Download MendeleyReactive sites of an anticarcinogenic Bowman-Birk proteinase inhibitor are similar to other trypsin inhibitors.
Chen, P., Rose, J., Love, R., Wei, C.H., Wang, B.C.(1992) J Biol Chem 267: 1990-1994
- PubMed: 1730730
- DOI: https://doi.org/10.2210/pdb1pi2/pdb
- Primary Citation of Related Structures:
1PI2 - PubMed Abstract:
The three-dimensional structure of the Bowman-Birk type proteinase inhibitor (PI-II) has been determined by x-ray crystallography and refined at 2.5-A resolution. This protein is a specific inhibitor of trypsin. Two reactive site loops, one at each end of the PI-II molecule, are structurally similar to each other and to reactive-site loops of pancreatic secretory trypsin inhibitor (Bolognesi, M., Gatti, G., Menegatti, E., Guarneri, M., Marquart, M., Papamokos, E., and Huber, R. (1982) J. Mol. Biol. 162, 839-869) and bovine pancreatic trypsin inhibitor (Deisenhofer, J., and Steigemann, W. (1975) Acta Crystallogr. B31, 238-250). PI-II is the first reported Bowman-Birk type inhibitor structure to be refined at high resolution, providing further insight into inhibitor mechanisms.
Organizational Affiliation:
Department of Crystallography, University of Pittsburgh, Pennsylvania 15260.
