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Families of metalloendopeptidases and their relationships

By Weiping Jiang and Judith S. Bond


AbstractCrystal structures available for four metalloendopeptidases have revealed zinc ligands for these enzymes. New sequence information has made it possible to compare the primary structures of the zinc-binding site in metalloendopeptidases. A scheme based on the zinc-binding site is proposed to classify metalloendopeptidases into five distinct families: thermolysin, astacin, serratia, matrixin, and snake venom metalloproteinases. Two histidines and one glutamate are zinc-ligands in the thermolysin family. Three histidines and one tyrosine are zinc ligands in other four families, which are further distinguished by the identity of the residue following the third histidine and by the environment surrounding the tyrosine

Publisher: Published by Elsevier B.V.
Year: 1992
DOI identifier: 10.1016/0014-5793(92)80916-5
OAI identifier:

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