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| {{STRUCTURE_1ouy| PDB=1ouy | SCENE= }} | | {{STRUCTURE_1ouy| PDB=1ouy | SCENE= }} |
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| '''The structure of p38 alpha in complex with a dihydropyrido-pyrimidine inhibitor'''
| | ===The structure of p38 alpha in complex with a dihydropyrido-pyrimidine inhibitor=== |
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| ==Overview==
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| The quinazolinone and pyridol-pyrimidine classes of p38 MAP kinase inhibitors have a previously unseen degree of specificity for p38 over other MAP kinases. Comparison of the crystal structures of p38 bound to four different compounds shows that binding of the more specific molecules is characterized by a peptide flip between Met109 and Gly110. Gly110 is a residue specific to the alpha, beta and gamma isoforms of p38. The delta isoform and the other MAP kinases have bulkier residues in this position. These residues would likely make the peptide flip energetically unfavorable, thus explaining the selectivity of binding. To test this hypothesis, we constructed G110A and G110D mutants of p38 and measured the potency of several compounds against them. The results confirm that the selectivity of quinazolinones and pyridol-pyrimidines results from the presence of a glycine in position 110. This unique mode of binding may be exploited in the design of new p38 inhibitors. | | The line below this paragraph, {{ABSTRACT_PUBMED_12897767}}, adds the Publication Abstract to the page |
| | (as it appears on PubMed at http://www.pubmed.gov), where 12897767 is the PubMed ID number. |
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| | {{ABSTRACT_PUBMED_12897767}} |
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| ==About this Structure== | | ==About this Structure== |
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| [[Category: Kinase domain]] | | [[Category: Kinase domain]] |
| [[Category: Map kinase]] | | [[Category: Map kinase]] |
| ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 04:18:36 2008'' | | |
| | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 21:38:57 2008'' |