Investigating the dynamic aspects of drug-protein recognition through a combination of MD and NMR analyses: implications for the development of protein-protein interaction inhibitors

In this paper, we investigate the dynamic aspects of the molecular recognition between a small molecule ligand and a flat, exposed protein surface, representing a typical target in the development of protein-protein interaction inhibitors. Specifically, we analyze the complex between the protein Fib...

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Veröffentlicht in:PloS one 2014-05, Vol.9 (5), p.e97153-e97153
Hauptverfasser: Meli, Massimiliano, Pagano, Katiuscia, Ragona, Laura, Colombo, Giorgio
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Pagano, Katiuscia
Ragona, Laura
Colombo, Giorgio
description In this paper, we investigate the dynamic aspects of the molecular recognition between a small molecule ligand and a flat, exposed protein surface, representing a typical target in the development of protein-protein interaction inhibitors. Specifically, we analyze the complex between the protein Fibroblast Growth Factor 2 (FGF2) and a recently discovered small molecule inhibitor, labeled sm27 for which the binding site and the residues mainly involved in small molecule recognition have been previously characterized. We have approached this problem using microsecond MD simulations and NMR-based characterizations of the dynamics of the apo and holo states of the system. Using direct combination and cross-validation of the results of the two techniques, we select the set of conformational states that best recapitulate the principal dynamic and structural properties of the complex. We then use this information to generate a multi-structure representation of the sm27-FGF2 interaction. We propose this kind of representation and approach as a useful tool in particular for the characterization of systems where the mutual dynamic influence between the interacting partners is expected to play an important role. The results presented can also be used to generate new rules for the rational expansion of the chemical diversity space of FGF2 inhibitors.
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Specifically, we analyze the complex between the protein Fibroblast Growth Factor 2 (FGF2) and a recently discovered small molecule inhibitor, labeled sm27 for which the binding site and the residues mainly involved in small molecule recognition have been previously characterized. We have approached this problem using microsecond MD simulations and NMR-based characterizations of the dynamics of the apo and holo states of the system. Using direct combination and cross-validation of the results of the two techniques, we select the set of conformational states that best recapitulate the principal dynamic and structural properties of the complex. We then use this information to generate a multi-structure representation of the sm27-FGF2 interaction. We propose this kind of representation and approach as a useful tool in particular for the characterization of systems where the mutual dynamic influence between the interacting partners is expected to play an important role. The results presented can also be used to generate new rules for the rational expansion of the chemical diversity space of FGF2 inhibitors.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24865844</pmid><doi>10.1371/journal.pone.0097153</doi><oa>free_for_read</oa></addata></record>
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subjects Binding Sites
Biochemistry
Biology and Life Sciences
Enzymes
Fibroblast growth factor
Fibroblast growth factor 2
Fibroblast Growth Factor 2 - chemistry
Fibroblast Growth Factor 2 - metabolism
Fibroblast growth factors
Fibroblasts
Growth factors
Humans
Inhibitors
Ligands
Models, Molecular
Molecular Dynamics Simulation
NMR
Nuclear magnetic resonance
Nuclear Magnetic Resonance, Biomolecular
Physical Sciences
Protein Binding
Protein Conformation
Protein interaction
Protein Interaction Domains and Motifs - drug effects
Protein-protein interactions
Proteins
Recognition
Representations
Simulation
Small Molecule Libraries - chemistry
Small Molecule Libraries - metabolism
Spectrum analysis
title Investigating the dynamic aspects of drug-protein recognition through a combination of MD and NMR analyses: implications for the development of protein-protein interaction inhibitors
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