View source for 1vrn

==PHOTOSYNTHETIC REACTION CENTER BLASTOCHLORIS VIRIDIS (ATCC)==
<StructureSection load='1vrn' size='340' side='right' caption='[[1vrn]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1vrn]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Blastochloris_viridis Blastochloris viridis]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1txw 1txw]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VRN OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1VRN FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCB:BACTERIOCHLOROPHYLL+B'>BCB</scene>, <scene name='pdbligand=BPB:BACTERIOPHEOPHYTIN+B'>BPB</scene>, <scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=LDA:LAURYL+DIMETHYLAMINE-N-OXIDE'>LDA</scene>, <scene name='pdbligand=MQ9:MENAQUINONE-9'>MQ9</scene>, <scene name='pdbligand=NS5:15-CIS-1,2-DIHYDRONEUROSPORENE'>NS5</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=UQ7:UBIQUINONE-7'>UQ7</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=FME:N-FORMYLMETHIONINE'>FME</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1r2c|1r2c]]</td></tr>
<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=1vrn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vrn OCA], [http://pdbe.org/1vrn PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1vrn RCSB], [http://www.ebi.ac.uk/pdbsum/1vrn PDBsum]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/RCEM_RHOVI RCEM_RHOVI]] The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis. [[http://www.uniprot.org/uniprot/CYCR_RHOVI CYCR_RHOVI]] The reaction center of purple bacteria contains a tightly bound cytochrome molecule which re-reduces the photo oxidized primary electron donor. [[http://www.uniprot.org/uniprot/RCEL_RHOVI RCEL_RHOVI]] The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis. [[http://www.uniprot.org/uniprot/RCEH_RHOVI RCEH_RHOVI]] The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis. 
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/vr/1vrn_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The structure of the Blastochloris viridis photosynthetic reaction center has been determined at 100 K by flash-freezing crystals. A data set to 2.2 A resolution provides a well determined model of the wild-type protein. Of particular interest are the position, occupancy and heterogeneity of the Q(B)-binding site. Data were also collected from a crystal frozen immediately after illumination. The data support predominant binding of Q(B) in the proximal position in both the neutral and charge-separated states.

Cryogenic structure of the photosynthetic reaction center of Blastochloris viridis in the light and dark.,Baxter RH, Seagle BL, Ponomarenko N, Norris JR Acta Crystallogr D Biol Crystallogr. 2005 May;61(Pt 5):605-12. Epub 2005, Apr 20. PMID:15858271<ref>PMID:15858271</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1vrn" style="background-color:#fffaf0;"></div>

==See Also==
*[[Cytochrome c|Cytochrome c]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Blastochloris viridis]]
[[Category: Baxter, R H.G]]
[[Category: Norris, J R]]
[[Category: Seagle, B L]]
[[Category: Integral membrane protein]]
[[Category: Photosynthesis]]
[[Category: Ubiquinone]]