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- Table of Contents
Facts about Voltage-gated potassium channel subunit beta-2.
Promotes expression of this pore-forming alpha subunits at the cell membrane, and thereby increases channel activity (By similarity). Promotes potassium channel closure via a mechanism that does not involve physical obstruction of the channel pore (PubMed:7649300, PubMed:11825900).
Human | |
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Gene Name: | KCNAB2 |
Uniprot: | Q13303 |
Entrez: | 8514 |
Belongs to: |
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shaker potassium channel beta subunit family |
HKvbeta2; HKvbeta2.1; HKvbeta2.2; K(+) channel subunit beta-2; K+ channel beta-2 subunit; KCNA2BAKR6A5; KCNK2; KV-BETA-2; MGC117289; potassium channel shaker chain beta 2; potassium voltage-gated channel, shaker-related subfamily, beta member 2; voltage-gated potassium channel subunit beta-2
Mass (kDA):
41 kDA
Human | |
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Location: | 1p36.31 |
Sequence: | 1; NC_000001.11 (5992639..6101186) |
Detected in myelinated nerve fibers in the spinal cord, in the juxtaparanodal region of the nodes of Ranvier, but also in the paranodal region (PubMed:11086297). Detected in hippocampus (at protein level) (PubMed:21357749). Detected in hippocampus (PubMed:7649300).
Cytoplasm. Membrane; Peripheral membrane protein; Cytoplasmic side. Cell membrane; Peripheral membrane protein; Cytoplasmic side. Cell projection, axon. Cell junction, synapse, synaptosome. Cytoplasm, cytoskeleton. Recruited to the cytoplasmic side of the cell membrane via its interaction with pore-forming potassium channel alpha subunits. Associates with microtubules when unphosphorylated.
PMID: 7649300 by Mccormack K., et al. Alternative splicing of the human Shaker K+ channel beta 1 gene and functional expression of the beta 2 gene product.
PMID: 11086297 by Rasband M.N., et al. Subunit composition and novel localization of K+ channels in spinal cord.