5uo3: Difference between revisions
New page: '''Unreleased structure''' The entry 5uo3 is ON HOLD until Paper Publication Authors: Li, H., Poulos, T.L. Description: Structure of human neuronal nitric oxide synthase heme domain in... |
No edit summary |
||
| (5 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
==Structure of human neuronal nitric oxide synthase heme domain in complex with 3-[(2-amino-4-methylquinolin-7-yl)methoxy]-5-((methylamino)methyl)benzonitrile== | |||
<StructureSection load='5uo3' size='340' side='right'caption='[[5uo3]], [[Resolution|resolution]] 2.20Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[5uo3]] 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=5UO3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5UO3 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]] 2.2Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=8EY:3-[(2-AMINO-4-METHYLQUINOLIN-7-YL)METHOXY]-5-[(METHYLAMINO)METHYL]BENZONITRILE'>8EY</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=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=5uo3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5uo3 OCA], [https://pdbe.org/5uo3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5uo3 RCSB], [https://www.ebi.ac.uk/pdbsum/5uo3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5uo3 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/NOS1_HUMAN NOS1_HUMAN] Produces nitric oxide (NO) which is a messenger molecule with diverse functions throughout the body. In the brain and peripheral nervous system, NO displays many properties of a neurotransmitter. Probably has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such SRR. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Neuronal nitric oxide synthase (nNOS) inhibition is a promising strategy to treat neurodegenerative disorders, but the development of nNOS inhibitors is often hindered by poor pharmacokinetics. We previously developed a class of membrane-permeable 2-aminoquinoline inhibitors and later rearranged the scaffold to decrease off-target binding. However, the resulting compounds had decreased permeability, low human nNOS activity, and low selectivity versus human eNOS. In this study, 5-substituted phenyl ether-linked aminoquinolines and derivatives were synthesized and assayed against purified NOS isoforms. 5-Cyano compounds are especially potent and selective rat and human nNOS inhibitors. Activity and selectivity are mediated by the binding of the cyano group to a new auxiliary pocket in nNOS. Potency was enhanced by methylation of the quinoline and by introduction of simple chiral moieties, resulting in a combination of hydrophobic and auxiliary pocket effects that yielded high ( approximately 500-fold) n/e selectivity. Importantly, the Caco-2 assay also revealed improved membrane permeability over previous compounds. | |||
Nitrile in the Hole: Discovery of a Small Auxiliary Pocket in Neuronal Nitric Oxide Synthase Leading to the Development of Potent and Selective 2-Aminoquinoline Inhibitors.,Cinelli MA, Li H, Chreifi G, Poulos TL, Silverman RB J Med Chem. 2017 Apr 19. doi: 10.1021/acs.jmedchem.7b00259. PMID:28422508<ref>PMID:28422508</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: | <div class="pdbe-citations 5uo3" style="background-color:#fffaf0;"></div> | ||
[[Category: Li | |||
==See Also== | |||
*[[Nitric Oxide Synthase 3D structures|Nitric Oxide Synthase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Li H]] | |||
[[Category: Poulos TL]] | |||
Latest revision as of 16:31, 4 October 2023
Structure of human neuronal nitric oxide synthase heme domain in complex with 3-[(2-amino-4-methylquinolin-7-yl)methoxy]-5-((methylamino)methyl)benzonitrileStructure of human neuronal nitric oxide synthase heme domain in complex with 3-[(2-amino-4-methylquinolin-7-yl)methoxy]-5-((methylamino)methyl)benzonitrile
Structural highlights
FunctionNOS1_HUMAN Produces nitric oxide (NO) which is a messenger molecule with diverse functions throughout the body. In the brain and peripheral nervous system, NO displays many properties of a neurotransmitter. Probably has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such SRR. Publication Abstract from PubMedNeuronal nitric oxide synthase (nNOS) inhibition is a promising strategy to treat neurodegenerative disorders, but the development of nNOS inhibitors is often hindered by poor pharmacokinetics. We previously developed a class of membrane-permeable 2-aminoquinoline inhibitors and later rearranged the scaffold to decrease off-target binding. However, the resulting compounds had decreased permeability, low human nNOS activity, and low selectivity versus human eNOS. In this study, 5-substituted phenyl ether-linked aminoquinolines and derivatives were synthesized and assayed against purified NOS isoforms. 5-Cyano compounds are especially potent and selective rat and human nNOS inhibitors. Activity and selectivity are mediated by the binding of the cyano group to a new auxiliary pocket in nNOS. Potency was enhanced by methylation of the quinoline and by introduction of simple chiral moieties, resulting in a combination of hydrophobic and auxiliary pocket effects that yielded high ( approximately 500-fold) n/e selectivity. Importantly, the Caco-2 assay also revealed improved membrane permeability over previous compounds. Nitrile in the Hole: Discovery of a Small Auxiliary Pocket in Neuronal Nitric Oxide Synthase Leading to the Development of Potent and Selective 2-Aminoquinoline Inhibitors.,Cinelli MA, Li H, Chreifi G, Poulos TL, Silverman RB J Med Chem. 2017 Apr 19. doi: 10.1021/acs.jmedchem.7b00259. PMID:28422508[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
|
| ||||||||||||||||||