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| | <StructureSection load='4y87' size='340' side='right'caption='[[4y87]], [[Resolution|resolution]] 3.10Å' scene=''> | | <StructureSection load='4y87' size='340' side='right'caption='[[4y87]], [[Resolution|resolution]] 3.10Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4y87]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4Y87 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4Y87 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4y87]] 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=4Y87 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4Y87 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=49E:6-{[(1R)-1-(4-CHLOROPHENYL)ETHYL]AMINO}-1-CYCLOPENTYL-1,5-DIHYDRO-4H-PYRAZOLO[3,4-D]PYRIMIDIN-4-ONE'>49E</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=49E:6-{[(1R)-1-(4-CHLOROPHENYL)ETHYL]AMINO}-1-CYCLOPENTYL-1,5-DIHYDRO-4H-PYRAZOLO[3,4-D]PYRIMIDIN-4-ONE'>49E</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4y86|4y86]]</td></tr>
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4y87 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4y87 OCA], [https://pdbe.org/4y87 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4y87 RCSB], [https://www.ebi.ac.uk/pdbsum/4y87 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4y87 ProSAT]</span></td></tr> |
| - | <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 HUMAN])</td></tr>
| + | |
| - | <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>
| + | |
| - | <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=4y87 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4y87 OCA], [http://pdbe.org/4y87 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4y87 RCSB], [http://www.ebi.ac.uk/pdbsum/4y87 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4y87 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[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> | + | [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> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: 3',5'-cyclic-GMP phosphodiesterase]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Human]]
| + | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Huang, M]] | + | [[Category: Huang M]] |
| - | [[Category: Enantiomeric differentiation]]
| + | |
| - | [[Category: Hydrolase-hydrolase inhibitor complex]]
| + | |
| - | [[Category: Inhibitor selectivity pocket]]
| + | |
| - | [[Category: Pharmacokinetic]]
| + | |
| - | [[Category: Phosphodiesterase 9a]]
| + | |
| Structural highlights
Function
PDE9A_HUMAN Hydrolyzes the second messenger cGMP, which is a key regulator of many important physiological processes.[1]
Publication Abstract from PubMed
Phosphodiesterase-9 (PDE9) inhibitors have been studied as potential therapeutics for treatment of central nervous system diseases and diabetes. Here, we report the discovery of a new category of PDE9 inhibitors by rational design on the basis of the crystal structures. The best compound, (S)-6-((1-(4-chlorophenyl)ethyl)amino)-1-cyclopentyl-1,5,6,7-tetrahydro-4H-pyrazo lo[3,4-day]pyrimidin-4-one [(S)-C33], has an IC50 value of 11 nM against PDE9 and the racemic C33 has bioavailability of 56.5% in the rat pharmacokinetic model. The crystal structures of PDE9 in the complex with racemic C33, (R)-C33, and (S)-C33 reveal subtle conformational asymmetry of two M-loops in the PDE9 dimer and different conformations of two C33 enantiomers. The structures also identified a small hydrophobic pocket that interacts with the tyrosyl tail of (S)-C33 but not with (R)-C33, and is thus possibly useful for improvement of selectivity of PDE9 inhibitors. The asymmetry of the M-loop and the different interactions of the C33 enantiomers imply the necessity to consider the whole PDE9 dimer in the design of inhibitors.
Structural Asymmetry of Phosphodiesterase-9A and a Unique Pocket for Selective Binding of a Potent Enantiomeric Inhibitor.,Huang M, Shao Y, Hou J, Cui W, Liang B, Huang Y, Li Z, Wu Y, Zhu X, Liu P, Wan Y, Ke H, Luo HB Mol Pharmacol. 2015 Nov;88(5):836-45. doi: 10.1124/mol.115.099747. Epub 2015 Aug , 27. PMID:26316540[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Liu S, Mansour MN, Dillman KS, Perez JR, Danley DE, Aeed PA, Simons SP, Lemotte PK, Menniti FS. Structural basis for the catalytic mechanism of human phosphodiesterase 9. Proc Natl Acad Sci U S A. 2008 Sep 9;105(36):13309-14. Epub 2008 Aug 29. PMID:18757755
- ↑ Huang M, Shao Y, Hou J, Cui W, Liang B, Huang Y, Li Z, Wu Y, Zhu X, Liu P, Wan Y, Ke H, Luo HB. Structural Asymmetry of Phosphodiesterase-9A and a Unique Pocket for Selective Binding of a Potent Enantiomeric Inhibitor. Mol Pharmacol. 2015 Nov;88(5):836-45. doi: 10.1124/mol.115.099747. Epub 2015 Aug , 27. PMID:26316540 doi:http://dx.doi.org/10.1124/mol.115.099747
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