Abstract:
:The main recognition characteristics of the ATP binding site of p38 mitogen activated protein kinase alpha (p38alpha MAPK) have been explored by a combination of modeling and bioinformatics techniques, making special emphasis in the characteristics of the site that justifies binding specificity with respect to other MAP kinases. Particularly, we have analyzed the binding mode of a new family of p38 MAPK inhibitors based on the pyridinyl-heterocycle core. This family of compounds has a marked pseudosymmetry and can exist in different tautomeric forms, which makes the determination of the binding mode especially challenging. A combination of homology modeling, quantum mechanics, classical docking, and molecular dynamics calculations allowed us to determine the main characteristics defining the binding mode of this new scaffold in the ATP binding site of p38alpha. A set of free energy calculations allowed us to verify the binding mode proposed, giving an overall excellent agreement with the experimental values. Finally, the binding mode of this new family of compounds was compared to that of other members of the pyridinyl and pyrimidinyl heterocycle class.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Soliva R,Gelpí JL,Almansa C,Virgili M,Orozco Mdoi
10.1021/jm061073hsubject
Has Abstractpub_date
2007-01-25 00:00:00pages
283-93issue
2eissn
0022-2623issn
1520-4804journal_volume
50pub_type
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