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Merck
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Key Documents

M8278

Sigma-Aldrich

Margatoxin

Sinónimos:

MgTx

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About This Item

Fórmula empírica (notación de Hill):
C178H286N52O50S7
Número de CAS:
145808-47-5
Peso molecular:
4178.95
MDL number:
MFCD00132225
UNSPSC Code:
12352200
NACRES:
NA.32

form

powder

Quality Level

200

storage temp.

−20°C

InChI

1S/C178H286N52O50S7/c1-15-91(7)140(225-172(273)141(92(8)16-2)224-169(270)138(190)96(12)233)171(272)211-114(75-134(189)240)158(259)223-139(90(5)6)170(271)208-107(43-25-31-64-184)153(254)221-125-87-287-283-83-121-161(262)206-111(58-69-281-14)157(258)210-113(74-133(188)239)147(248)194-78-136(242)199-102(38-20-26-59-179)149(250)217-120-82-282-284-84-122(220-156(257)110(54-57-132(187)238)205-150(251)106(42-24-30-63-183)207-166(267)126-44-33-66-228(126)176(277)119(81-232)216-173(274)142(97(13)234)226-165(125)266)163(264)212-115(70-89(3)4)174(275)230-68-35-47-129(230)177(278)229-67-34-46-128(229)168(269)222-124(86-286-285-85-123(219-152(253)105(204-160(120)261)41-23-29-62-182)164(265)213-116(72-99-48-50-101(235)51-49-99)175(276)227-65-32-45-127(227)167(268)214-117(178(279)280)73-100-76-191-88-195-100)162(263)203-103(39-21-27-60-180)148(249)198-95(11)145(246)202-109(53-56-131(186)237)155(256)209-112(71-98-36-18-17-19-37-98)146(247)193-79-137(243)200-108(52-55-130(185)236)154(255)215-118(80-231)159(260)197-93(9)143(244)192-77-135(241)196-94(10)144(245)201-104(151(252)218-121)40-22-28-61-181/h17-19,36-37,48-51,76,88-97,102-129,138-142,231-235H,15-16,20-35,38-47,52-75,77-87,179-184,190H2,1-14H3,(H2,185,236)(H2,186,237)(H2,187,238)(H2,188,239)(H2,189,240)(H,191,195)(H,192,244)(H,193,247)(H,194,248)(H,196,241)(H,197,260)(H,198,249)(H,199,242)(H,200,243)(H,201,245)(H,202,246)(H,203,263)(H,204,261)(H,205,251)(H,206,262)(H,207,267)(H,208,271)(H,209,256)(H,210,258)(H,211,272)(H,212,264)(H,213,265)(H,214,268)(H,215,255)(H,216,274)(H,217,250)(H,218,252)(H,219,253)(H,220,257)(H,221,254)(H,222,269)(H,223,259)(H,224,270)(H,225,273)(H,226,266)(H,279,280)

InChI key

OVJBOPBBHWOWJI-UHFFFAOYSA-N

Gene Information

human ... CACNA1D(776)
mouse ... CACNA1D(12289)
rat ... CACNA1D(29716)

Amino Acid Sequence

Thr-Ile-Ile-Asn-Val-Lys-Cys-Thr-Ser-Pro-Lys-Gln-Cys-Leu-Pro-Pro-Cys-Lys-Ala-Gln-Phe-Gly-Gln-Ser-Ala-Gly-Ala-Lys-Cys-Met-Asn-Gly-Lys-Cys-Lys-Cys-Tyr-Pro-His [Disulfide Bridges: 7-29; 13-34; 17-36]

Biochem/physiol Actions

Margatoxin is an α-KTx toxin, which is majorly used in ion channel research. It is a 39-amino acid peptide, which is a specific K(V)1.3 channel voltage-dependent K+ channel blocker. Margatoxin is an immunosuppressant that is isolated from the venom of the scorpion Centruroides margaritatus.

Other Notes

Toxin in Centruroides margaritatus (scorpion)

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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I Kazama et al.
The journal of physiological sciences : JPS, 62(3), 267-274 (2012-02-14)
Lymphocytes are of rich in delayed rectifier K(+)-channels (Kv1.3) in their plasma membranes, and the channels play crucial roles in the lymphocyte activation and proliferation. Since chloroquine, a widely used anti-malarial drug, exerts immunosuppressive effects, it will affect the channel
Aleksandra Novakovic et al.
Basic & clinical pharmacology & toxicology, 111(1), 24-30 (2012-01-10)
The ATP-sensitive K(+) channels opener (K(ATP)CO), P1075 [N-cyano-N'-(1,1-dimethylpropyl)-N″-3-pyridylguanidine], has been shown to cause relaxation of various isolated animal and human blood vessels by opening of vascular smooth muscle ATP-sensitive K(+) (K(ATP)) channels. In addition to the well-known effect on the
Raveendra Anangi et al.
PloS one, 7(12), e52965-e52965 (2013-01-10)
The K(v)1.3 voltage-gated potassium channel regulates membrane potential and calcium signaling in human effector memory T cells that are key mediators of autoimmune diseases such as multiple sclerosis, type 1 diabetes, and rheumatoid arthritis. Thus, subtype-specific K(v)1.3 blockers have potential
Paulo D Koeberle et al.
Channels (Austin, Tex.), 4(5), 337-346 (2010-08-12)
Retinal ganglion cell (RGC) degeneration is an important cause of visual impairment, and results in part from microglia-mediated inflammation. Numerous experimental studies have focused on identifying drug targets to rescue these neurons. We recently showed that K(V)1.1 and K(V)1.3 channels
Margatoxin is a non-selective inhibitor of human Kv1.3 K+ channels.
Bartok A
Toxicon, 87, 6-16 (2014)
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