Merck
CN
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文件

安全信息

C7802

Sigma-Aldrich

Charybdotoxin

≥90% (HPLC)

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经验公式（希尔记法）:
C176H277N57O55S7
CAS号:
95751-30-7
分子量:
4295.89
MDL编号:
MFCD00146378
NACRES:
NA.32

质量水平

200

检测方案

≥90% (HPLC)

形式

powder

储存温度

−20°C

InChI

1S/C176H277N57O55S7/c1-81(2)58-106-149(263)213-110(62-91-67-191-80-197-91)152(266)215-112(64-127(183)246)156(270)231-135(85(8)240)170(284)219-114(69-234)157(271)200-95(36-25-54-192-174(185)186)138(252)196-68-130(249)199-96(32-17-21-50-177)139(253)222-120-75-291-295-79-124(226-159(273)116(71-236)218-167(281)132(82(3)4)228-155(269)113(65-128(184)247)216-169(283)134(84(7)239)230-154(268)108(59-88-28-13-12-14-29-88)210-145(259)102-44-47-129(248)198-102)166(280)232-137(87(10)242)172(286)233-136(86(9)241)171(285)220-115(70-235)158(272)204-98(34-19-23-52-179)141(255)206-104(45-48-131(250)251)147(261)225-122-77-292-290-74-119(223-143(257)99(35-20-24-53-180)201-140(254)97(33-18-22-51-178)203-153(267)111(63-126(182)245)214-148(262)105(49-57-289-11)208-162(120)276)161(275)205-101(38-27-56-194-176(189)190)144(258)224-121(164(278)211-107(60-89-39-41-92(243)42-40-89)150(264)221-118(73-238)173(287)288)76-293-294-78-123(163(277)207-103(43-46-125(181)244)146(260)202-100(142(256)209-106)37-26-55-193-175(187)188)227-168(282)133(83(5)6)229-160(274)117(72-237)217-151(265)109(212-165(122)279)61-90-66-195-94-31-16-15-30-93(90)94/h12-16,28-31,39-42,66-67,80-87,95-124,132-137,195,234-243H,17-27,32-38,43-65,68-79,177-180H2,1-11H3,(H2,181,244)(H2,182,245)(H2,183,246)(H2,184,247)(H,191,197)(H,196,252)(H,198,248)(H,199,249)(H,200,271)(H,201,254)(H,202,260)(H,203,267)(H,204,272)(H,205,275)(H,206,255)(H,207,277)(H,208,276)(H,209,256)(H,210,259)(H,211,278)(H,212,279)(H,213,263)(H,214,262)(H,215,266)(H,216,283)(H,217,265)(H,218,281)(H,219,284)(H,220,285)(H,221,264)(H,222,253)(H,223,257)(H,224,258)(H,225,261)(H,226,273)(H,227,282)(H,228,269)(H,229,274)(H,230,268)(H,231,270)(H,232,280)(H,233,286)(H,250,251)(H,287,288)(H4,185,186,192)(H4,187,188,193)(H4,189,190,194)/t84-,85-,86-,87-,95+,96+,97+,98+,99+,100+,101+,102+,103+,104+,105+,106+,107+,108+,109+,110+,111+,112+,113+,114+,115+,116+,117+,118+,119+,120+,121+,122+,123+,124+,132+,133+,134+,135+,136+,137+/m1/s1

InChI key

CNVQLPPZGABUCM-LIGYZCPXSA-N

Gene Information

human ... KCNA3(3738)
mouse ... KCNA3(16491)
rat ... KCNA3(29731)

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Amino Acid Sequence

Glp-Phe-Thr-Asn-Val-Ser-Cys-Thr-Thr-Ser-Lys-Glu-Cys-Trp-Ser-Val-Cys-Gln-Arg-Leu-His-Asn-Thr-Ser-Arg-Gly-Lys-Cys-Met-Asn-Lys-Lys-Cys-Arg-Cys-Tyr-Ser [Disulfide Bridges: 7-28, 13-33, 17-35]

应用

Charybdotoxin has been used:
  • in the inhibition of endothelium-derived hyperpolarizing factor responses
  • in electrophysiological studies, as calcium channel blockers
  • as a transport inhibitor

生化/生理作用

Charybdotoxin (ChTX) is a scorpion venom, which blocks a voltage-gated potassium channel, by binding to the extracellular loop of the potassium channel.
High (BK) or intermediate (IK1) conductance calcium-activated and voltage-gated (Kv1.3) channel blocker.
Potent and selective inhibitor of the Ca2+-activated K+ channel present in GH3 anterior pituitary cells and primary bovine aortic smooth muscle cells.

其他说明

Peptide found in the venom of the scorpion Leiurus quinquestriatus.

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

法规信息

高风险级别生物产品--毒素类产品

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Transepithelial impedance analysis of chloride secretion.
Ashvani K Singh et al.
Methods in molecular medicine, 70, 129-142 (2002-03-29)
Solution structure of extracellular loop of human beta4 subunit of BK channel and its biological implication on ChTX sensitivity
Wang Y, et al.
Scientific Reports, 8(1), 4571-4571 (2018)
Cultured heart cells from oyster: an experimental approach for evaluation of the toxicity of the marine pollutant tributyltin
Droguet M, et al.
Aquatic Living Resources, 25(2), 185-194 (2012)
J M Doughty et al.
The American journal of physiology, 276(3 Pt 2), H1107-H1112 (1999-03-10)
In rat mesenteric artery, endothelium-derived hyperpolarizing factor (EDHF) is blocked by a combination of apamin and charybdotoxin (ChTX). The site of action of these toxins has not been established. We compared the effects of ChTX and apamin applied selectively to
The charybdotoxin family of K+ channel-blocking peptides.
C Miller
Neuron, 15(1), 5-10 (1995-07-01)
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