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Kv1.3
Mediates the voltage-dependent potassium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient. Belongs to the potassium channel family. A (Shaker) (TC 1.A.1.2) subfamily. Kv1.3/KCNA3 sub-subfamily. Note: This description may include information from UniProtKB.
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| Protein type: Channel, potassium; Membrane protein, integral; Membrane protein, multi-pass |
| Chromosomal Location of Human Ortholog: 1p13.3 |
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Cellular Component:
calyx of Held; glutamatergic synapse; integral component of postsynaptic membrane; integral component of presynaptic membrane; membrane raft; plasma membrane
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Molecular Function:
protein binding; voltage-gated ion channel activity
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Biological Process:
potassium ion transport; protein homooligomerization; regulation of ion transmembrane transport
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Reference #:
P22001
(UniProtKB)
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Alt. Names/Synonyms: HGK5; HLK3; HPCN3; HUKIII; KCNA3; KV1.3; MK3; PCN3; potassium channel 3; potassium channel, voltage gated shaker related subfamily A, member 3; Potassium voltage-gated channel subfamily A member 3; potassium voltage-gated channel, shaker-related subfamily, member 3; type n potassium channel; Voltage-gated K(+) channel HuKIII; voltage-gated potassium channel protein Kv1.3; Voltage-gated potassium channel subunit Kv1.3
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Gene Symbols: KCNA3
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Molecular weight:
63,842 Da
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Basal Isoelectric point:
5.61
Predict pI for various phosphorylation states
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