Recombinant Human Potassium voltage-gated channel subfamily B member 2 (KCNB2), Truncated

Uniprot Id

Q92953

Target Species

Human

Target Name

KCNB2

Target Full Name

Potassium voltage-gated channel subfamily B member 2

Target Function

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

Target Subcellular Location

Cell membrane; Multi-pass membrane protein. Perikaryon. Cell projection, dendrite.

Target Protein Families

Potassium channel family, B (Shab) (TC 1.A.1.2) subfamily, Kv2.2/KCNB2 sub-subfamily

Target Synonyms

delayed rectifier potassium channel protein; KCNB2; KCNB2_HUMAN; potassium channel Kv2.2; potassium voltage gated channel subfamily B member 2; Potassium voltage-gated channel subfamily B member 2; Voltage-gated potassium channel subunit Kv2.2