Voltage-gated potassium channel subunit beta-1 is a protein that in humans is encoded by the KCNAB1 gene. [5] [6] [7]
Potassium channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. Four sequence-related potassium channel genes - shaker, shaw, shab, and shal - have been identified in Drosophila, and each has been shown to have human homolog(s). This gene encodes a member of the potassium channel, voltage-gated, shaker-related subfamily. This member includes three distinct isoforms that are encoded by three alternatively spliced transcript variants of this gene. These three isoforms are beta subunits, which form heteromultimeric complex with alpha subunits and modulate the activity of the pore-forming alpha subunits. [7]
Potassium voltage-gated channel subfamily A member 1 also known as Kv1.1 is a shaker related voltage-gated potassium channel that in humans is encoded by the KCNA1 gene. Isaacs syndrome is a result of an autoimmune reaction against the Kv1.1 ion channel.
K+ channel tetramerisation domain is the N-terminal, cytoplasmic tetramerisation domain (T1) of voltage-gated K+ channels. It defines molecular determinants for subfamily-specific assembly of alpha-subunits into functional tetrameric channels. It is distantly related to the BTB/POZ domain Pfam PF00651.
Potassium voltage-gated channel, shaker-related subfamily, member 5, also known as KCNA5 or Kv1.5, is a protein that in humans is encoded by the KCNA5 gene.
Potassium voltage-gated channel subfamily D member 2 is a protein that in humans is encoded by the KCND2 gene. It contributes to the cardiac transient outward potassium current (Ito1), the main contributing current to the repolarizing phase 1 of the cardiac action potential.
Potassium voltage-gated channel subfamily A member 2 also known as Kv1.2 is a protein that in humans is encoded by the KCNA2 gene.
Potassium voltage-gated channel subfamily A member 4 also known as Kv1.4 is a protein that in humans is encoded by the KCNA4 gene. It contributes to the cardiac transient outward potassium current (Ito1), the main contributing current to the repolarizing phase 1 of the cardiac action potential.
G protein-activated inward rectifier potassium channel 1(GIRK-1) is encoded in the human by the gene KCNJ3.
Voltage-dependent L-type calcium channel subunit beta-4 is a protein that in humans is encoded by the CACNB4 gene.
Potassium voltage-gated channel subfamily D member 3 also known as Kv4.3 is a protein that in humans is encoded by the KCND3 gene. It contributes to the cardiac transient outward potassium current (Ito1), the main contributing current to the repolarizing phase 1 of the cardiac action potential.
Voltage-gated potassium channel subunit beta-2 is a protein that in humans is encoded by the KCNAB2 gene.
Calcium-activated potassium channel subunit beta-2 is a protein that in humans is encoded by the KCNMB2 gene.
Calcium-activated potassium channel subunit beta-3 is a protein that in humans is encoded by the KCNMB3 gene.
Calcium-activated potassium channel subunit beta-4 is a protein that in humans is encoded by the KCNMB4 gene.
Potassium voltage-gated channel, Shal-related subfamily, member 1 (KCND1), also known as Kv4.1, is a human gene.
Potassium voltage-gated channel subfamily A member 7 also known as Kv1.7 is a protein that in humans is encoded by the KCNA7 gene. The protein encoded by this gene is a voltage-gated potassium channel subunit. It may contribute to the cardiac transient outward potassium current (Ito1), the main contributing current to the repolarizing phase 1 of the cardiac action potential.
Potassium voltage-gated channel subfamily A member 10 also known as Kv1.8 is a protein that in humans is encoded by the KCNA10 gene. The protein encoded by this gene is a voltage-gated potassium channel subunit.
Potassium voltage-gated channel subfamily G member 3 is a protein that in humans is encoded by the KCNG3 gene. The protein encoded by this gene is a voltage-gated potassium channel subunit.
Potassium voltage-gated channel subfamily V member 1 is a protein that in humans is encoded by the KCNV1 gene. The protein encoded by this gene is a voltage-gated potassium channel subunit.
Potassium voltage-gated channel subfamily S member 2 is a protein that in humans is encoded by the KCNS2 gene. The protein encoded by this gene is a voltage-gated potassium channel subunit.
Voltage-gated potassium channel subunit beta-3 is a protein that in humans is encoded by the KCNAB3 gene. The protein encoded by this gene is a voltage-gated potassium channel beta subunit.
This article incorporates text from the United States National Library of Medicine, which is in the public domain.