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[[Image:2orl.gif|left|200px]]
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{{STRUCTURE_2orl|  PDB=2orl  |  SCENE=  }}
'''Solution structure of the cytochrome c- para-aminophenol adduct'''


==Solution structure of the cytochrome c- para-aminophenol adduct==
<StructureSection load='2orl' size='340' side='right'caption='[[2orl]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2orl]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ORL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ORL FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR,  models</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=4NL:4-AMINOPHENOL'>4NL</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</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=2orl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2orl OCA], [https://pdbe.org/2orl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2orl RCSB], [https://www.ebi.ac.uk/pdbsum/2orl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2orl ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CYC1_YEAST CYC1_YEAST] Electron carrier protein. The oxidized form of the cytochrome c heme group can accept an electron from the heme group of the cytochrome c1 subunit of cytochrome reductase. Cytochrome c then transfers this electron to the cytochrome oxidase complex, the final protein carrier in the mitochondrial electron-transport chain.
== 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/2orl_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2orl ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Protein-protein interactions are driven by specific properties of the molecular surfaces. Cytochrome c, a small electron transfer protein, is involved in a number of biologically relevant interactions with macromolecular partners. Small molecules may interfere with such interactions by binding to the surface of cytochrome c. Here we investigated the possibility of weak intermolecular interactions between reduced cytochrome c and a library of 325 small molecules, using WaterLOGSY NMR spectroscopy. Specific binding was found for p-aminophenol. The solution structure of the p-aminophenol-cytochrome c adduct was determined using a combination of in silico tools and NMR-based restraints. The ligand interacts in a specific binding site on the protein surface through a combination of stacking and H-bond interactions. Small but meaningful rearrangements of the solvent-exposed side chains are observed upon ligand binding and contribute to the stabilization of the complex.


==Overview==
Cytochrome c and organic molecules: solution structure of the p-aminophenol adduct.,Assfalg M, Bertini I, Del Conte R, Giachetti A, Turano P Biochemistry. 2007 May 29;46(21):6232-8. Epub 2007 May 9. PMID:17488096<ref>PMID:17488096</ref>
Protein-protein interactions are driven by specific properties of the molecular surfaces. Cytochrome c, a small electron transfer protein, is involved in a number of biologically relevant interactions with macromolecular partners. Small molecules may interfere with such interactions by binding to the surface of cytochrome c. Here we investigated the possibility of weak intermolecular interactions between reduced cytochrome c and a library of 325 small molecules, using WaterLOGSY NMR spectroscopy. Specific binding was found for p-aminophenol. The solution structure of the p-aminophenol-cytochrome c adduct was determined using a combination of in silico tools and NMR-based restraints. The ligand interacts in a specific binding site on the protein surface through a combination of stacking and H-bond interactions. Small but meaningful rearrangements of the solvent-exposed side chains are observed upon ligand binding and contribute to the stabilization of the complex.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
2ORL is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ORL OCA].
</div>
<div class="pdbe-citations 2orl" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Cytochrome c and organic molecules: solution structure of the p-aminophenol adduct., Assfalg M, Bertini I, Del Conte R, Giachetti A, Turano P, Biochemistry. 2007 May 29;46(21):6232-8. Epub 2007 May 9. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17488096 17488096]
*[[Cytochrome C 3D structures|Cytochrome C 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Single protein]]
[[Category: Assfalg M]]
[[Category: Assfalg, M.]]
[[Category: Bertini I]]
[[Category: Bertini, I.]]
[[Category: Del Conte R]]
[[Category: Conte, R Del.]]
[[Category: Giachetti A]]
[[Category: Giachetti, A.]]
[[Category: Turano P]]
[[Category: Turano, P.]]
[[Category: Protein-ligand adduct]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 11:31:28 2008''

Latest revision as of 08:26, 13 August 2026

Solution structure of the cytochrome c- para-aminophenol adduct

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