. . . "This 5'-phosphorylated oligonucleotide has the sequence C AGC TGT (NNK)6 TGC (NNK)6 TGC TGT (NNK)3 TGT (NNK)4 TGT GGC GGC ATT GAA GGT CGT GGA GCC Seq.ID NO:6! where N is an equimolar mixture of bases G, A, T and C and K is an equimolar mixture of G and T. The predicted amino acid sequence of the ??-conotoxin-like peptide is also shown in FIG. 3C." .