Protein kinases are a large family of cell signaling mediators undergoing intensive research to identify inhibitors or modulators useful for medicine. As one strategy, small-molecule compounds that bind the active site with high affinity can be used to inhibit the enzyme activity. X-ray crystallography is a powerful method to reveal the structures of the kinase active sites, and thus aid in the design of high-affinity, selective inhibitors.
View Article and Find Full Text PDFJ Colloid Interface Sci
May 2002
The stability of the contact line region as affected by the disjoining pressure has been analyzed by solving the augmented Young-Laplace equation. Because of the results in Part I (Zhang, X., Neogi, P.
View Article and Find Full Text PDFProton inventory studies of the thrombin-catalyzed fibrinogen activation to fibrinopeptide A are most consistent with a two-proton bridge forming at the transition state probably between Ser195 OgammaH and His57 Nepsilon2 and His57 Ndelta1 and Asp102 COObeta- at the active site, with fractionation factors 0.66 +/- 0.03 under enzyme saturation with substrate and 0.
View Article and Find Full Text PDFPharmacoepidemiol Drug Saf
June 2003
Objective: To examine the rates of co-prescribing of gastro-protective drugs (GPDs) and the frequency of gastrointestinal (GI) investigations associated with standard and slow-release (SR) formulations of nonsteroidal antiinflammatory drugs (NSAIDs).
Methods: Patients were identified from the MediPlus database, which contains the medical records of some 2 million patients throughout the United Kingdom. We selected all new NSAID users who received at least one prescription between 1 July 1997 and 31 December 1997.