Structure of anionic salmon trypsin in a second crystal form.Berglund, G.I., Smalas, A.O., Hordvik, A., Willassen, N.P.
(1995) Acta Crystallogr.,Sect.D 51: 725-730
- PubMed: 15299802
- DOI: 10.1107/S0907444995000333
- PubMed Abstract:
- Crystallization and Preliminary X-Ray Crystallographic Studies of Benzamidine-Inhibited Trypsin from the North Atlantic Salmon (Salmo Salar)
Smalas, A.O.,Hordvik, A.,Hansen, L.K.,Hough, E.,Jynge, K.
(1990) J.Mol.Biol. 214: 355
- The Geometry of the Reactive Site and of the Peptide Groups in Trypsin, Trypsinogen and its Complexes with Inhibitors
Marquart, M.,Walter, J.,Deisenhofer, J.,Bode, W.,Huber, R.
(1983) Acta Crystallogr.,Sect.B 39: 480
- Crystal Structure of Bovine B-Trypsin at 1.5 Angstroms Resolution in a Crystal Form with Low Molecular Packing Density
Bartunik, H.D.,Summers, L.J.,Bartsch, H.H.
(1989) J.Mol.Biol. 210: 813
- Crystal Structure Determination and Refinement of Benzamidine-Inhibited Trypsin from the North Atlantic Salmon (Salmo Salar)
Smalas, A.O.,Hordvik, A.
(1993) Acta Crystallogr.,Sect.D 49: 318
- Cold-Adaption of Enzymes: Structural Comparison between Salmon and Bovine Trypsins
Smalas, A.O.,Heimstad, E.S.,Hordvik, A.,Willassen, N.P.
() TO BE PUBLISHED --: --
- The Accuracy of Refined Protein Structures: Comparison of Two Independently Refined Models of Bovine Trypsin
Chambers, J.H.,Stroud, R.M.
(1979) Acta Crystallogr.,Sect.B 35: 1861
Anionic salmon trypsin in a second crystal form (ST-IIB) has been refined at 1.83 A, resolution. The crystals are orthorhombic and belong to space group P2(1)2(1)2 with lattice parameters a = 77.09, b = 82.33 and c = 31.16 A. The present structure ha ...
Anionic salmon trypsin in a second crystal form (ST-IIB) has been refined at 1.83 A, resolution. The crystals are orthorhombic and belong to space group P2(1)2(1)2 with lattice parameters a = 77.09, b = 82.33 and c = 31.16 A. The present structure has been compared to salmon trypsin as it appears in a previously reported crystal form (ST-IIA) with cell dimensions a = 61.95, b = 84.33 and c = 39.11 A [Smalås & Hordvik (1993). Acta Cryst. D49, 318-330]. The presence of a sulfate group involved in several hydrogen bonds to active-site residues, and the location of an additional benzamidine site in the crystal lattice, are the most striking differences between the present and the previous structure. Superposition of main-chain atoms in the two structures give an overall r.m.s. difference of 0.26 A, with the main differences located to areas with different molecular packing. The overall coordinate error is estimated to be between 0.20 and 0.25 A, by the method of Luzzati.
Protein Crystallography Group, Department of Chemistry, Institute of Mathematical and Physical Sciences, University of Tromsø, Norway.