Abstract
Trypsin is a prototype of a large group of enzymes belonging to serine proteinases. The X-ray crystal-structure analyses of its proenzyme trypsinogen, of the active trypsin and of their complexes formed with the pancreatic trypsin inhibitor (PTI) have considerably enhanced our understanding of the mechanisms of activitation, action and inhibition. The trypsinogen is an incompletely folded molecule. Its substrate-binding site becomes only completely fixed upon the enzymatic cleavage of an N-terminal peptide. The contact regions of trypsin and PTI are almost complementary. The complex formed is a (stable) intermediate in the normal tryptic substrate-cleavage reaction.
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Ich danke dem SFB 51 und der Deutschen Forschungsgemeinschaft für großzügige finanzielle Unterstützung und Prof. R. Huber und meinen Kollegen für die Überlassung von Ergebnissen und Abbildungen, für ihre Mithilfe und für viele stimulierende Diskussionen.
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Bode, W. Aktivierung, Aktivität und Inhibierung des Rindertrypsins. Naturwissenschaften 66, 251–258 (1979). https://doi.org/10.1007/BF00571605
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DOI: https://doi.org/10.1007/BF00571605