s-Mu-conotoxin CnIIIC

Functions
Botox-like
Smoothing
Protective
CAS Number(s)
936616-33-0
INCI name
S-Mu-Conotoxin Cniiic

s-Mu-Conotoxin CnIIIC is a synthetic oligopeptide derived from one of the marine cone snails' toxins, also called conotoxins or conopeptides. μ-CnIIIC is a 22-amino-acid-length conotoxin polypeptide obtained from Conus consors, which exhibited muscle-relaxing properties in tests on rodents. It has the following sequence PCA-Gly-Cys-Cys-Asn-Gly-Pro-Lys-Gly-Cys-Ser-Ser-Lys-Trp-Cys-Arg-Asp-His-Ala-Arg-Cys-Cys-NH2.

In humans, the rapid electrical signal from neurons to muscles (for contraction) is transmitted via special voltage-gated sodium channels. There are nine types of voltage-gated sodium channels, each with distinct action potentials (different ion concentrations inside and outside the cell) and tissue-specific expression. So, if a particular toxin is selective, meaning it can block only one type of voltage-gated sodium channel, it can be safely used to manage a specific physiological function.

s-Mu-conotoxin CnIIIC is very selective to NaV 1.4 sodium channels, which are distributed in muscles, and does not block other types of channels, e.g., NaV 1.5 in the heart, NaV 1.8 in dorsal ganglia, or neuronal NaV 1.6-1.7 channels. Thus, it is a safer ingredient that blocks only muscular contractions without adverse effects on other organs and tissues.

Blocking mimic muscles, s-Mu-Conotoxin CnIIIC leaves a long-lasting Botox-like effect, relaxing facial muscles and helping fight mimic wrinkles. Incorporated into high-end skincare applications, this conopeptide delivers a significant anti-aging effect with just a topical application, without injections or invasive procedures.
Synonyms
Conopeptide
Activen XEP™-018

Chem/IUPAC Name: L-Cysteinamide, 5-oxo-L-prolylglycyl-L-cysteinyl-L-cysteinyl-L-asparaginylglycyl-L-prolyl-L-lysylglycyl-L-cysteinyl-L-seryl-L-seryl-L-lysyl-L-tryptophyl-L-cysteinyl-L-arginyl-L-.alpha.-aspartyl-L-histidyl-L-alanyl-L-arginyl-L-cysteinyl-, cyclic (3.fwdarw.15),(4.fwdarw.21),(10.fwdarw.22)-tris(disulfide)

Changed

References

Cutaneous iontophoresis of μ-conotoxin CnIIIC-A potent NaV1.4 antagonist with analgesic, anaesthetic and myorelaxant properties
Author(s):
, , , ,
PMID:
28034736
DOI:
10.1016/j.ijpharm.2016.12.054
Mechanism and molecular basis for the sodium channel subtype specificity of µ-conopeptide CnIIIC
Author(s):
, , , , ,
PMID:
22537004
DOI:
10.1111/j.1476-5381.2012.02004.x
A novel µ-conopeptide, CnIIIC, exerts potent and preferential inhibition of NaV1.2/1.4 channels and blocks neuronal nicotinic acetylcholine receptors
Author(s):
, , , , , , , , , , , , , , , , ,
PMID:
22229737
DOI:
10.1111/j.1476-5381.2012.01837.x