Porcine muscle prolyl endopeptidase: limited proteolysis of tryptic peptides from hemoglobin β-chains at prolyl and alanyl bondsAkihiko Moriyama, Makoto Sasaki, Makoto Nakanishi et al.|Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology|1988Cited by 23