– ?-Conotoxin MII is a highly potent and selective competitive antagonist for ?3?2 subunit-containing nicotinic receptors (IC50 = 0.5 – 3.5 nM at ?3?2 expressed in Xenopus oocytes). Also potently blocks ?3-containing neuronal nicotinic receptors. Displays > 200-fold selectivity for ?3?2 over ?2?2, ?4?2 and ?3?4.
– N12C(=O)C(C(C(=O)N([H])[H])([H])[H])([H])N([H])C(=O)C(C(O[H])([H])[H])([H])N([H])C(=O)C3(C(SSC(C(N(C(C(N(C(C(N(C(C(N(C(C(N(C(C(N(C(C(N(C(C(N(C(=O)C(C(SSC(C(C(N3[H])=O)(N(C(C(N([H])[H])([H])[H])=O)[H])[H])([H])[H])([H])[H])([H])N([H])C(=O)C(C(C([H])([H])[H])(C([H])([H])[H])[H])([H])N([H])C(=O)C1(C(C(C2([H])[H])([H])[H])([H])[H])[H])[H])(C(c1nc([H])[n]([H])c1[H])([H])[H])[H])=O)[H])(C(C(C([H])([H])[H])(C([H])([H])[H])[H])([H])[H])[H])=O)[H])(C(C(C(O[H])=O)([H])[H])([H])[H])[H])=O)[H])(C(c1nc([H])[n]([H])c1[H])([H])[H])[H])=O)[H])(C(O[H])([H])[H])[H])=O)[H])(C(C(=O)N([H])[H])([H])[H])[H])=O)[H])(C(C(C([H])([H])[H])(C([H])([H])[H])[H])([H])[H])[H])=O)[H])(C(=O)N([H])[H])[H])([H])[H])([H])[H])[H]