Title
Computational generation inhibitor-bound conformers of p38 MAP kinase and comparison with experiments.
Abstract
The p38 MAP kinases play a critical role in regulating stress-activated pathways, and serve as molecular targets for controlling inflammatory diseases. Computer-aided efforts for developing p38 inhibitors have been hampered by the necessity to include the enzyme conformational flexibility in ligand docking simulations. A useful strategy in such complicated cases is to perform ensemble-docking provided that a representative set of conformers is available for the target protein either from computations or experiments. We explore here the abilities of two computational approaches, molecular dynamics (MD) simulations and anisotropic network model (ANM) normal mode analysis, for generating potential ligand-bound conformers starting from the apo state of p38, and benchmark them against the space of conformers (or the reference modes of structural changes) inferred from principal component analysis of 134 experimentally resolved p38 kinase structures. ANM-generated conformations are found to provide a significantly better coverage of the inhibitor-bound conformational space observed experimentally, compared to MD simulations performed in explicit water, suggesting that ANM-based sampling of conformations can be advantageously employed as input structural models in docking simulations.
Year
Venue
Keywords
2011
Biocomputing-Pacific Symposium on Biocomputing
map kinase
Field
DocType
ISSN
Conformational isomerism,Biology,Docking (dog),Searching the conformational space for docking,Target protein,Anisotropic Network Model,Molecular dynamics,Normal mode,Bioinformatics,Protein structure
Conference
2335-6936
Citations 
PageRank 
References 
2
0.75
0
Authors
2
Name
Order
Citations
PageRank
Ahmet Bakan1614.99
Ivet Bahar236139.41