4eux

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==Structure of neuronal nitric oxide synthase heme domain in complex with 6-(5-(((3R,4R)-4-((6-amino-4-methylpyridin-2-yl)methyl)pyrrolidin-3-yl)oxy)pentyl)-4-methylpyridin-2-amine==
==Structure of neuronal nitric oxide synthase heme domain in complex with 6-(5-(((3R,4R)-4-((6-amino-4-methylpyridin-2-yl)methyl)pyrrolidin-3-yl)oxy)pentyl)-4-methylpyridin-2-amine==
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<StructureSection load='4eux' size='340' side='right' caption='[[4eux]], [[Resolution|resolution]] 2.14&Aring;' scene=''>
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<StructureSection load='4eux' size='340' side='right'caption='[[4eux]], [[Resolution|resolution]] 2.14&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4eux]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EUX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EUX FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4eux]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EUX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4EUX FirstGlance]. <br>
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</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=H4B:5,6,7,8-TETRAHYDROBIOPTERIN'>H4B</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=HW1:6-[5-({(3R,4R)-4-[(6-AMINO-4-METHYLPYRIDIN-2-YL)METHYL]PYRROLIDIN-3-YL}OXY)PENTYL]-4-METHYLPYRIDIN-2-AMINE'>HW1</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.14&#8491;</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Nos1, Bnos ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10116 Buffalo rat])</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</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=HW1:6-[5-({(3R,4R)-4-[(6-AMINO-4-METHYLPYRIDIN-2-YL)METHYL]PYRROLIDIN-3-YL}OXY)PENTYL]-4-METHYLPYRIDIN-2-AMINE'>HW1</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<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>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4eux FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eux OCA], [https://pdbe.org/4eux PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4eux RCSB], [https://www.ebi.ac.uk/pdbsum/4eux PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4eux ProSAT]</span></td></tr>
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<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=4eux FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eux OCA], [http://pdbe.org/4eux PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4eux RCSB], [http://www.ebi.ac.uk/pdbsum/4eux PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4eux ProSAT]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/NOS1_RAT NOS1_RAT]] 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. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum. Probably has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such SRR. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum.
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[https://www.uniprot.org/uniprot/NOS1_RAT NOS1_RAT] 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. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum. Probably has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such SRR. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum.
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The reduction of pathophysiologic levels of nitric oxide through inhibition of neuronal nitric oxide synthase (nNOS) has the potential to be therapeutically beneficial in various neurodegenerative diseases. We have developed a series of pyrrolidine-based nNOS inhibitors that exhibit excellent potencies and isoform selectivities (J. Am. Chem. Soc. 2010, 132, 5437). However, there are still important challenges, such as how to decrease the multiple positive charges derived from basic amino groups, which contribute to poor bioavailability, without losing potency and/or selectivity. Here we present an interdisciplinary study combining molecular docking, crystallography, molecular dynamics simulations, synthesis, and enzymology to explore potential pharmacophoric features of nNOS inhibitors and to design potent and selective monocationic nNOS inhibitors. The simulation results indicate that different hydrogen bond patterns, electrostatic interactions, hydrophobic interactions, and a water molecule bridge are key factors for stabilizing ligands and controlling ligand orientation. We find that a heteroatom in the aromatic head or linker chain of the ligand provides additional stability and blocks the substrate binding pocket. Finally, the computational insights are experimentally validated with double-headed pyridine analogs. The compounds reported here are among the most potent and selective monocationic pyrrolidine-based nNOS inhibitors reported to date, and 10 shows improved membrane permeability.
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Selective Monocationic Inhibitors of Neuronal Nitric Oxide Synthase. Binding Mode Insights from Molecular Dynamics Simulations.,Huang H, Ji H, Li H, Jing Q, Jansen Labby K, Martasek P, Roman LJ, Poulos TL, Silverman RB J Am Chem Soc. 2012 Jun 25. PMID:22731813<ref>PMID:22731813</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 4eux" style="background-color:#fffaf0;"></div>
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==See Also==
==See Also==
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*[[Nitric Oxide Synthase|Nitric Oxide Synthase]]
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*[[Nitric Oxide Synthase 3D structures|Nitric Oxide Synthase 3D structures]]
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Buffalo rat]]
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[[Category: Large Structures]]
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[[Category: Li, H]]
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[[Category: Rattus norvegicus]]
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[[Category: Poulos, T L]]
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[[Category: Li H]]
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[[Category: Inhibitor binding]]
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[[Category: Poulos TL]]
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[[Category: Nitric oxide synthase]]
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[[Category: Oxidoreductase-oxidoreductase inhibitor complex]]
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Current revision

Structure of neuronal nitric oxide synthase heme domain in complex with 6-(5-(((3R,4R)-4-((6-amino-4-methylpyridin-2-yl)methyl)pyrrolidin-3-yl)oxy)pentyl)-4-methylpyridin-2-amine

PDB ID 4eux

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