| Bioactivity | α-Conotoxin MII TFA (α-CTxMII TFA), a 16-amino acid peptide from the venom of the marine snail Conus magus, potently blocks nicotinic acetylcholine receptors (nAChRs) composed of α3β2 subunits, with an IC50 of 0.5 nM. α-Conotoxin MII TFA (α-CTxMII TFA) potently blocks β3-containing neuronal nicotinic receptors [1][2][3]. |
| Target | IC50: 0.5 nM (α3β2). |
| Invitro | α-Conotoxin MII (0.5-3.5 nM) blocks ACh responses in oocytes expressing α3β2 nicotinic acetylcholine receptors[1][2]. |
| Name | α-Conotoxin MII TFA |
| Sequence | Gly-Cys-Cys-Ser-Asn-Pro-Val-Cys-His-Leu-Glu-His-Ser-Asn-Leu-Cys-NH2 (Disulfide bridge:Cys2-Cys8;Cys3-Cys16) |
| Shortening | GCCSNPVCHLEHSNLC-NH2 (Disulfide bridge:Cys2-Cys8;Cys3-Cys16) |
| Formula | C69H104F3N23O24S4 |
| Molar Mass | 1824.96 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. G E Cartier, et al. A New Alpha-Conotoxin Which Targets alpha3beta2 Nicotinic Acetylcholine Receptors. J Biol Chem. 1996 Mar 29;271(13):7522-8. [2]. S C Harvey, et al. Determinants of Specificity for Alpha-Conotoxin MII on alpha3beta2 Neuronal Nicotinic Receptors. Mol Pharmacol. 1997 Feb;51(2):336-42. [3]. J M McIntosh, et al. Conus Peptides: Novel Probes for Nicotinic Acetylcholine Receptor Structure and Function. Eur J Pharmacol. 2000 Mar 30;393(1-3):205-8. |