1b8d

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[[Image:1b8d.png|left|200px]]
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==CRYSTAL STRUCTURE OF A PHYCOUROBILIN-CONTAINING PHYCOERYTHRIN==
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<StructureSection load='1b8d' size='340' side='right' caption='[[1b8d]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1b8d]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Griffithsia_monilis Griffithsia monilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1B8D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1B8D FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PEB:PHYCOERYTHROBILIN'>PEB</scene>, <scene name='pdbligand=PUB:PHYCOUROBILIN'>PUB</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MEN:N-METHYL+ASPARAGINE'>MEN</scene>, <scene name='pdbligand=UNK:UNKNOWN'>UNK</scene></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1b8d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1b8d OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1b8d RCSB], [http://www.ebi.ac.uk/pdbsum/1b8d PDBsum]</span></td></tr>
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<table>
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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/b8/1b8d_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/chain_selection.php?pdb_ID=2ata 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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The structure of R-phycoerythrin (R-PE) from the red alga Griffithsia monilis was solved at 1.90-A resolution by molecular replacement, using the atomic coordinates of cyanobacterial phycocyanin from Fremyella diplosiphon as a model. The crystallographic R factor for the final model is 17.5% (Rfree 22.7%) for reflections in the range 100-1.90 A. The model consists of an (alphabeta)2 dimer with an internal noncrystallographic dyad and a fragment of the gamma-polypeptide. The alpha-polypeptide (164 amino acid residues) has two covalently bound phycoerythrobilins at positions alpha82 and alpha139. The beta-polypeptide (177 residues) has two phycoerythrobilins bound to residues beta82 and beta158 and one phycourobilin covalently attached to rings A and D at residues beta50 and beta61, respectively. The electron density of the gamma-polypeptide is mostly averaged out by threefold crystallographic symmetry, but a dipeptide (Gly-Tyr) and one single Tyr could be modeled. These two tyrosine residues of the gamma-polypeptide are in close proximity to the phycoerythrobilins at position beta82 of two symmetry-related beta-polypeptides and are related by the same noncrystallographic dyad as the (alphabeta)2 dimer. Possible energy transfer pathways are discussed briefly.
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{{STRUCTURE_1b8d| PDB=1b8d | SCENE= }}
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Crystal structure of a phycourobilin-containing phycoerythrin at 1.90-A resolution.,Ritter S, Hiller RG, Wrench PM, Welte W, Diederichs K J Struct Biol. 1999 Jun 15;126(2):86-97. PMID:10388620<ref>PMID:10388620</ref>
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===CRYSTAL STRUCTURE OF A PHYCOUROBILIN-CONTAINING PHYCOERYTHRIN===
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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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{{ABSTRACT_PUBMED_10388620}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1b8d]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Griffithsia_monilis Griffithsia monilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1B8D OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:010388620</ref><ref group="xtra">PMID:011134927</ref><references group="xtra"/>
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[[Category: Griffithsia monilis]]
[[Category: Griffithsia monilis]]
[[Category: Diederichs, K.]]
[[Category: Diederichs, K.]]

Revision as of 03:23, 7 August 2014

CRYSTAL STRUCTURE OF A PHYCOUROBILIN-CONTAINING PHYCOERYTHRIN

1b8d, resolution 1.90Å

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