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C216

Sigma-Aldrich

Calciseptine from Dendroaspis polylepis polylepis (black mamba)

>98%, amorphous powder

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About This Item

Empirical Formula (Hill Notation):
C299H468N90O87S10
CAS Number:
Molecular Weight:
7036.12
MDL number:
UNSPSC Code:
12352200

Assay

>98%

form

amorphous powder

storage temp.

−20°C

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Amino Acid Sequence

Arg-Ile-Cys-Tyr-Ile-His-Lys-Ala-Ser-Leu-Pro-Arg-Ala-Thr-Lys-Thr-Cys-Val-Glu-Asn-Thr-Cys-Tyr-Lys-Met-Phe-Ile-Arg-Glu-Tyr-Ile-Ser-Glu-Arg-Gly-Cys-Gly-Cys-Pro-Thr-Ala-Met-Trp-Pro-Tyr-Gln-Thr-Glu-Cys-Cys-Lys-Gly-Asp-Arg-Cys-Asn-Lys [Disulfide bridges: 3—22, 17—39, 41—52, 53—58]

Biochem/physiol Actions

Selective L-type Ca2+ channel blocker; from the venom of the black mamba Dendroaspis polylepis polylepis.

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

Regulatory Information

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O Yasuda et al.
Biochemical and biophysical research communications, 194(2), 587-594 (1993-07-30)
Calciseptine (CaS) is a natural peptidic L-type Ca2+ channel blocker consisting of 60 amino acids with four disulfide bonds. The effects of synthetic CaS on the binding of various ligands to Ca2+ channels of rat brain synaptosomal membranes were studied.
J R de Weille et al.
Proceedings of the National Academy of Sciences of the United States of America, 88(6), 2437-2440 (1991-03-15)
The venom of the black mamba contains a 60-amino acid peptide called calciseptine. The peptide has been fully sequenced. It is a smooth muscle relaxant and an inhibitor of cardiac contractions. Its physiological action resembles that of drugs, such as

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