View source for 4muw


==Crystal Structure of PDE10A with Novel Keto-Benzimidazole Inhibitor==
<StructureSection load='4muw' size='340' side='right'caption='[[4muw]], [[Resolution|resolution]] 2.64&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4muw]] 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=4MUW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4MUW 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]] 2.639&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2F4:2-{4-[(6,7-DIFLUORO-1H-BENZIMIDAZOL-2-YL)AMINO]PHENOXY}-N-METHYL-3,4-BIPYRIDIN-2-AMINE'>2F4</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</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=4muw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4muw OCA], [https://pdbe.org/4muw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4muw RCSB], [https://www.ebi.ac.uk/pdbsum/4muw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4muw ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PDE10_HUMAN PDE10_HUMAN] Plays a role in signal transduction by regulating the intracellular concentration of cyclic nucleotides. Can hydrolyze both cAMP and cGMP, but has higher affinity for cAMP and is more efficient with cAMP as substrate.<ref>PMID:17389385</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Our development of PDE10A inhibitors began with an HTS screening hit (1) that exhibited both high p-glycoprotein (P-gp) efflux ratios in rat and human and poor metabolic stability. Based on co-crystal structure of 1 in human PDE10A enzyme, we designed a novel keto-benzimidazole 26 with comparable PDE10A potency devoid of efflux liabilities. On target in vivo coverage of PDE10A in rat brain was assessed using our previously reported LC-MS/MS receptor occupancy (RO) technology. Compound 26 achieved 55% RO of PDE10A at 30 mg/kg po and covered PDE10A receptors in rat brain in a dose-dependent manner. Co-crystal structure of 26 in PDE10A confirmed the binding mode of the novel scaffold. Further optimization resulted in the identification of keto-benzimidazole 34 which showed an increased in vivo efficacy of 57% RO in rats at 10 mg/kg po and an improved in vivo rat clearance and oral bioavailability.

Design, Optimization, and Biological Evaluation of Novel Keto-Benzimidazoles as Potent and Selective Inhibitors of Phosphodiesterase 10A (PDE10A).,Hu E, Kunz RK, Chen N, Rumfelt S, Siegmund A, Andrews K, Chmait S, Zhao S, Davis C, Chen H, Lester-Zeiner D, Ma J, Biorn C, Shi J, Porter A, Treanor J, Allen JR J Med Chem. 2013 Oct 8. PMID:24102193<ref>PMID:24102193</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4muw" style="background-color:#fffaf0;"></div>

==See Also==
*[[Phosphodiesterase 3D structures|Phosphodiesterase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Chmait S]]
[[Category: Jordan S]]