Molecular Recognition at the Active Site of Factor Xa: Cation-Pi Interactions, Stacking on Planar Peptide Surfaces, and Replacement of Structural Water.
Salonen, L.M., Holland, M.C., Kaib, P.S., Haap, W., Benz, J., Mary, J.L., Kuster, O., Schweizer, W.B., Banner, D.W., Diederich, F.(2012) Chemistry 18: 213
- PubMed: 22162109 
- DOI: 10.1002/chem.201102571
- Primary Citation of Related Structures:  
2Y5F, 2Y5G, 2Y5H - PubMed Abstract: 
Factor Xa, a serine protease from the blood coagulation cascade, is an ideal enzyme for molecular recognition studies, as its active site is highly shape-persistent and features distinct, concave sub-pockets. We developed a family of non-peptidic, small-molecule inhibitors with a central tricyclic core orienting a neutral heterocyclic substituent into the S1 pocket and a quaternary ammonium ion into the aromatic box in the S4 pocket ...