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Crystallization and preliminary X-ray study of porcine trypsin, free and complexed with Ecballium elaterium trypsin inhibitor, a member of the squash inhibitors family

Gaboriaud, C.; Vaney, M.C.; Bachet, B.; Le-Nguyen, D.; Castro, B.; Mornon, J.P.

Journal of Molecular Biology 210(4): 883-884

1989


ISSN/ISBN: 0022-2836
PMID: 2614849
DOI: 10.1016/0022-2836(89)90118-6
Accession: 017838378

Porcine trypsin has been crystallized either free or complexed with synthetic Ecballium elaterium trypsin inhibitor II, a 28-residue peptide with three disulfide bridges. The crystals diffract beyond 2·0 A. Crystals are orthorhombic, space group P212121, with cell dimensions a = 77·32 A, b = 53·81 A, c = 46·91 A, for the free trypsin, and a = 62·25 A, b = 62·27 A, c = 84·66 A for the complex with E. elaterium trypsin inhibitor II.

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