Name: Scyllatoxin
Brand: SIGMA

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About This Item

CAS Number:

116235-63-3

MDL number:

MFCD00671413

UNSPSC Code:

12352200

PubChem Substance ID:

329824519

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recombinant

expressed in E. coli

Assay

≥95% (HPLC)

form

lyophilized powder

shipped in

wet ice

storage temp.

−20°C

SMILES string

CC[C@H](C)[C@H](NC(=O)[C@H](CS)NC(=O)[C@H](CCCCN)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@H](CO)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CS)NC(=O)[C@H](CO)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CS)NC(=O)[C@H](CCSC)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CS)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](C)N)C(=O)NCC(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CS)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CS)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](Cc2c[nH]cn2)C(N)=O

InChI

1S/C142H243N45O39S7/c1-17-75(14)112(139(225)159-59-108(194)163-95(55-110(197)198)130(216)164-80(32-22-25-42-144)121(207)180-98(62-227)135(221)168-85(37-39-109(195)196)123(209)183-102(66-231)137(223)186-111(74(12)13)140(226)170-81(33-23-26-43-145)119(205)171-87(113(149)199)53-78-56-154-68-160-78)187-138(224)103(67-232)182-117(203)79(31-21-24-41-143)161-106(192)57-157-115(201)88(47-69(2)3)173-125(211)90(49-71(6)7)162-107(193)58-158-116(202)89(48-70(4)5)174-131(217)96(60-188)178-120(206)83(35-28-45-156-142(152)153)166-133(219)100(64-229)185-132(218)97(61-189)179-127(213)92(51-73(10)11)175-122(208)84(36-38-104(147)190)167-134(220)99(63-228)181-124(210)86(40-46-233-16)169-118(204)82(34-27-44-155-141(150)151)165-126(212)91(50-72(8)9)176-129(215)94(54-105(148)191)177-136(222)101(65-230)184-128(214)93(172-114(200)76(15)146)52-77-29-19-18-20-30-77/h18-20,29-30,56,68-76,79-103,111-112,188-189,227-232H,17,21-28,31-55,57-67,143-146H2,1-16H3,(H2,147,190)(H2,148,191)(H2,149,199)(H,154,160)(H,157,201)(H,158,202)(H,159,225)(H,161,192)(H,162,193)(H,163,194)(H,164,216)(H,165,212)(H,166,219)(H,167,220)(H,168,221)(H,169,204)(H,170,226)(H,171,205)(H,172,200)(H,173,211)(H,174,217)(H,175,208)(H,176,215)(H,177,222)(H,178,206)(H,179,213)(H,180,207)(H,181,210)(H,182,203)(H,183,209)(H,184,214)(H,185,218)(H,186,223)(H,187,224)(H,195,196)(H,197,198)(H4,150,151,155)(H4,152,153,156)/t75-,76-,79-,80-,81-,82-,83-,84-,85-,86-,87-,88-,89-,90-,91-,92-,93-,94-,95-,96-,97-,98-,99-,100-,101-,102-,103-,111-,112-/m0/s1

InChI key

MXWDLLUGULWYIQ-BFRWRHKQSA-N

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Amino Acid Sequence

Ala-Phe-Cys-Asn-Leu-Arg-Met-Cys-Gln-Leu-Ser-Cys-Arg-Ser-Leu-Gly-Leu-Leu-Gly-Lys-Cys-Ile-Gly-Asp-Lys-Cys-Glu-Cys-Val-Lys-His-NH₂

Biochem/physiol Actions

Blocks small-conductance Ca²⁺-activated K⁺ channels.

Recombinant peptide of scyllatoxin, a 31 amino acid long toxin, originally isolated from the venom of the scorpion Leiurus quinquestriatus hebraeus; selective blocker of apamin-sensitive small-conductance Ca²⁺-activated K⁺ channels (SK channels) with highest affinity towards K_ca2.2.

Scyllatoxin was used to study small-conductance Ca²⁺-activated K⁺ channel signaling in rat superior cervical ganglion neurons. Myometrial strips from non-pregnant women were treated with Scyllatoxin to study the NO-induced relaxation of endometrium.

Preparation Note

Stock solution of 1 μm can be obtained by adding 0.292 mL of any conventional buffer per μg of protein.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number

127K1416

087K1554

105K1485

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