Article
Polar Desolvation and Position 226 of Pancreatic and Neutrophil Elastases Are Crucial to their Affinity for the Kunitz-Type Inhibitors ShPI-1 and ShPI-1/K13L.
PloS one - 1 Jan 2015
Hernández González Jorge Enrique, García-Fernández Rossana, Valiente Pedro Alberto
Abstract excerpt
The Kunitz-type protease inhibitor ShPI-1 inhibits human neutrophil elastase (HNE, Ki = 2.35·10-8 M) but does not interact with the porcine pancreatic elastase (PPE); whereas its P1 site variant, ShPI-1/K13L, inhibits both HNE and PPE (Ki = 1.3·10-9 M, and Ki = 1.2·10-8 M, respectively). By employing a combination of molecular modeling tools, e.g., structural alignment, molecular dynamics simulations and...
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