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Kaliotoxin,CAS#:145199-73-1,Catalog Number:K1070-V,Store at -20°C or -80°C
Potent blocker of voltage-sensitive K+ channels (IC50 values are 0.1, 1.1 and 25 nM for KV1.3, KV1.1 and KV1.2 channels) respectively). Also inhibits Ca2+-activated K+ channels.
Kaliotoxin is a 4-kDa polypeptide chain, containing 38 amino acids. The formula is C171H283N55O49S8. The sequence has a large homology with iberiotoxin from Buthus tumulus, charybdotoxin from Leiurus quinquestriatus and noxiustoxin from Centruroides noxius. An Important site of the toxin is the K27 side chain (a lysine at place 27 of the protein sequence), which enters the pore and protrudes into the selectivity filter of the channel. (Lange A et al., Korukottu J et al.)
KTX binds to the Kv1.3 voltage-gated potassium channel and the Calcium-activated potassium channels (BK channels). (Lange A et al., Crest M et al., Zachariae U et al., Aiyar J et al.,) These channels control several regulating processes, including neurotransmitter release, heart rate, insulin secretion, smooth muscle contraction. (Wickenden A et al.) Kv1.3 channels also play a critical role in regulating the function of effector memory T cells, the subset implicated in many autoimmune disorders, and blockade of Kv1.3 channels by kaliotoxin ameliorates disease in rat models of multiple sclerosis and bone resorption due to periodontitis. (Beeton C et al., Valverde P et al., Cahalan and Chandy)
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Kaliotoxin,CAS#:145199-73-1,Catalog Number:K1070-V,Store at -20°C or -80°C
Potent blocker of voltage-sensitive K+ channels (IC50 values are 0.1, 1.1 and 25 nM for KV1.3, KV1.1 and KV1.2 channels) respectively). Also inhibits Ca2+-activated K+ channels.
Kaliotoxin is a 4-kDa polypeptide chain, containing 38 amino acids. The formula is C171H283N55O49S8. The sequence has a large homology with iberiotoxin from Buthus tumulus, charybdotoxin from Leiurus quinquestriatus and noxiustoxin from Centruroides noxius. An Important site of the toxin is the K27 side chain (a lysine at place 27 of the protein sequence), which enters the pore and protrudes into the selectivity filter of the channel. (Lange A et al., Korukottu J et al.)
KTX binds to the Kv1.3 voltage-gated potassium channel and the Calcium-activated potassium channels (BK channels). (Lange A et al., Crest M et al., Zachariae U et al., Aiyar J et al.,) These channels control several regulating processes, including neurotransmitter release, heart rate, insulin secretion, smooth muscle contraction. (Wickenden A et al.) Kv1.3 channels also play a critical role in regulating the function of effector memory T cells, the subset implicated in many autoimmune disorders, and blockade of Kv1.3 channels by kaliotoxin ameliorates disease in rat models of multiple sclerosis and bone resorption due to periodontitis. (Beeton C et al., Valverde P et al., Cahalan and Chandy)