1mz4

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[[Image:1mz4.png|left|200px]]
 
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{{STRUCTURE_1mz4| PDB=1mz4 | SCENE= }}
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==Crystal Structure of Cytochrome c550 from Thermosynechococcus elongatus==
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<StructureSection load='1mz4' size='340' side='right'caption='[[1mz4]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1mz4]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermosynechococcus_vestitus Thermosynechococcus vestitus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MZ4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MZ4 FirstGlance]. <br>
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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]] 1.8&#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=BCT:BICARBONATE+ION'>BCT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></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=1mz4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mz4 OCA], [https://pdbe.org/1mz4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1mz4 RCSB], [https://www.ebi.ac.uk/pdbsum/1mz4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1mz4 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CY550_THEVB CY550_THEVB] One of the extrinsic, lumenal subunits of photosystem II (PSII). PSII is a light-driven water plastoquinone oxidoreductase, using light energy to abstract electrons from H(2)O, generating a proton gradient subsequently used for ATP formation. The extrinsic proteins stabilize the structure of photosystem II oxygen-evolving complex (OEC), the ion environment of oxygen evolution and protect the OEC against heat-induced inactivation. Low-potential cytochrome c that plays a role in the OEC of PSII.[HAMAP-Rule:MF_01378]<ref>PMID:11427679</ref> <ref>PMID:20558739</ref> <ref>PMID:21367867</ref> <ref>PMID:25006873</ref>
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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/mz/1mz4_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=1mz4 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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First, the crystal structure of cytochrome c-550 (the psbV1 gene product) from the thermophilic cyanobacterium Thermosynechococcus elongatus has been determined to a resolution of 1.8 A. A comparison of the T. elongatus cytochrome c-550 structure to its counterparts from mesophilic organisms, Synechocystis 6803 and Arthrospira maxima, suggests that increased numbers of hydrogen bonds may play a role in the structural basis of thermostability. The cytochrome c-550 in T. elongatus also differs from that in Synechocystis 6803 and Arthrospira maxima in its lack of dimerization and the presence of a trigonal planar molecule, possibly bicarbonate, tightly bound to the heme propionate oxygen atoms. Cytochromes c-550 from T. elongatus, Synechocystis 6803 and Arthrospira maxima exhibit different EPR spectra. A correlation has been done between the heme-axial ligands geometries and the rhombicity calculated from the EPR spectra. This correlation indicates that binding of cytochrome c-550 to Photosystem II is accompanied by structural changes in the heme vicinity. Second, the psbV2 gene product has been found and purified. The UV-visible, EPR and Raman spectra are reported. From the spectroscopic data and from a theoretical structural model based on the cytochrome c-550 structure it is proposed that the 6th ligand of the heme-iron is the Tyr86.
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===Crystal Structure of Cytochrome c550 from Thermosynechococcus elongatus===
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Structural and EPR characterization of the soluble form of cytochrome c-550 and of the psbV2 gene product from the cyanobacterium Thermosynechococcus elongatus.,Kerfeld CA, Sawaya MR, Bottin H, Tran KT, Sugiura M, Cascio D, Desbois A, Yeates TO, Kirilovsky D, Boussac A Plant Cell Physiol. 2003 Jul;44(7):697-706. PMID:12881497<ref>PMID:12881497</ref>
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{{ABSTRACT_PUBMED_12881497}}
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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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==About this Structure==
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<div class="pdbe-citations 1mz4" style="background-color:#fffaf0;"></div>
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[[1mz4]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermosynechococcus_elongatus Thermosynechococcus elongatus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MZ4 OCA].
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==See Also==
==See Also==
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*[[Cytochrome c|Cytochrome c]]
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*[[Cytochrome C 3D structures|Cytochrome C 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:012881497</ref><references group="xtra"/>
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__TOC__
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[[Category: Thermosynechococcus elongatus]]
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</StructureSection>
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[[Category: Bottin, H.]]
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[[Category: Large Structures]]
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[[Category: Boussac, A.]]
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[[Category: Thermosynechococcus vestitus]]
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[[Category: Kerfeld, C A.]]
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[[Category: Bottin H]]
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[[Category: Kirilovsky, D.]]
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[[Category: Boussac A]]
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[[Category: Krogmann, D.]]
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[[Category: Kerfeld CA]]
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[[Category: Sawaya, M R.]]
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[[Category: Kirilovsky D]]
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[[Category: Sugiura, M.]]
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[[Category: Krogmann D]]
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[[Category: Tran, K T.]]
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[[Category: Sawaya MR]]
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[[Category: Yeates, T O.]]
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[[Category: Sugiura M]]
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[[Category: Electron transport]]
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[[Category: Tran KT]]
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[[Category: Psii associated cytochrome]]
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[[Category: Yeates TO]]

Current revision

Crystal Structure of Cytochrome c550 from Thermosynechococcus elongatus

PDB ID 1mz4

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