title: Evolution in the pancreatic chymotrypsinogen series: N-terminal sequence determinations and comparisons.
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D005075:Biological Evolution; D002919:Chymotrypsinogen; D014644:Genetic Variation; D010179:Pancreas / Q000201:enzymology*; D013045:Species Specificity; D014426:Turtles
chemical_list: D000596:Amino Acids; D002919:Chymotrypsinogen