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S6545

Sigma-Aldrich

Sarafotoxin S6c

≥97% (HPLC)

Synonym(s):

SRTX-c

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About This Item

Empirical Formula (Hill Notation):
C103H147N27O37S5
CAS Number:
Molecular Weight:
2515.75
MDL number:
UNSPSC Code:
51111800
PubChem Substance ID:
NACRES:
NA.32

Quality Level

Assay

≥97% (HPLC)

storage temp.

−20°C

SMILES string

CCC(C)C(NC(=O)C(NC(=O)C(CC(O)=O)NC(=O)C(CCC(N)=O)NC(=O)C(Cc1cnc[nH]1)NC(=O)C2CSSCC(N)C(=O)NC(C(C)O)C(=O)NC3CSSCC(NC(=O)C(CCC(O)=O)NC(=O)C(CCC(O)=O)NC(=O)C(CC(O)=O)NC(=O)C(NC(=O)C(CCSC)NC(=O)C(CC(O)=O)NC(=O)C(CC(N)=O)NC3=O)C(C)O)C(=O)NC(CC(C)C)C(=O)NC(CC(N)=O)C(=O)NC(Cc4ccccc4)C(=O)N2)C(C)C)C(=O)NC(Cc5c[nH]c6ccccc56)C(O)=O

InChI

1S/C103H147N27O37S5/c1-10-46(6)80(100(163)123-67(103(166)167)30-50-37-109-54-19-15-14-18-52(50)54)128-99(162)79(45(4)5)127-95(158)66(36-78(144)145)120-85(148)55(20-23-71(105)133)112-90(153)61(31-51-38-108-43-110-51)117-97(160)69-40-170-169-39-53(104)83(146)129-81(47(7)131)102(165)126-70-42-172-171-41-68(96(159)115-59(28-44(2)3)88(151)118-62(32-72(106)134)91(154)116-60(89(152)125-69)29-49-16-12-11-13-17-49)124-86(149)57(22-25-75(138)139)111-84(147)56(21-24-74(136)137)113-94(157)65(35-77(142)143)122-101(164)82(48(8)132)130-87(150)58(26-27-168-9)114-93(156)64(34-76(140)141)121-92(155)63(33-73(107)135)119-98(70)161/h11-19,37-38,43-48,53,55-70,79-82,109,131-132H,10,20-36,39-42,104H2,1-9H3,(H2,105,133)(H2,106,134)(H2,107,135)(H,108,110)(H,111,147)(H,112,153)(H,113,157)(H,114,156)(H,115,159)(H,116,154)(H,117,160)(H,118,151)(H,119,161)(H,120,148)(H,121,155)(H,122,164)(H,123,163)(H,124,149)(H,125,152)(H,126,165)(H,127,158)(H,128,162)(H,129,146)(H,130,150)(H,136,137)(H,138,139)(H,140,141)(H,142,143)(H,144,145)(H,166,167)

InChI key

LXPHPKVWHQLBBA-UHFFFAOYSA-N

Gene Information

human ... EDNRB(1910)
mouse ... EDNRB(13618)
rat ... EDNRB(50672)

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Related Categories

Amino Acid Sequence

Cys-Thr-Cys-Asn-Asp-Met-Thr-Asp-Glu-Glu-Cys-Leu-Asn-Phe-Cys-His-Gln-Asp-Val-Ile-Trp [Disulfide Bridges: 1-15, 3-11]

Biochem/physiol Actions

Sarafotoxin S6c is an endothelin ETB agonist. It is a peptide isotoxin with strong vasoconstrictor activity, obtained from the Middle Eastern snake, Atractaspis engaddensi. The toxin is composed of 21 amino acids.

Other Notes

Lyophilized from 0.1% TFA in H2O

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 1 Oral

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sarafotoxin S6c: an agonist which distinguishes between endothelin receptor subtypes.
Willaims DL Jr
Biochemical and Biophysical Research Communications (1991)
The ocular hypotensive effect of the ETB receptor selective agonist, sarafotoxin S6c, in rabbits
Haque MS
Investigative Ophthalmology & Visual Science (1995)
J L Marshall et al.
British journal of pharmacology, 128(3), 809-815 (1999-10-12)
1. An investigation was performed in pentobarbitone anaesthetized rats to compare the renal vasoconstrictor actions of endothelin-1 (ET-1), endothelin-3 (ET-3) and sarafotoxin 6c and their dependency on NO production. 2. Intra-renal arterial infusion of ET-1 and ET-3, from 1 -
D L Williams et al.
Biochemical and biophysical research communications, 175(2), 556-561 (1991-03-25)
In contrast to endothelin-1 (ET-1) and several of its analogues, sarafotoxin S6c (S6c) was a much more potent inhibitor of [125I]-ET-1 binding in rat hippocampus and cerebellum (Ki approximately 20 pM) than in rat atria and aorta (Ki approximately 4500
R J Johnson et al.
The Journal of pharmacology and experimental therapeutics, 289(2), 762-767 (1999-04-24)
In the present study, endothelin (ET) agonists and receptor selective antagonists were used to characterize ET receptors mediating constriction in guinea pig mesenteric veins (250-300 micrometers diameter) in vitro. The contribution of ET-evoked vasodilator release to venous tone was also

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