title: The metal ion acceleration of the conversion of trypsinogen to trypsin. Lanthanide ions as calcium ion substitutes.
mesh_terms: D001665:Binding Sites; D002118:Calcium / Q000494:pharmacology*; D055598:Chemical Phenomena; D002621:Chemistry; D004789:Enzyme Activation; D005682:Gadolinium / Q000494:pharmacology; D006695:Holmium / Q000494:pharmacology; D007477:Ions; D007700:Kinetics; D007811:Lanthanum / Q000494:pharmacology; D008187:Lutetium / Q000494:pharmacology; D008670:Metals / Q000494:pharmacology*; D008961:Models, Structural; D009354:Neodymium / Q000494:pharmacology; D009994:Osmolar Concentration; D011221:Praseodymium / Q000494:pharmacology; D011485:Protein Binding; D012493:Samarium / Q000494:pharmacology; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship; D013725:Terbium / Q000494:pharmacology; D014357:Trypsin / Q000378:metabolism*; D014362:Trypsinogen / Q000378:metabolism*
chemical_list: D007477:Ions; D008670:Metals; D013725:Terbium; D009354:Neodymium; D012493:Samarium; D008187:Lutetium; D007811:Lanthanum; D014362:Trypsinogen; D005682:Gadolinium; D014357:Trypsin; D011221:Praseodymium; D002118:Calcium; D006695:Holmium