6ink: Difference between revisions

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'''Unreleased structure'''


The entry 6ink is ON HOLD until Paper Publication
==Crystal structure of PDE4D complexed with a novel inhibitor==
<StructureSection load='6ink' size='340' side='right'caption='[[6ink]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6ink]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6INK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6INK FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AKU:(1S)-1-[2-(1H-indol-3-yl)ethyl]-6,7-dimethoxy-3,4-dihydroisoquinoline-2(1H)-carbaldehyde'>AKU</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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-AMP_phosphodiesterase 3',5'-cyclic-AMP phosphodiesterase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.4.53 3.1.4.53] </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=6ink FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ink OCA], [http://pdbe.org/6ink PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6ink RCSB], [http://www.ebi.ac.uk/pdbsum/6ink PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6ink ProSAT]</span></td></tr>
</table>
== Disease ==
[[http://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:[http://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 ==
[[http://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 ==
Psoriasis is a common, chronic inflammatory disease characterized by abnormal skin plaques, and the effectiveness of phosphodiesterase 4 (PDE4) inhibitor to lessen the symptoms of psoriasis has been proved. Aiming to find a novel PDE4 inhibitor acting as an effective, safe, and convenient therapeutic agent, we constructed a library consisting of berberine analogues, and compound 2 with a tetrahydroisoquinoline scaffold was identified as a novel and potent hit. The structure-aided and cell-based structure-activity relationship studies on a series of tetrahydro-isoquinolines lead to efficient discovery of a qualified lead compound (16) with the high potency and selectivity, well-characterized binding mechanism, high cell permeability, good safety and pharmacokinetic profile, and impressive in vivo efficacy on antipsoriasis, in particular with a topical application. Thus, our study presents a prime example for efficient discovery of novel, potent lead compounds derived from natural products using a combination of medicinal chemistry, biochemical, biophysical, and pharmacological approaches.


Authors: Zhang, X.L., Su, H.X., Xu, Y.C.
Structure-Aided Identification and Optimization of Tetrahydro-isoquinolines as Novel PDE4 Inhibitors Leading to Discovery of an Effective Antipsoriasis Agent.,Zhang X, Dong G, Li H, Chen W, Li J, Feng C, Gu Z, Zhu F, Zhang R, Li M, Tang W, Liu H, Xu Y J Med Chem. 2019 Jun 13;62(11):5579-5593. doi: 10.1021/acs.jmedchem.9b00518. Epub, 2019 May 31. PMID:31099559<ref>PMID:31099559</ref>


Description: Crystal structure of PDE4D complexed with a novel inhibitor
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
[[Category: Zhang, X.L]]
<div class="pdbe-citations 6ink" style="background-color:#fffaf0;"></div>
[[Category: Xu, Y.C]]
== References ==
[[Category: Su, H.X]]
<references/>
__TOC__
</StructureSection>
[[Category: 3',5'-cyclic-AMP phosphodiesterase]]
[[Category: Large Structures]]
[[Category: Su, H X]]
[[Category: Xu, Y C]]
[[Category: Zhang, X L]]
[[Category: Complex]]
[[Category: Hydrolase]]
[[Category: Hydrolase-hydrolase inhibitor complex]]
[[Category: Inhibitor]]
[[Category: Pde4d]]

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