2fm0: Difference between revisions
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|PDB= 2fm0 |SIZE=350|CAPTION= <scene name='initialview01'>2fm0</scene>, resolution 2.Å | |PDB= 2fm0 |SIZE=350|CAPTION= <scene name='initialview01'>2fm0</scene>, resolution 2.Å | ||
|SITE= | |SITE= | ||
|LIGAND= | |LIGAND= <scene name='pdbligand=M98:(S)-3-(2-(3-CYCLOPROPOXY-4-(DIFLUOROMETHOXY)PHENYL)-2-(5-(1,1,1,3,3,3-HEXAFLUORO-2-HYDROXYPROPAN-2-YL)THIAZOL-2-YL)ETHYL)PYRIDINE+1-OXIDE'>M98</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> | ||
|ACTIVITY= [http://en.wikipedia.org/wiki/3',5'-cyclic-nucleotide_phosphodiesterase 3',5'-cyclic-nucleotide phosphodiesterase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.4.17 3.1.4.17] | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/3',5'-cyclic-nucleotide_phosphodiesterase 3',5'-cyclic-nucleotide phosphodiesterase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.4.17 3.1.4.17] </span> | ||
|GENE= PDE4D2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= PDE4D2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
|DOMAIN= | |||
|RELATEDENTRY=[[2fm5|2FM5]] | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2fm0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fm0 OCA], [http://www.ebi.ac.uk/pdbsum/2fm0 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2fm0 RCSB]</span> | |||
}} | }} | ||
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==Overview== | ==Overview== | ||
Type 4 phosphodiesterase (PDE4) inhibitors are emerging as new treatments for a number of disorders including asthma and chronic obstructive pulmonary disease. Here we report the biochemical characterization on the second generation inhibitor (+)-1 (L-, IC50=0.4 nM) and its enantiomer (-)-1 (L-, IC50=43 nM) and their cocrystal structures with PDE4D at 2.0 A resolution. Despite the 107-fold affinity difference, both enantiomers interact with the same sets of residues in the rigid active site. The weaker (-)-1 adopts an unfavorable conformation to preserve the pivotal interactions between the Mg-bound waters and the N-oxide of pyridine. These structures support a model in which inhibitors are anchored by the invariant glutamine at one end and the metal-pocket residues at another end. This model provides explanations for most of the observed structure-activity relationship and the metal ion dependency of the catechol-ether based inhibitors and should facilitate their further design. | Type 4 phosphodiesterase (PDE4) inhibitors are emerging as new treatments for a number of disorders including asthma and chronic obstructive pulmonary disease. Here we report the biochemical characterization on the second generation inhibitor (+)-1 (L-, IC50=0.4 nM) and its enantiomer (-)-1 (L-, IC50=43 nM) and their cocrystal structures with PDE4D at 2.0 A resolution. Despite the 107-fold affinity difference, both enantiomers interact with the same sets of residues in the rigid active site. The weaker (-)-1 adopts an unfavorable conformation to preserve the pivotal interactions between the Mg-bound waters and the N-oxide of pyridine. These structures support a model in which inhibitors are anchored by the invariant glutamine at one end and the metal-pocket residues at another end. This model provides explanations for most of the observed structure-activity relationship and the metal ion dependency of the catechol-ether based inhibitors and should facilitate their further design. | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: Sun, Y.]] | [[Category: Sun, Y.]] | ||
[[Category: Wang, H.]] | [[Category: Wang, H.]] | ||
[[Category: camp signalling]] | [[Category: camp signalling]] | ||
[[Category: crystal structure]] | [[Category: crystal structure]] | ||
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[[Category: pde. enantiomer binding]] | [[Category: pde. enantiomer binding]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:04:35 2008'' | ||