The reaction of the P2 protein from rabbit sciatic nerve with CNBr produced four peptides: a 20-residue peptide (CN3) containing tryptophan which occupies the blocked NHZ terminus; Peptide CN1, a large peptide comprising over 70% of the P2 molecule; Peptide CN2, a fraction containing two tightly bound peptides having 2 half-cystine residues and comprising the COOH terminus; and Peptide CN4, a n...
