the ordering of the cyanogen bromide peptide fragments has been carried out ( a ) by submitting the s-carboxymethylated protein to complete tryptic digestion and labelling the methionine-containing peptides thus obtained with iodo [ 14c ] -acetamide , and ( b ) by submitting to limited tryptic digestion the s- [ 2- ( 4'-pyridyl ) ethyl ] -cysteine protein whose amino groups have been blocked by reaction with exo-cis-3,6-endoxo-delta 4-tetrahydrophthalic anhydride prior to digestion .
C0030935
peptide fragments
C0030956
peptides