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''' | ==Structure of bovine endothelial nitric oxide synthase heme domain in complex with 7-((3-(2-(Methylamino)ethyl)phenoxy)methyl)quinolin-2- amine== | ||
<StructureSection load='5adj' size='340' side='right' caption='[[5adj]], [[Resolution|resolution]] 2.22Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[5adj]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5ADJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ADJ FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=H4B:5,6,7,8-TETRAHYDROBIOPTERIN'>H4B</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=M94:7-[[3-[2-(METHYLAMINO)ETHYL]PHENOXY]METHYL]QUINOLIN-2-AMINE'>M94</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | |||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CAS:S-(DIMETHYLARSENIC)CYSTEINE'>CAS</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5ad4|5ad4]], [[5ad5|5ad5]], [[5ad6|5ad6]], [[5ad7|5ad7]], [[5ad8|5ad8]], [[5ad9|5ad9]], [[5ada|5ada]], [[5adb|5adb]], [[5adc|5adc]], [[5add|5add]], [[5ade|5ade]], [[5adf|5adf]], [[5adg|5adg]], [[5adi|5adi]], [[5adk|5adk]], [[5adl|5adl]], [[5adm|5adm]], [[5adn|5adn]]</td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Nitric-oxide_synthase_(NADPH_dependent) Nitric-oxide synthase (NADPH dependent)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.13.39 1.14.13.39] </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=5adj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5adj OCA], [http://pdbe.org/5adj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5adj RCSB], [http://www.ebi.ac.uk/pdbsum/5adj PDBsum]</span></td></tr> | |||
</table> | |||
== Function == | |||
[[http://www.uniprot.org/uniprot/NOS3_BOVIN NOS3_BOVIN]] Produces nitric oxide (NO) which is implicated in vascular smooth muscle relaxation through a cGMP-mediated signal transduction pathway. NO mediates vascular endothelial growth factor (VEGF)-induced angiogenesis in coronary vessels and promotes blood clotting through the activation of platelets. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Excess nitric oxide (NO) produced by neuronal nitric oxide synthase (nNOS) is implicated in neurodegenerative disorders. As a result, inhibition of nNOS and reduction of NO levels is desirable therapeutically, but many nNOS inhibitors are poorly bioavailable. Promising members of our previously reported 2-aminoquinoline class of nNOS inhibitors, although orally bioavailable and brain-penetrant, suffer from unfavorable off-target binding to other CNS receptors, and they resemble known promiscuous binders. Rearranged phenyl ether- and aniline-linked 2-aminoquinoline derivatives were therefore designed to (a) disrupt the promiscuous binding pharmacophore and diminish off-target interactions and (b) preserve potency, isoform selectivity, and cell permeability. A series of these compounds was synthesized and tested against purified nNOS, endothelial NOS (eNOS), and inducible NOS (iNOS) enzymes. One compound, 20, displayed high potency, selectivity, and good human nNOS inhibition, and retained some permeability in a Caco-2 assay. Most promisingly, CNS receptor counterscreening revealed that this rearranged scaffold significantly reduces off-target binding. | |||
Phenyl Ether- and Aniline-Containing 2-Aminoquinolines as Potent and Selective Inhibitors of Neuronal Nitric Oxide Synthase.,Cinelli MA, Li H, Pensa AV, Kang S, Roman LJ, Martasek P, Poulos TL, Silverman RB J Med Chem. 2015 Nov 12;58(21):8694-712. doi: 10.1021/acs.jmedchem.5b01330. Epub , 2015 Oct 27. PMID:26469213<ref>PMID:26469213</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 5adj" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Li, H]] | [[Category: Li, H]] | ||
[[Category: Poulos, T L]] | |||
[[Category: Inhibitor complex]] | |||
[[Category: Nitric oxide synthase]] | |||
[[Category: Oxidoreductase]] | |||