2ors: Difference between revisions

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[[Image:2ors.gif|left|200px]]<br /><applet load="2ors" size="350" color="white" frame="true" align="right" spinBox="true"
caption="2ors, resolution 2.00&Aring;" />
'''Murine Inducible Nitric Oxide Synthase Oxygenase Domain (DELTA 114) 4-(Benzo[1,3]dioxol-5-yloxy)-2-(4-imidazol-1-yl-phenoxy)-6-methyl-pyrimidine Complex'''<br />


==Overview==
==Murine Inducible Nitric Oxide Synthase Oxygenase Domain (DELTA 114) 4-(Benzo[1,3]dioxol-5-yloxy)-2-(4-imidazol-1-yl-phenoxy)-6-methyl-pyrimidine Complex==
By the screening of a combinatorial library for inhibitors of nitric oxide (NO) formation by the inducible isoform of nitric oxide synthase (iNOS) using a whole-cell assay, 2-(imidazol-1-yl)pyrimidines were identified. Compounds were found to inhibit the dimerization of iNOS monomers, thus preventing the formation of the dimeric, active form of the enzyme. Optimization led to the selection of the potent, selective, and orally available iNOS dimerization inhibitor, 21b, which significantly ameliorated adjuvant-induced arthritis in a rat model. Analysis of the crystal structure of the 21b--iNOS monomer complex provided a rationalization for both the SAR and the mechanism by which 21b blocks the formation of the protein--protein interaction present in the dimeric form of iNOS.
<StructureSection load='2ors' size='340' side='right'caption='[[2ors]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2ors]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ORS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ORS 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&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=391:4-(1,3-BENZODIOXOL-5-YLOXY)-2-[4-(1H-IMIDAZOL-1-YL)PHENOXY]-6-METHYLPYRIMIDINE'>391</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</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=2ors FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ors OCA], [https://pdbe.org/2ors PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ors RCSB], [https://www.ebi.ac.uk/pdbsum/2ors PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ors ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/NOS2_MOUSE NOS2_MOUSE] Produces nitric oxide (NO) which is a messenger molecule with diverse functions throughout the body. In macrophages, NO mediates tumoricidal and bactericidal actions. Also has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such COX2.<ref>PMID:16373578</ref>
== 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/or/2ors_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=2ors ConSurf].
<div style="clear:both"></div>


==About this Structure==
==See Also==
2ORS is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] with <scene name='pdbligand=HEM:'>HEM</scene>, <scene name='pdbligand=391:'>391</scene> and <scene name='pdbligand=EDO:'>EDO</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Nitric-oxide_synthase Nitric-oxide synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.13.39 1.14.13.39] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ORS OCA].
*[[Nitric Oxide Synthase 3D structures|Nitric Oxide Synthase 3D structures]]
 
== References ==
==Reference==
<references/>
Design, synthesis, and activity of 2-imidazol-1-ylpyrimidine derived inducible nitric oxide synthase dimerization inhibitors., Davey DD, Adler M, Arnaiz D, Eagen K, Erickson S, Guilford W, Kenrick M, Morrissey MM, Ohlmeyer M, Pan G, Paradkar VM, Parkinson J, Polokoff M, Saionz K, Santos C, Subramanyam B, Vergona R, Wei RG, Whitlow M, Ye B, Zhao ZS, Devlin JJ, Phillips G, J Med Chem. 2007 Mar 22;50(6):1146-57. Epub 2007 Feb 23. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17315988 17315988]
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Nitric-oxide synthase]]
[[Category: Adler M]]
[[Category: Single protein]]
[[Category: Whitlow M]]
[[Category: Adler, M.]]
[[Category: Whitlow, M.]]
[[Category: 391]]
[[Category: EDO]]
[[Category: HEM]]
[[Category: dimerization]]
[[Category: heme]]
[[Category: inhibitor]]
[[Category: l-arginine monooxygenase]]
[[Category: nitric oxide]]
[[Category: nos]]
 
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