1lia

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[[Image:1lia.png|left|200px]]
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==CRYSTAL STRUCTURE OF R-PHYCOERYTHRIN FROM POLYSIPHONIA AT 2.8 A RESOLUTION==
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<StructureSection load='1lia' size='340' side='right' caption='[[1lia]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1lia]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Polysiphonia_urceolata Polysiphonia urceolata]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LIA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LIA FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene>, <scene name='pdbligand=PUB:PHYCOUROBILIN'>PUB</scene><br>
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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=1lia FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lia OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1lia RCSB], [http://www.ebi.ac.uk/pdbsum/1lia 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/li/1lia_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 Polysiphonia urceolata was determined at 2.8 A resolution. The crystals belong to space group R3 with unit cell dimensions of a = b = 189.8 A, c = 60.1 A. The subunit composition of R-PE is (alpha 2 beta 2)3 gamma. The three-dimensional structure of R-PE was solved by the multiple isomorphous replacement method. After several cycles of model building and refinement, the crystallographic R-factor of the final model is 18.0% with data from 10.0 to 2.8 A resolution. The four phycoerythrobilin chromophores alpha 84, alpha 140a, beta 84 and beta 155 in an (alpha beta) unit are each covalently bound to a cysteine residue through ring A. The phycourobilin chromophore is bound to cysteine beta 50 by ring A and bound to cysteine beta 61 by ring D. The ring A and ring D of phycourobilin deviate from the conjugate plane formed by ring B and ring C and the four rings form a boat-shaped structure. R-PE contains a 34 kDa gamma subunit that is assumed to lie in the central channel of the molecular disc (alpha 2 beta 2)3. The energy transfer and relationship between cysteine residues and chromophores are discussed.
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{{STRUCTURE_1lia| PDB=1lia | SCENE= }}
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Crystal structure of R-phycoerythrin from Polysiphonia urceolata at 2.8 A resolution.,Chang WR, Jiang T, Wan ZL, Zhang JP, Yang ZX, Liang DC J Mol Biol. 1996 Oct 11;262(5):721-31. PMID:8876649<ref>PMID:8876649</ref>
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===CRYSTAL STRUCTURE OF R-PHYCOERYTHRIN FROM POLYSIPHONIA AT 2.8 A RESOLUTION===
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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_8876649}}
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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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[[1lia]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Polysiphonia_urceolata Polysiphonia urceolata]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LIA OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:008876649</ref><ref group="xtra">PMID:011134927</ref><references group="xtra"/>
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[[Category: Polysiphonia urceolata]]
[[Category: Polysiphonia urceolata]]
[[Category: Chang, W R.]]
[[Category: Chang, W R.]]

Revision as of 13:33, 28 September 2014

CRYSTAL STRUCTURE OF R-PHYCOERYTHRIN FROM POLYSIPHONIA AT 2.8 A RESOLUTION

1lia, resolution 2.80Å

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