MU-CONOTOXIN CNIIIC

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)