KCNB2

Potassium voltage-gated channel subfamily B member 2

911 amino acids

Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain and smooth muscle cells. Channels open or close in response to the voltage difference across the membrane, letting potassium ions pass in accordance with their electrochemical gradient. Homotetrameric channels mediate a delayed-rectifier voltage-dependent outward potassium current that display rapid activation and slow inactivation in response to membrane depolarization. Can form functional homotetrameric and heterotetrameric channels that contain variable proportions of KCNB1; channel properties depend on the type of alpha subunits that are part of the channel. Can also form functional heterotetrameric channels with other alpha subunits that are non-conducting when expressed alone, such as KCNS1 and KCNS2, creating a functionally diverse range of channel complexes. In vivo, membranes probably contain a mixture of heteromeric potassium channel complexes, making it difficult to assign currents observed in intact tissues to any particular potassium channel family member. Contributes to the delayed-rectifier voltage-gated potassium current in cortical pyramidal neurons and smooth muscle cells.

Belongs to the potassium channel family. B (Shab) (TC 1.A.1.2) subfamily. Kv2.2/KCNB2 sub-subfamily.

102.276 kDa

MAEKVPPGLNRKTSRSTLSLPPEPVDIIRSKTCSRRVKINVGGLNHEVLWRTLDRLPRTRLGKLRDCNTHESLLEVCDDYNLNENEYFFDRHPGAFTSILNFYRTGKLHMMEEMCALSFGQELDYWGIDEIYLESCCQARYHQKKEQMNEELRREAETMREREGEEFDNTCCPEKRKKLWDLLEKPNSSVAAKILAIVSILFIVLSTIALSLNTLPELQEMDEFGQPNDNPQLAHVEAVCIAWFTMEYLLRFLSSPNKWKFFKGPLNVIDLLAILPYYVTIFLTESNKSVLQFQNVRRVVQIFRIMRILRILKLARHSTGLQSLGFTLRRSYNELGLLILFLAMGIMIFSSLVFFAEKDEDATKFTSIPASFWWATITMTTVGYGDIYPKTLLGKIVGGLCCIAGVLVIALPIPIIVNNFSEFYKEQKRQEKAIKRREALERAKRNGSIVSMNLKDAFARSMELIDVAVEKTGESANTKGSTDDNHLSPSRWKWARKALSETSSNKSYENKYQEVSQKDSHEQLNNTSSSSPQHLSAQKLEMLYNEITKTQPHSHPNPDGQEQAERPSTYEEEIEMEEVVCPQEQLAVAQTEGVVDMKSTSSIDSFTSCATDFTETERSPLPPPSASHLQMKFPPDLAGLEEHQRARAPPFLALIRQKGPTVREATPEYAPIDITVNLDAAGGPQGGPHGPLPTDCASESPKSSLKGSNPLKSRSLKVNFKDSRGGAPPTPPSTARPLPVTAADFPLTAPQLISTILLEETPSQGDRPLLGAEVHCQGPSKGLTPRFPKQKLFTFSARERRSFTEIDTGEDDDFLELQGTRRPDKQADSSPNCLTDKPSDGRDPLREEACVGSSSAQDTSHNCRQGIYHGVAEVKKDNSQEGCKMENHLFAPEIHSNPGDTGYCPTRETSM

KCNB2

Potassium voltage-gated channel subfamily B member 2

911 amino acids

Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain and smooth muscle cells. Channels open or close in response to the voltage difference across the membrane, letting potassium ions pass in accordance with their electrochemical gradient. Homotetrameric channels mediate a delayed-rectifier voltage-dependent outward potassium current that display rapid activation and slow inactivation in response to membrane depolarization. Can form functional homotetrameric and heterotetrameric channels that contain variable proportions of KCNB1; channel properties depend on the type of alpha subunits that are part of the channel. Can also form functional heterotetrameric channels with other alpha subunits that are non-conducting when expressed alone, such as KCNS1 and KCNS2, creating a functionally diverse range of channel complexes. In vivo, membranes probably contain a mixture of heteromeric potassium channel complexes, making it difficult to assign currents observed in intact tissues to any particular potassium channel family member. Contributes to the delayed-rectifier voltage-gated potassium current in cortical pyramidal neurons and smooth muscle cells.

Belongs to the potassium channel family. B (Shab) (TC 1.A.1.2) subfamily. Kv2.2/KCNB2 sub-subfamily.

102.276 kDa

MAEKVPPGLNRKTSRSTLSLPPEPVDIIRSKTCSRRVKINVGGLNHEVLWRTLDRLPRTRLGKLRDCNTHESLLEVCDDYNLNENEYFFDRHPGAFTSILNFYRTGKLHMMEEMCALSFGQELDYWGIDEIYLESCCQARYHQKKEQMNEELRREAETMREREGEEFDNTCCPEKRKKLWDLLEKPNSSVAAKILAIVSILFIVLSTIALSLNTLPELQEMDEFGQPNDNPQLAHVEAVCIAWFTMEYLLRFLSSPNKWKFFKGPLNVIDLLAILPYYVTIFLTESNKSVLQFQNVRRVVQIFRIMRILRILKLARHSTGLQSLGFTLRRSYNELGLLILFLAMGIMIFSSLVFFAEKDEDATKFTSIPASFWWATITMTTVGYGDIYPKTLLGKIVGGLCCIAGVLVIALPIPIIVNNFSEFYKEQKRQEKAIKRREALERAKRNGSIVSMNLKDAFARSMELIDVAVEKTGESANTKGSTDDNHLSPSRWKWARKALSETSSNKSYENKYQEVSQKDSHEQLNNTSSSSPQHLSAQKLEMLYNEITKTQPHSHPNPDGQEQAERPSTYEEEIEMEEVVCPQEQLAVAQTEGVVDMKSTSSIDSFTSCATDFTETERSPLPPPSASHLQMKFPPDLAGLEEHQRARAPPFLALIRQKGPTVREATPEYAPIDITVNLDAAGGPQGGPHGPLPTDCASESPKSSLKGSNPLKSRSLKVNFKDSRGGAPPTPPSTARPLPVTAADFPLTAPQLISTILLEETPSQGDRPLLGAEVHCQGPSKGLTPRFPKQKLFTFSARERRSFTEIDTGEDDDFLELQGTRRPDKQADSSPNCLTDKPSDGRDPLREEACVGSSSAQDTSHNCRQGIYHGVAEVKKDNSQEGCKMENHLFAPEIHSNPGDTGYCPTRETSM

KCNB2

Potassium voltage-gated channel subfamily B member 2

911 amino acids

Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain and smooth muscle cells. Channels open or close in response to the voltage difference across the membrane, letting potassium ions pass in accordance with their electrochemical gradient. Homotetrameric channels mediate a delayed-rectifier voltage-dependent outward potassium current that display rapid activation and slow inactivation in response to membrane depolarization. Can form functional homotetrameric and heterotetrameric channels that contain variable proportions of KCNB1; channel properties depend on the type of alpha subunits that are part of the channel. Can also form functional heterotetrameric channels with other alpha subunits that are non-conducting when expressed alone, such as KCNS1 and KCNS2, creating a functionally diverse range of channel complexes. In vivo, membranes probably contain a mixture of heteromeric potassium channel complexes, making it difficult to assign currents observed in intact tissues to any particular potassium channel family member. Contributes to the delayed-rectifier voltage-gated potassium current in cortical pyramidal neurons and smooth muscle cells.

Belongs to the potassium channel family. B (Shab) (TC 1.A.1.2) subfamily. Kv2.2/KCNB2 sub-subfamily.

102.563 kDa

MAEKAPPGLNRKTSRSTLSLPPEPVDIIRSKTCSRRVKINVGGLNHEVLWRTLDRLPRTRLGKLRDCNTHESLLEVCDDYNLNENEYFFDRHPGAFTSILNFYRTGKLHMMEEMCALSFGQELDYWGIDEIYLESCCQARYHQKKEQMNEELRREAETMREREGEEFDNTCCPDKRKKLWDLLEKPNSSVAAKILAIVSILFIVLSTIALSLNTLPELQETDEFGQLNDNRQLAHVEAVCIAWFTMEYLLRFLSSPNKWKFFKGPLNVIDLLAILPYYVTIFLTESNKSVLQFQNVRRVVQIFRIMRILRILKLARHSTGLQSLGFTLRRSYNELGLLILFLAMGIMIFSSLVFFAEKDEDATKFTSIPASFWWATITMTTVGYGDIYPKTLLGKIVGGLCCIAGVLVIALPIPIIVNNFSEFYKEQKRQEKAIKRREALERAKRNGSIVSMNLKDAFARSMELIDVAVEKAGESANTKDSADDNHLSPSRWKWARKALSETSSNKSFENKYQEVSQKDSHEQLNNTSSSSPQHLSAQKLEMLYNEITKTQPHSHPNPDCQEKPERPSAYEEEIEMEEVVCPQEQLAVAQTEVIVDMKSTSSIDSFTSCATDFTETERSPLPPPSASHLQMKFPTDLPGTEEHQRARGPPFLTLSREKGPAARDGTLEYAPVDITVNLDASGSQCGLHSPLQSDNATDSPKSSLKGSNPLKSRSLKVNFKENRGSAPQTPPSTARPLPVTTADFSLTTPQHISTILLEETPSQGDRPLLGTEVSAPCQGPSKGLSPRFPKQKLFPFSSRERRSFTEIDTGDDEDFLELPGAREEKQVDSSPNCFADKPSDGRDPLREEGSVGSSSPQDTGHNCRQDIYHAVSEVKKDSSQEGCKMENHLFAPEIHSNPGDTGYCPTRETSM

KCNB2

Potassium voltage-gated channel subfamily B member 2

911 amino acids

Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain and smooth muscle cells. Channels open or close in response to the voltage difference across the membrane, letting potassium ions pass in accordance with their electrochemical gradient. Homotetrameric channels mediate a delayed-rectifier voltage-dependent outward potassium current that display rapid activation and slow inactivation in response to membrane depolarization. Can form functional homotetrameric and heterotetrameric channels that contain variable proportions of KCNB1; channel properties depend on the type of alpha subunits that are part of the channel. Can also form functional heterotetrameric channels with other alpha subunits that are non-conducting when expressed alone, such as KCNS1 and KCNS2, creating a functionally diverse range of channel complexes. In vivo, membranes probably contain a mixture of heteromeric potassium channel complexes, making it difficult to assign currents observed in intact tissues to any particular potassium channel family member. Contributes to the delayed-rectifier voltage-gated potassium current in cortical pyramidal neurons and smooth muscle cells.

Belongs to the potassium channel family. B (Shab) (TC 1.A.1.2) subfamily. Kv2.2/KCNB2 sub-subfamily.

102.279 kDa

MAEKAPPGLNRKTSRSTLSLPPEPVDIIKSKTCSRRVKINVGGLNHEVLWRTLDRLPRTRLGKLRDCNTHESLLEVCDDYNLGDNEYFFDRHPGAFTSILNFYRTGKLHMMEEMCALSFGQELDYWGIDEIYLESCCQARYHQKKEQMNEELRREAETMREREGEEFDNTCCPEKRKKLWDLLEKPNSSVAAKILAIVSILFIVLSTIALSLNTLPELQETDEFGQPSDNPKLAHVEAVCIAWFTMEYLLRFLSSPNKWKFFKGPLNVIDLLAILPYYVTIFLTESNKSVLQFQNVRRVVQIFRIMRILRILKLARHSTGLQSLGFTLRRSYNELGLLILFLAMGIMIFSSLVFFAEKDEDATKFTSIPASFWWATITMTTVGYGDIYPKTLLGKIVGGLCCIAGVLVIALPIPIIVNNFSEFYKEQKRQEKAIKRREALERAKRNGSIVSMNLKDAFARSMELIDVAVEKAGETANTKDSADDNHLSPSRWKWARKALSESSSNKSYENKYQEVSQKDSHEQLNNTSSSSPQHLSAQKLEMLYNEITKTQPHSHQAPDCQEQPERPSAYEEEIEMEEVVCPQEQLAVAQTEVIVDMKSTSSIDSFTSCATDFTETERSPLPPPSASHLHMKFPTDFPGTEEHQRARGPPFLTLTREKGPAAREGALEYSPIDITVNLDAGSSQCGLHGPLQSDSATDSPKSSLKGSNPLKSRSLKVNFKENRGSAPQTPPSTARPLPVTTADFSLSTPQHISTILLEESPAQGDRLLLDAELPAQCQGLAKGLSPRFPKQKLFAFSSRERRSFTEIDTGEDEDFLELQGARADKQADSSPNCFAEKPSDARHPLSEEGCGGSSSPPNTGHNCRQDSFHAVGEVQKDSSQEGYKMENHLFAPEIHSNPGDTGYCPTRETSM

Kcnb2

Potassium voltage-gated channel subfamily B member 2

907 amino acids

Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain and smooth muscle cells. Channels open or close in response to the voltage difference across the membrane, letting potassium ions pass in accordance with their electrochemical gradient. Homotetrameric channels mediate a delayed-rectifier voltage-dependent outward potassium current that display rapid activation and slow inactivation in response to membrane depolarization. Can form functional homotetrameric and heterotetrameric channels that contain variable proportions of KCNB1; channel properties depend on the type of alpha subunits that are part of the channel. Can also form functional heterotetrameric channels with other alpha subunits that are non-conducting when expressed alone, such as KCNS1 and KCNS2, creating a functionally diverse range of channel complexes. In vivo, membranes probably contain a mixture of heteromeric potassium channel complexes, making it difficult to assign currents observed in intact tissues to any particular potassium channel family member. Contributes to the delayed-rectifier voltage-gated potassium current in cortical pyramidal neurons and smooth muscle cells.

Belongs to the potassium channel family. B (Shab) (TC 1.A.1.2) subfamily. Kv2.2/KCNB2 sub-subfamily.

102.336 kDa

MAEKAPPGLNRKTSRSTLSLPPEPVDIIRSKTCSRRVKINVGGLNHEVLWRTLDRLPRTRLGKLRDCNTHESLLEVCDDYNLNENEYFFDRHPGAFTSILNFYRTGKLHMMEEMCALSFGQELDYWGIDEIYLESCCQARYHQKKEQMNEELRREAETMREREGEEFDNTCCPEKRKKLWDLLEKPNSSVAAKILAIVSILFIVLSTIALSLNTLPELQENDEFGQPSDNRKLAHVEAVCIAWFTMEYLLRFLSSPNKWKFFKGPLNVIDLLAILPYYVTIFLTESNKSVLQFQNVRRVVQIFRIMRILRILKLARHSTGLQSLGFTLRRSYNELGLLILFLAMGIMIFSSLVFFAEKDEDATKFTSIPASFWWATITMTTVGYGDIYPKTLLGKIVGGLCCIAGVLVIALPIPIIVNNFSEFYKEQKRQEKAIKRREALERAKRNGSIVSMNLKDAFARSMELIDVAVEKAGESANTKDSVDDNHLSPSRWKWARKALSETSSNKSYENKYQEVSQNDSHEHLNNTSSSSPQHLSAQKLEMLYNEITKTQPHSHPNPDCQEQPERPCVYEEEIEMEEVICPQEQLAVAQTEVIVDMKSTSSIDSFTSCATDFTETERSPLPPPSASHLQMKFPTDLPGTDEHQRARAPPFLTLSRDKGPAAREAAVDYAPIDITVNLDAGASHGPLQPDSASDSPKSSLKGSNPLKSRSLKVNFQENRASAPQTPPSTARPLPVTTADFPLTTPQHMSTILLEEALPQGQPPLLEADDSAHCQGPSKGFSPRFPKQKLFPFSSRERRSFTEIDTGEDEDFLDLQRSRPDKQADPSPNCLADKPGDARDSLREEGCVGSSSPQNTDHNCRQDIYQAVGEVKKDSSQEGYKMENHLFAPEIHSNPGDTGHCPTRETSM

Kcnb2

Potassium voltage-gated channel subfamily B member 2

907 amino acids

Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain and smooth muscle cells (PubMed:1550672). Channels open or close in response to the voltage difference across the membrane, letting potassium ions pass in accordance with their electrochemical gradient. Homotetrameric channels mediate a delayed-rectifier voltage-dependent outward potassium current that display rapid activation and slow inactivation in response to membrane depolarization (PubMed:1550672). Can form functional homotetrameric and heterotetrameric channels that contain variable proportions of KCNB1; channel properties depend on the type of alpha subunits that are part of the channel (PubMed:20202934). Can also form functional heterotetrameric channels with other alpha subunits that are non-conducting when expressed alone, such as KCNS1 and KCNS2, creating a functionally diverse range of channel complexes (PubMed:9305895). In vivo, membranes probably contain a mixture of heteromeric potassium channel complexes, making it difficult to assign currents observed in intact tissues to any particular potassium channel family member. Contributes to the delayed-rectifier voltage-gated potassium current in cortical pyramidal neurons and smooth muscle cells (PubMed:1550672, PubMed:20202934).

Belongs to the potassium channel family. B (Shab) (TC 1.A.1.2) subfamily. Kv2.2/KCNB2 sub-subfamily.

102.096 kDa

MAEKAPPGLNRKTSRSTLSLPPEPVDIIRSKTCSRRVKINVGGLNHEVLWRTLDRLPRTRLGKLRDCNTHESLLEVCDDYNLNENEYFFDRHPGAFTSILNFYRTGKLHMMEEMCALSFGQELDYWGIDEIYLESCCQARYHQKKEQMNEELRREAETMRDGEGEEFDNTCCPEKRKKLWDLLEKPNSSVAAKILAIVSILFIVLSTIALSLNTLPELQENDEFGQPSDNRKLAHVEAVCIAWFTMEYLLRFLSSPNKWKFFKGPLNVIDLLAILPYYVTIFLTESNKSVLQFQNVRRVVQIFRIMRILRILKLARHSTGLQSLGFTLRRSYNELGLLILFLAMGIMIFSSLVFFAEKDEDATKFTSIPASFWWATITMTTVGYGDIYPKTLLGKIVGGLCCIAGVLVIALPIPIIVNNFSEFYKEQKRQEKAIKRREALERAKRNGSIVSMNLKDAFARSMELIDVAVEKAGESANIKDSVDDNHLSPSRWKWARKALSETSSNKSYENKYQEVSQKDSHEQLNNTSSSSPQHLSAQKLEMLYNEITKTQTHSHPNPDCQEQPERPSAYEEEIEMEEVVCPQEQLAVAQTEVIVDMKSTSSIDSFTSCATDFTETERSPLPPPSASHLQMKFPTDLPGMDEHQRVRAPPFLTLSRDKGPAAREAALDYAPIDITVNLDAGASHGPLQPDSASDSPKSSLKGSNPLKSRSLKVNFQENRGSAPQTPPSTARPLPVTTADFPLTTPQHMSTILLEESPPPGTETLPGADVSAHCQGPSKGLSPRVPKQKLFPFSSRERRSFTEIDTGEDEDFLDLQRPRPDKQADPSPNCLADKPGEARDPLREEGCVGSSSPQNTDHNCRQDIYQAVGEVKKDSSQEGYKMENHLFAPEIHSNPGDTGYCPTRETSM

KCNB2

Potassium voltage-gated channel subfamily B member 2

809 amino acids

Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain and smooth muscle cells (PubMed:9612272). Channels open or close in response to the voltage difference across the membrane, letting potassium ions pass in accordance with their electrochemical gradient. Homotetrameric channels mediate a delayed-rectifier voltage-dependent outward potassium current that display rapid activation and slow inactivation in response to membrane depolarization (PubMed:9612272). Can form functional homotetrameric and heterotetrameric channels that contain variable proportions of KCNB1; channel properties depend on the type of alpha subunits that are part of the channel. Can also form functional heterotetrameric channels with other alpha subunits that are non-conducting when expressed alone, such as KCNS1 and KCNS2, creating a functionally diverse range of channel complexes. In vivo, membranes probably contain a mixture of heteromeric potassium channel complexes, making it difficult to assign currents observed in intact tissues to any particular potassium channel family member. Contributes to the delayed-rectifier voltage-gated potassium current in cortical pyramidal neurons and smooth muscle cells (By similarity).

Belongs to the potassium channel family. B (Shab) (TC 1.A.1.2) subfamily. Kv2.2/KCNB2 sub-subfamily.

90.602 kDa

single

MAEKAPPGLNRKTSRSTLSLPPEPVDIIRSKTCSRRVKINVGGLNHEVLWRTPDRLPRTRLGKLRDCNTHESLLEVCDDYNLGHNEYFFDRHPGAFTSILNFYRTGKLHMMEEMCALSVGQELDYWGIDEIYLESCCQARYHQKKEQMNEELRREAETMRDGEGEEFDNTCCPEKRKKSRDLLEKPNSSVAAKILAIVSNLFIVLSTIALSLNTLPELQEMDEFGQPNDNPQLAHVEAVCNAWFTMEYLLRFLSSPNKWKFFKGPLNVIDLLAILPYYVTIFLTESNKSVLQFQNVRRVVQIFRIMRILRILKLARHSTGLQSLGFTLRRSYNELGLLILFLAMGIMIFSSLVFFAEKDADATKFTSIPASFWWATITMTTVGYGDIYPKTLLGKSVGGLCCIAGVLVIALPIPIIVPPFSEFYKEQKRQEKAIKRREALERAKRNGSIVSMNLKDAFARSMELIDVAVEKAGESSSTKDSADDNHLSPSRWKWARKALSETSSNKSYENKYQEVSQKDSHEQLNNTSSSSPQHLSAQKLEMLYNEITKTQPHPAPNPDGQEQPDRPSAYEEEIEMEEVVCPQEQLAVAQGEVIVDMKSTSSIDSFTSCATDFTETERSPLPPLSASHLQMRFPPDLAGTDEHQRARGPPFLMLARGKGPAGRDAILEYAPVDITVSLDASGSKVGSHGPLQPDSASESPKSSLKGSNPLKSRSLRVNFKENRGSAPQTPPSTARPLPVTTADFSLTAPQLISTILLEETPSQGDRPLLGAEGSAHCQGPSKGLSPRFPKQKLFPFSSRERRSFTEIDT