View source for 2x21


==Structure of Peridinin-Chlorophyll-Protein reconstituted with BChl-a==
<StructureSection load='2x21' size='340' side='right'caption='[[2x21]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2x21]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Amphidinium_carterae Amphidinium carterae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2X21 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2X21 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.75&#8491;</td></tr>
<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=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=DGD:DIGALACTOSYL+DIACYL+GLYCEROL+(DGDG)'>DGD</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=PID:PERIDININ'>PID</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2x21 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2x21 OCA], [https://pdbe.org/2x21 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2x21 RCSB], [https://www.ebi.ac.uk/pdbsum/2x21 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2x21 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PCP1_AMPCA PCP1_AMPCA] Water-soluble antenna for capture of solar energy in the blue-green range. Peridinin is an asymmetric carotenoid.
== 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/x2/2x21_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=2x21 ConSurf].
<div style="clear:both"></div>
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== Publication Abstract from PubMed ==
The peridinin-chlorophyll a-protein (PCP) from dinoflagellates is a soluble light harvesting antenna which gathers incoming photons mainly by the carotenoid peridinin. In PCPs reconstituted with different chlorophylls, the peridinin to chlorophyll energy transfer rates are well predicted by a Forster-like theory, but only if the pigment arrangements are identical in all PCPs. We have determined the X-ray structures of PCPs reconstituted with Chlorophyll-b (Chl-b), Chlorophyll-d (Chl-d) and Bacteriochlorophyll-a (BChl-a) to resolutions&lt;or=2A. In all three cases the pigment arrangements are essentially the same as in native PCP. Hydrogen bonding is not responsible for preferential incorporation of "non-native" chlorophylls over Chl-a.

X-ray structures of the peridinin-chlorophyll-protein reconstituted with different chlorophylls.,Schulte T, Hiller RG, Hofmann E FEBS Lett. 2010 Mar 5;584(5):973-8. Epub 2010 Jan 25. PMID:20102711<ref>PMID:20102711</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 2x21" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Amphidinium carterae]]
[[Category: Large Structures]]
[[Category: Hiller RG]]
[[Category: Hofmann E]]
[[Category: Schulte T]]