View source for 6acb


==Crystal structure of PDE5 in complex with inhibitor LW1805==
<StructureSection load='6acb' size='340' side='right'caption='[[6acb]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6acb]] is a 1 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=6ACB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6ACB FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=9T9:3-[(2H-1,3-benzodioxol-5-yl)methyl]-8-fluoro-6-{[2-(4-methylpiperazin-1-yl)ethyl]amino}-1-(1,3-thiazol-2-yl)[1]benzopyrano[2,3-c]pyrrol-9(2H)-one'>9T9</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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=6acb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6acb OCA], [https://pdbe.org/6acb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6acb RCSB], [https://www.ebi.ac.uk/pdbsum/6acb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6acb ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PDE5A_HUMAN PDE5A_HUMAN] Plays a role in signal transduction by regulating the intracellular concentration of cyclic nucleotides. This phosphodiesterase catalyzes the specific hydrolysis of cGMP to 5'-GMP.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
To further explore the structure-activity relationship around the chromeno[2,3- c]pyrrol-9(2 H)-one scaffold, 19 derivatives as inhibitors against PDE5 were discovered. The most potent inhibitor 3 has an IC50 of 0.32 nM with remarkable selectivity and druglike profile. Oral administration of 3 (1.25 mg/kg) caused comparable therapeutic effects to sildenafil (10.0 mg/kg) against pulmonary arterial hypertension. Further, different binding patterns from sildenafil were revealed in cocrystal structures, which provide structural templates for discovery of highly potent PDE5 inhibitors.

Optimization of Chromeno[2,3- c]pyrrol-9(2 H)-ones as Highly Potent, Selective, and Orally Bioavailable PDE5 Inhibitors: Structure-Activity Relationship, X-ray Crystal Structure, and Pharmacodynamic Effect on Pulmonary Arterial Hypertension.,Wu D, Huang Y, Chen Y, Huang YY, Geng H, Zhang T, Zhang C, Li Z, Guo L, Chen J, Luo HB J Med Chem. 2018 Sep 7. doi: 10.1021/acs.jmedchem.8b01209. PMID:30148362<ref>PMID:30148362</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6acb" style="background-color:#fffaf0;"></div>

==See Also==
*[[Phosphodiesterase 3D structures|Phosphodiesterase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Huang YD]]
[[Category: Huang YY]]
[[Category: Luo HB]]
[[Category: Wu D]]