BZ-ILE-GLU-GLY-ARG-PNA

N(ALPHA)-BENZOYL-L-ISOLEUCYL-L-GLU-GLY-L-ARG-4-NITROANILIDE*

nα-benzoyl-l-isoleucyl-l-glutamyl-glycyl-l-arginine-4-nitroanilide

N-ALPHA-BENZOYL-L-ISOLEUCYL-L-GLUTAMYL-GLYCYL-L-ARGININE-4-NITROANILIDE