Journal
ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY COMMUNICATIONS
Volume 63, Issue -, Pages 142-144Publisher
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S174430910700334X
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Pz peptidase A is an intracellular M3 metallopeptidase found in the thermophile Geobacillus collagenovorans MO-1 that recognizes collagen-specific tripeptide units (Gly-Pro-Xaa). Pz peptidase A shares common reactions with mammalian thimet oligopeptidase (TOP) and neurolysin, but has extremely low primary sequence identity to these enzymes. In this work, Pz peptidase A was cocrystallized with a phosphine peptide inhibitor (PPI) that selectively inhibits TOP and neurolysin. The crystals belong to space group P2(1), with unit-cell parameters a = 56.38, b = 194.15, c = 59.93 angstrom, beta = 106.22 degrees. This is the first crystallographic study of an M3 family peptidase-PPI complex.
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