View source for 6kk0


==Crystal structure of PDE4D catalytic domain complexed with compound 4e==
<StructureSection load='6kk0' size='340' side='right'caption='[[6kk0]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6kk0]] 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=6KK0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6KK0 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]] 2.2000875&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=M36:7-[8-methoxy-2,2-dimethyl-7-(3-methylbut-2-enyl)-5-oxidanyl-6-oxidanylidene-pyrano[3,2-b]xanthen-9-yl]oxyheptanoic+acid'>M36</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=6kk0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6kk0 OCA], [https://pdbe.org/6kk0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6kk0 RCSB], [https://www.ebi.ac.uk/pdbsum/6kk0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6kk0 ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/PDE4D_HUMAN PDE4D_HUMAN] Note=Genetic variations in PDE4D might be associated with susceptibility to stroke. PubMed:17006457 states that association with stroke has to be considered with caution.  Defects in PDE4D are the cause of acrodysostosis type 2, with or without hormone resistance (ACRDYS2) [MIM:[https://omim.org/entry/614613 614613]. ACRDYS2 is a pleiotropic disorder characterized by skeletal, endocrine, and neurological abnormalities. Skeletal features include brachycephaly, midface hypoplasia with a small upturned nose, brachydactyly, and lumbar spinal stenosis. Endocrine abnormalities include hypothyroidism and hypogonadism in males and irregular menses in females. Developmental disability is a common finding but is variable in severity and can be associated with significant behavioral problems.<ref>PMID:22464250</ref> 
== Function ==
[https://www.uniprot.org/uniprot/PDE4D_HUMAN PDE4D_HUMAN] Hydrolyzes the second messenger cAMP, which is a key regulator of many important physiological processes.<ref>PMID:15260978</ref> <ref>PMID:15576036</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
To validate PDE4 inhibitors as novel therapeutic agents against vascular dementia (VaD), 25 derivatives were discovered from the natural inhibitor alpha-mangostin (IC50 = 1.31 muM). Hit-to-lead optimization identified a novel and selective PDE4 inhibitor 4e (IC50 = 17 nM), which adopted a different binding pattern from PDE4 inhibitors roflumilast and rolipram. Oral administration of 4e at a dose of 10 mg/kg exhibited remarkable therapeutic effects in a VaD model and did not cause emesis to beagle dogs, indicating its potential as a novel anti-VaD agent.

Discovery and Optimization of alpha-Mangostin Derivatives as Novel PDE4 Inhibitors for the Treatment of Vascular Dementia.,Liang J, Huang YY, Zhou Q, Gao Y, Li Z, Wu D, Yu S, Guo L, Chen Z, Huang L, Liang SH, He X, Wu R, Luo HB J Med Chem. 2020 Mar 12. doi: 10.1021/acs.jmedchem.0c00060. PMID:32115956<ref>PMID:32115956</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6kk0" style="background-color:#fffaf0;"></div>

==See Also==
*[[Phosphodiesterase 3D structures|Phosphodiesterase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: He X]]
[[Category: Huang Y-Y]]
[[Category: Luo H-B]]