4gh6

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==Crystal structure of the PDE9A catalytic domain in complex with inhibitor 28==
==Crystal structure of the PDE9A catalytic domain in complex with inhibitor 28==
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<StructureSection load='4gh6' size='340' side='right' caption='[[4gh6]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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<StructureSection load='4gh6' size='340' side='right'caption='[[4gh6]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4gh6]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4GH6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4GH6 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4gh6]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4GH6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4GH6 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=LUO:N-(4-METHOXYPHENYL)-N~2~-[1-(2-METHYLPHENYL)-4-OXO-4,5-DIHYDRO-1H-PYRAZOLO[3,4-D]PYRIMIDIN-6-YL]-L-ALANINAMIDE'>LUO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.7&#8491;</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PDE9A ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=LUO:N-(4-METHOXYPHENYL)-N~2~-[1-(2-METHYLPHENYL)-4-OXO-4,5-DIHYDRO-1H-PYRAZOLO[3,4-D]PYRIMIDIN-6-YL]-L-ALANINAMIDE'>LUO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/3',5'-cyclic-GMP_phosphodiesterase 3',5'-cyclic-GMP phosphodiesterase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.4.35 3.1.4.35] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4gh6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4gh6 OCA], [https://pdbe.org/4gh6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4gh6 RCSB], [https://www.ebi.ac.uk/pdbsum/4gh6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4gh6 ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4gh6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4gh6 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4gh6 RCSB], [http://www.ebi.ac.uk/pdbsum/4gh6 PDBsum]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/PDE9A_HUMAN PDE9A_HUMAN]] Hydrolyzes the second messenger cGMP, which is a key regulator of many important physiological processes.<ref>PMID:18757755</ref>
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[https://www.uniprot.org/uniprot/PDE9A_HUMAN PDE9A_HUMAN] Hydrolyzes the second messenger cGMP, which is a key regulator of many important physiological processes.<ref>PMID:18757755</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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A new series of phosphodiesterase-9 (PDE9) inhibitors that contain a scaffold of 6-amino-pyrazolopyrimidinone have been discovered by a combination of structure-based design and computational docking. This procedure significantly saved the load of chemical synthesis and is an effective method for the discovery of inhibitors. The best compound 28 has an IC(50) of 21 nM and 3.3 muM, respectively, for PDE9 and PDE5 and about 3 orders of magnitude of selectivity against other PDE families. The crystal structure of the PDE9 catalytic domain in complex with 28 has been determined and shows a hydrogen bond between 28 and Tyr424. This hydrogen bond may account for the 860-fold selectivity of 28 against PDE1B, in comparison with about 30-fold selectivity of BAY73-6691. Thus, our studies suggest that Tyr424, a unique residue of PDE8 and PDE9, is a potential target for improvement of selectivity of PDE9 inhibitors.
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Structure-Based Discovery of Highly Selective Phosphodiesterase-9A Inhibitors and Implications for Inhibitor Design.,Meng F, Hou J, Shao YX, Wu PY, Huang M, Zhu X, Cai Y, Li Z, Xu J, Liu P, Luo HB, Wan Y, Ke H J Med Chem. 2012 Oct 1. PMID:22985069<ref>PMID:22985069</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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==See Also==
==See Also==
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*[[Phosphodiesterase|Phosphodiesterase]]
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*[[Phosphodiesterase 3D structures|Phosphodiesterase 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: 3',5'-cyclic-GMP phosphodiesterase]]
 
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Hou, J]]
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[[Category: Large Structures]]
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[[Category: Ke, H]]
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[[Category: Hou J]]
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[[Category: Hydrolase-hydrolase inhibitor complex]]
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[[Category: Ke H]]
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[[Category: Pde9a]]
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Current revision

Crystal structure of the PDE9A catalytic domain in complex with inhibitor 28

PDB ID 4gh6

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