1cxc

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[[Image:1cxc.jpg|left|200px]]
 
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{{Structure
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==CRYSTALLIZATION AND X-RAY STRUCTURE DETERMINATION OF CYTOCHROME C2 FROM RHODOBACTER SPHAEROIDES IN THREE CRYSTAL FORMS==
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|PDB= 1cxc |SIZE=350|CAPTION= <scene name='initialview01'>1cxc</scene>, resolution 1.6&Aring;
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<StructureSection load='1cxc' size='340' side='right'caption='[[1cxc]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>
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<table><tr><td colspan='2'>[[1cxc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Cereibacter_sphaeroides Cereibacter sphaeroides]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CXC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CXC FirstGlance]. <br>
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|ACTIVITY=
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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]] 1.6&#8491;</td></tr>
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|GENE=
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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></td></tr>
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|DOMAIN=
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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=1cxc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cxc OCA], [https://pdbe.org/1cxc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cxc RCSB], [https://www.ebi.ac.uk/pdbsum/1cxc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cxc ProSAT]</span></td></tr>
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|RELATEDENTRY=
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1cxc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cxc OCA], [http://www.ebi.ac.uk/pdbsum/1cxc PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1cxc RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/CYC2_CERSP CYC2_CERSP] Cytochrome c2 is found mainly in purple, non-sulfur, photosynthetic bacteria where it functions as the electron donor to the oxidized bacteriochlorophyll in the photophosphorylation pathway. However, it may also have a role in the respiratory chain and is found in some non-photosynthetic bacteria.
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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/cx/1cxc_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1cxc ConSurf].
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<div style="clear:both"></div>
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'''CRYSTALLIZATION AND X-RAY STRUCTURE DETERMINATION OF CYTOCHROME C2 FROM RHODOBACTER SPHAEROIDES IN THREE CRYSTAL FORMS'''
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==See Also==
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*[[Cytochrome C 3D structures|Cytochrome C 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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Cytochrome c(2) serves as the secondary electron donor that reduces the photo-oxidized bacteriochlorophyll dimer in photosynthetic bacteria. Cytochrome c(2) from Rhodobacter sphaeroides has been crystallized in three different forms. At high ionic strength, crystals of a hexagonal space group (P6(1)22) were obtained, while at low ionic strength, triclinic (P1) and tetragonal (P4(1)2(1)2) crystals were formed. The three-dimensional structures of the cytochrome in all three crystal forms have been determined by X-ray diffraction at resolutions of 2.20 A (hexagonal), 1.95 A, (triclinic) and 1.53 A (tetragonal). The most significant difference observed was the binding of an imidazole molecule to the iron atom of the heme group in the hexagonal structure. This binding displaces the sulfur atom of Met l00, which forms the axial ligand in the triclinic and tetragonal structures.
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[[Category: Cereibacter sphaeroides]]
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[[Category: Large Structures]]
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==About this Structure==
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[[Category: Allen JP]]
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1CXC is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rhodobacter_sphaeroides Rhodobacter sphaeroides]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CXC OCA].
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[[Category: Axelrod HL]]
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[[Category: Chirino AJ]]
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==Reference==
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[[Category: Day MW]]
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Crystallization and X-ray structure determination of cytochrome c2 from Rhodobacter sphaeroides in three crystal forms., Axelrod HL, Feher G, Allen JP, Chirino AJ, Day MW, Hsu BT, Rees DC, Acta Crystallogr D Biol Crystallogr. 1994 Jul 1;50(Pt 4):596-602. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15299423 15299423]
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[[Category: Feher G]]
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[[Category: Rhodobacter sphaeroides]]
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[[Category: Hsu BT]]
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[[Category: Single protein]]
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[[Category: Rees DC]]
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[[Category: Allen, J P.]]
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[[Category: Axelrod, H L.]]
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[[Category: Chirino, A J.]]
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[[Category: Day, M W.]]
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[[Category: Feher, G.]]
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[[Category: Hsu, B T.]]
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[[Category: Rees, D C.]]
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[[Category: electron transport (cytochrome)]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:30:24 2008''
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Current revision

CRYSTALLIZATION AND X-RAY STRUCTURE DETERMINATION OF CYTOCHROME C2 FROM RHODOBACTER SPHAEROIDES IN THREE CRYSTAL FORMS

PDB ID 1cxc

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