FIGURE 3.

Trypsin-digested peptide map and NH₂-terminal sequences of tryptic peptides of the enzyme with citrulline aminopeptidase activity purified from newborn rat epidermis. The purified enzyme with citrulline aminopeptidase activity was digested with trypsin as described under “Experimental Procedures.” A, reverse-phase HPLC of the trypsin-digested peptides. Peptides were detected by measuring UV absorption at 215 nm. The label on each peak indicates the main peptides. B, NH₂-terminal amino acid sequences of the tryptic peptides (T1–T6).