4mxk

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==X-ray structure of Fe(II)-ZnPIXFeBMb1==
==X-ray structure of Fe(II)-ZnPIXFeBMb1==
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<StructureSection load='4mxk' size='340' side='right' caption='[[4mxk]], [[Resolution|resolution]] 1.52&Aring;' scene=''>
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<StructureSection load='4mxk' size='340' side='right'caption='[[4mxk]], [[Resolution|resolution]] 1.52&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4mxk]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Phycd Phycd]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4MXK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4MXK FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4mxk]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Physeter_catodon Physeter catodon]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4MXK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4MXK 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=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=ZNH:PROTOPORPHYRIN+IX+CONTAINING+ZN'>ZNH</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]] 1.52&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4mxl|4mxl]]</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=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=ZNH:PROTOPORPHYRIN+IX+CONTAINING+ZN'>ZNH</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9755 PHYCD])</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=4mxk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4mxk OCA], [https://pdbe.org/4mxk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4mxk RCSB], [https://www.ebi.ac.uk/pdbsum/4mxk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4mxk 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=4mxk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4mxk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4mxk RCSB], [http://www.ebi.ac.uk/pdbsum/4mxk PDBsum]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/MYG_PHYCD MYG_PHYCD]] Serves as a reserve supply of oxygen and facilitates the movement of oxygen within muscles.
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[https://www.uniprot.org/uniprot/MYG_PHYMC MYG_PHYMC] Serves as a reserve supply of oxygen and facilitates the movement of oxygen within muscles.
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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A major barrier to understanding the mechanism of nitric oxide reductases (NORs) is the lack of a selective probe of NO binding to the nonheme FeB center. By replacing the heme in a biosynthetic model of NORs, which structurally and functionally mimics NORs, with isostructural ZnPP, the electronic structure and functional properties of the FeB nitrosyl complex was probed. This approach allowed observation of the first S=3/2 nonheme {FeNO}7 complex in a protein-based model system of NOR. Detailed spectroscopic and computational studies show that the electronic state of the {FeNO}7 complex is best described as a high spin ferrous iron (S=2) antiferromagnetically coupled to an NO radical (S= 1/2) [Fe2+ -NO. ]. The radical nature of the FeB -bound NO would facilitate NN bond formation by radical coupling with the heme-bound NO. This finding, therefore, supports the proposed trans mechanism of NO reduction by NORs.
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Spectroscopic and Computational Study of a Nonheme Iron Nitrosyl Center in a Biosynthetic Model of Nitric Oxide Reductase.,Chakraborty S, Reed J, Ross M, Nilges MJ, Petrik ID, Ghosh S, Hammes-Schiffer S, Sage JT, Zhang Y, Schulz CE, Lu Y Angew Chem Int Ed Engl. 2014 Jan 31. doi: 10.1002/anie.201308431. PMID:24481708<ref>PMID:24481708</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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==See Also==
==See Also==
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*[[Myoglobin|Myoglobin]]
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*[[Myoglobin 3D structures|Myoglobin 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: Phycd]]
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[[Category: Large Structures]]
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[[Category: Chakraborty, S]]
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[[Category: Physeter catodon]]
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[[Category: Lu, Y]]
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[[Category: Chakraborty S]]
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[[Category: Petrik, I]]
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[[Category: Lu Y]]
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[[Category: Globin fold]]
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[[Category: Petrik I]]
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[[Category: Oxygen transport]]
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Current revision

X-ray structure of Fe(II)-ZnPIXFeBMb1

PDB ID 4mxk

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