [GO:0035254]; metal ion binding [GO:0046872]; PDZ domain binding [GO:0030165]; protein C-terminus binding [GO:0008022]; P-type calcium transporter activity [GO:0005388]; P-type calcium transporter activity involved in regulation of postsynaptic cytosolic calcium ion concentration [GO:1905059]; P-type calcium transporter activity involved in regulation of presynaptic cytosolic calcium ion concentration [GO:1905056]
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GO - Cellular component (CC):
apical plasma membrane [GO:0016324]; basolateral plasma membrane [GO:0016323]; cytoplasm [GO:0005737]; dendritic spine membrane [GO:0032591]; extracellular exosome [GO:0070062]; GABA-ergic synapse [GO:0098982]; glutamatergic synapse [GO:0098978]; integral component of plasma membrane [GO:0005887]; i...
apical plasma membrane [GO:0016324]; basolateral plasma membrane [GO:0016323]; cytoplasm [GO:0005737]; dendritic spine membrane [GO:0032591]; extracellular exosome [GO:0070062]; GABA-ergic synapse [GO:0098982]; glutamatergic synapse [GO:0098978]; integral component of plasma membrane [GO:0005887]; integral component of postsynaptic density membrane [GO:0099061]; integral component of presynaptic active zone membrane [GO:0099059]; intracellular membrane-bounded organelle [GO:0043231]; membrane raft [GO:0045121]; neuronal cell body membrane [GO:0032809]; parallel fiber to Purkinje cell synapse [GO:0098688]; plasma membrane [GO:0005886]; postsynaptic density membrane [GO:0098839]
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