1e85

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[[Image:1e85.jpg|left|200px]]
 
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==Cytochrome c' from Alcaligenes xylosoxidans - reduced structure with NO bound to proximal side of heme==
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The line below this paragraph, containing "STRUCTURE_1e85", creates the "Structure Box" on the page.
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<StructureSection load='1e85' size='340' side='right'caption='[[1e85]], [[Resolution|resolution]] 1.35&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1e85]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Achromobacter_xylosoxidans Achromobacter xylosoxidans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E85 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1E85 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 1.35&#8491;</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=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=NO:NITRIC+OXIDE'>NO</scene>, <scene name='pdbligand=PCA:PYROGLUTAMIC+ACID'>PCA</scene></td></tr>
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{{STRUCTURE_1e85| PDB=1e85 | SCENE= }}
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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=1e85 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e85 OCA], [https://pdbe.org/1e85 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1e85 RCSB], [https://www.ebi.ac.uk/pdbsum/1e85 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1e85 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CYCP_ALCXX CYCP_ALCXX] Cytochrome c' is the most widely occurring bacterial c-type cytochrome. Cytochromes c' are high-spin proteins and the heme has no sixth ligand. Their exact function is not known.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/e8/1e85_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1e85 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Microbial cytochromes c' contain a 5-coordinate His-ligated heme that forms stable adducts with nitric oxide (NO) and carbon monoxide (CO), but not with dioxygen. We report the 1.95 and 1.35 A resolution crystal structures of the CO- and NO-bound forms of the reduced protein from Alcaligenes xylosoxidans. NO disrupts the His-Fe bond and binds in a novel mode to the proximal face of the heme, giving a 5-coordinate species. In contrast, CO binds 6-coordinate on the distal side. A second CO molecule, not bound to the heme, is located in the proximal pocket. Since the unusual spectroscopic properties of cytochromes c' are shared by soluble guanylate cyclase (sGC), our findings have potential implications for the activation of sGC induced by the binding of NO or CO to the heme domain.
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'''CYTOCHROME C' FROM ALCALIGENES XYLOSOXIDANS-REDUCED STRUCTURE WITH NO BOUND TO PROXIMAL SIDE OF HEME'''
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Unprecedented proximal binding of nitric oxide to heme: implications for guanylate cyclase.,Lawson DM, Stevenson CE, Andrew CR, Eady RR EMBO J. 2000 Nov 1;19(21):5661-71. PMID:11060017<ref>PMID:11060017</ref>
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==Overview==
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Microbial cytochromes c' contain a 5-coordinate His-ligated heme that forms stable adducts with nitric oxide (NO) and carbon monoxide (CO), but not with dioxygen. We report the 1.95 and 1.35 A resolution crystal structures of the CO- and NO-bound forms of the reduced protein from Alcaligenes xylosoxidans. NO disrupts the His-Fe bond and binds in a novel mode to the proximal face of the heme, giving a 5-coordinate species. In contrast, CO binds 6-coordinate on the distal side. A second CO molecule, not bound to the heme, is located in the proximal pocket. Since the unusual spectroscopic properties of cytochromes c' are shared by soluble guanylate cyclase (sGC), our findings have potential implications for the activation of sGC induced by the binding of NO or CO to the heme domain.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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1E85 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Achromobacter_xylosoxidans Achromobacter xylosoxidans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E85 OCA].
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</div>
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<div class="pdbe-citations 1e85" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Unprecedented proximal binding of nitric oxide to heme: implications for guanylate cyclase., Lawson DM, Stevenson CE, Andrew CR, Eady RR, EMBO J. 2000 Nov 1;19(21):5661-71. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11060017 11060017]
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*[[Cytochrome C 3D structures|Cytochrome C 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Achromobacter xylosoxidans]]
[[Category: Achromobacter xylosoxidans]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Andrew, C R.]]
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[[Category: Andrew CR]]
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[[Category: Eady, R R.]]
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[[Category: Eady RR]]
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[[Category: Lawson, D M.]]
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[[Category: Lawson DM]]
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[[Category: Stevenson, C E.M.]]
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[[Category: Stevenson CEM]]
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[[Category: 4-helix bundle]]
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[[Category: Cytochrome]]
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[[Category: Heme]]
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[[Category: Nitric oxide]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 14:46:58 2008''
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Current revision

Cytochrome c' from Alcaligenes xylosoxidans - reduced structure with NO bound to proximal side of heme

PDB ID 1e85

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