Potassium voltage-gated channel, Shal-related subfamily, member 1 (KCND1), also known as Kv4.1, is a human gene.
Voltage-gated potassium (Kv) 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, shal-related subfamily, members of which form voltage-activated A-type potassium ion channels and are prominent in the repolarization phase of the action potential. This gene is expressed at moderate levels in all tissues analyzed, with lower levels in skeletal muscle.
Isbrandt D, Leicher T, Waldschütz R, et al. (2000). "Gene structures and expression profiles of three human KCND (Kv4) potassium channels mediating A-type currents I(TO) and I(SA)". Genomics. 64 (2): 144–54. doi:10.1006/geno.2000.6117. PMID10729221.
Nakamura TY, Nandi S, Pountney DJ, et al. (2001). "Different effects of the Ca(2+)-binding protein, KChIP1, on two Kv4 subfamily members, Kv4.1 and Kv4.2". FEBS Lett. 499 (3): 205–9. doi:10.1016/S0014-5793(01)02560-1. PMID11423117.
Kim SJ, Choi WS, Han JS, et al. (2005). "A novel mechanism for the suppression of a voltage-gated potassium channel by glucose-dependent insulinotropic polypeptide: protein kinase A-dependent endocytosis". J. Biol. Chem. 280 (31): 28692–700. doi:10.1074/jbc.M504913200. PMID15955806.