3n2r: Difference between revisions
New page: '''Unreleased structure''' The entry 3n2r is ON HOLD Authors: Li, H., Poulos, T.L. Description: Structure of neuronal nitric oxide synthase heme domain in complex with 6-(((3R,4R/3S,4S... |
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The | ==Structure of neuronal nitric oxide synthase heme domain in complex with 6-(((3R,4R/3S,4S)-4-(3-Phenoxyphenoxy)pyrrolidin-3-yl)methyl)pyridin-2-amine== | ||
<StructureSection load='3n2r' size='340' side='right'caption='[[3n2r]], [[Resolution|resolution]] 1.90Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3n2r]] 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=3N2R OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3N2R 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]] 1.9Å</td></tr> | |||
<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=XJH:6-{[(3R,4R)-4-(3-PHENOXYPHENOXY)PYRROLIDIN-3-YL]METHYL}PYRIDIN-2-AMINE'>XJH</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=3n2r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3n2r OCA], [https://pdbe.org/3n2r PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3n2r RCSB], [https://www.ebi.ac.uk/pdbsum/3n2r PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3n2r ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[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. | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n2/3n2r_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3n2r ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Selective inhibitors of neuronal nitric oxide synthase (nNOS) have the potential to develop into new neurodegenerative therapeutics. Recently, we described the discovery of novel nNOS inhibitors (1a and 1b) based on a cis-pyrrolidine pharmacophore. These compounds and related ones were found to have poor blood-brain barrier permeability, presumably because of the basic nitrogens in the molecule. Here, a series of monocationic compounds was designed on the basis of docking experiments using the crystal structures of 1a,b bound to nNOS. These compounds were synthesized and evaluated for their ability to inhibit neuronal nitric oxide synthase. Despite the excellent overlap of these compounds with 1a,b bound to nNOS, they exhibited low potency. This is because they bound in the nNOS active site in the normal orientation rather than the expected flipped orientation used in the computer modeling. The biphenyl or phenoxyphenyl tail is disordered and does not form good protein-ligand interactions. These studies demonstrate the importance of the size and rigidity of the side chain tail and the second basic amino group for nNOS binding efficiency and the importance of the hydrophobic tail for conformational orientation in the active site of nNOS. | |||
Structure-based design, synthesis, and biological evaluation of lipophilic-tailed monocationic inhibitors of neuronal nitric oxide synthase.,Xue F, Huang J, Ji H, Fang J, Li H, Martasek P, Roman LJ, Poulos TL, Silverman RB Bioorg Med Chem. 2010 Sep 1;18(17):6526-37. Epub 2010 Jul 1. PMID:20673724<ref>PMID:20673724</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3n2r" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Nitric Oxide Synthase 3D structures|Nitric Oxide Synthase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Rattus norvegicus]] | |||
[[Category: Li H]] | |||
[[Category: Poulos TL]] | |||