title: Amino-terminal amino acid sequences and the evolution of frog (Rana esculenta) trypsin and chymotrypsin.
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001001:Anura; D005075:Biological Evolution; D002846:Chromatography, Affinity; D002918:Chymotrypsin / Q000378:metabolism*; D004591:Electrophoresis, Polyacrylamide Gel; D011893:Rana esculenta; D014357:Trypsin / Q000378:metabolism*
chemical_list: D000596:Amino Acids; D002918:Chymotrypsin; D014357:Trypsin