2bbi | pdb_00002bbi

THREE-DIMENSIONAL STRUCTURE OF SOYBEAN TRYPSIN(SLASH)CHYMOTRYPSIN BOWMAN-BIRK INHIBITOR IN SOLUTION

spinqualitylabelsall models 2bbi Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2bbi is a 1 chain structure with sequence from Glycine max. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Solution NMR, 16 models Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function IBB1_SOYBN Inhibitor of trypsin and of chymotrypsin. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The three-dimensional structure of soybean trypsin/chymotrypsin Bowman-Birk inhibitor in solution has been determined by two-dimensional 1H nuclear magnetic resonance spectroscopy and dynamical simulated annealing using the program XPLOR. The structure was defined by 907 NOEs involving intra- and interresidue contacts which served as distance constraints for a protocol of dynamical simulated annealing. In addition, 48 phi angle constraints involving non-proline amino acids, 29 chi angle constraints, six omega angle constraints for the X-Pro peptide bond, and 35 stereoassignments for prochiral centers were incorporated during the course of the calculation. The protein is characterized by two distinct binding domains for serine protease. Each domain is comprised of a beta-hairpin (antiparallel beta-sheet and a cis-proline-containing type VIb reverse turn) with a short segment making a third strand of antiparallel beta-sheet. The structure determination and refinement are described, and the structure is compared to other structures of Bowman-Birk inhibitors as well as other families of serine protease inhibitors. Three-dimensional structure of soybean trypsin/chymotrypsin Bowman-Birk inhibitor in solution.,Werner MH, Wemmer DE Biochemistry. 1992 Feb 4;31(4):999-1010. PMID:1734975 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Trypsin inhibitor 3D structures

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