Bioactivity | α-Conotoxin M I is a potent and selective inhibitor of mAChR and α1β1γδ nAChR, but has no effect on nicotine-stimulated dopamine release. α-Conotoxins are small, disulfide-rich peptides that competitively inhibit muscle and neuronal nicotinic AChRs[1][2]. |
Target | mAChR; α1β1γδ nAChR |
Invitro | α-Conotoxin M I interacts with the α-δ site of the AChR through four hydrophobic residues in its N- and C-terminal loops. Furthermore, the key side chains in α-Conotoxin M I localize in a hydrophobic cluster that interacts with hydrophobic and aromatic residues from both the a and d subunits[2]. |
Name | α-Conotoxin M I |
CAS | 88217-10-1 |
Shortening | GRCCHPACGKNYSC-NH2 (Disulfide bridge:Cys3-Cys8;Cys4-Cys14) |
Formula | C58H88N22O17S4 |
Molar Mass | 1493.72 |
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]. Kulak JM, et al. Alpha-conotoxin MII blocks nicotine-stimulated dopamine release in rat striatal synaptosomes. J Neurosci. 1997 Jul 15;17(14):5263-70. [2]. Bren N, et al. Hydrophobic pairwise interactions stabilize alpha-conotoxin MI in the muscle acetylcholine receptor binding site. J Biol Chem. 2000 Apr 28;275(17):12692-700. |