Momenta Pharmaceuticals, Inc. (MNTA)

[vinmantoo]

ghmm,

They are referring to the total number of amino acids in the peptide, not the number of different amino acids used. There are only 4 different amino acids in copaxone, but the peptide is longer than 4 amino acids. Hope this clarifies things. FYI, there are only 20 amino acids encoded by tRNAs. That excludes variants such as seleno-cysteine which is not incorporated by the usual triplet codon method.