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1cyi

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[[Image:1cyi.jpg|left|200px]]
 
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==CYTOCHROME C6==
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The line below this paragraph, containing "STRUCTURE_1cyi", creates the "Structure Box" on the page.
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<StructureSection load='1cyi' size='340' side='right'caption='[[1cyi]], [[Resolution|resolution]] 1.90&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'>[[1cyi]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Chlamydomonas_reinhardtii Chlamydomonas reinhardtii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CYI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CYI 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]] 1.9&#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=CD:CADMIUM+ION'>CD</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</scene></td></tr>
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{{STRUCTURE_1cyi| PDB=1cyi | 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=1cyi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cyi OCA], [https://pdbe.org/1cyi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cyi RCSB], [https://www.ebi.ac.uk/pdbsum/1cyi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cyi ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CYC6_CHLRE CYC6_CHLRE] Functions as an electron carrier between membrane-bound cytochrome b6-f and photosystem I in oxygenic photosynthesis.
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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/cy/1cyi_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=1cyi ConSurf].
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<div style="clear:both"></div>
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'''CYTOCHROME C6'''
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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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The molecular structure of cytochrome c6 from the green alga Chlamydomonas reinhardtii has been determined from two crystal forms and refined to 1.9 A resolution. The two crystal forms are likely the result of different levels of post-translational modification of the protein. This is the first report of a high-resolution structure of a chloroplast-derived class I c-type cytochrome. The overall fold is similar to that of other class I c-type cytochromes, consisting of a series of alpha-helices and turns that envelop the heme prosthetic group. There is also a short two-stranded anti-parallel beta-sheet in the vicinity of the methionine axial ligand to the heme; this region of the molecule is formed by the most highly conserved residues in c6-type cytochromes. Although class I c-type cytochromes are assumed to function as monomers, both crystal forms of cytochrome c6 exhibit oligomerization about the heme crevice that is, in part, mediated by the short anti-parallel beta-sheet. The functional significance of this oligomerization is supported by the appearance of similar interfaces in other electron transfer couples, HPLC and light-scattering data, and is furthermore consistent with kinetic data on electron transfer reactions of c6-type cytochromes.
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==About this Structure==
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1CYI is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Chlamydomonas_reinhardtii Chlamydomonas reinhardtii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CYI OCA].
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==Reference==
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The structure of chloroplast cytochrome c6 at 1.9 A resolution: evidence for functional oligomerization., Kerfeld CA, Anwar HP, Interrante R, Merchant S, Yeates TO, J Mol Biol. 1995 Jul 28;250(5):627-47. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7623381 7623381]
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[[Category: Chlamydomonas reinhardtii]]
[[Category: Chlamydomonas reinhardtii]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Kerfeld, C A.]]
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[[Category: Kerfeld CA]]
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[[Category: Yeates, T O.]]
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[[Category: Yeates TO]]
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[[Category: Chlamydomona]]
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[[Category: Photosynthesis]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:14:51 2008''
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Current revision

CYTOCHROME C6

PDB ID 1cyi

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