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1f99

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[[Image:1f99.png|left|200px]]
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==CRYSTAL STRUCTURE OF R-PHYCOCYANIN FROM POLYSIPHONIA AT 2.4 A RESOLUTION==
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<StructureSection load='1f99' size='340' side='right' caption='[[1f99]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1f99]] is a 6 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=1F99 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1F99 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BLA:BILIVERDINE+IX+ALPHA'>BLA</scene>, <scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene>, <scene name='pdbligand=PEB:PHYCOERYTHROBILIN'>PEB</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=1f99 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f99 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1f99 RCSB], [http://www.ebi.ac.uk/pdbsum/1f99 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/f9/1f99_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 crystal structure of R-phycocyanin from Polysiphonia urceolata (R-PC-PU) at 2.4 A is reported. The R-PC-PU crystal belongs to space group P4(3)2(1)2 with cell parameters a = 135.1 A, c = 210.0 A, and alpha = beta = gamma = 90 degrees. The structure was determined by molecular replacement. The crystallographic R-factor of the refined model is 0.189 (R(free) = 0.239). Comparison of the microenvironment of chromophore beta 155 in R-PC-PU and in C-PC from Fremyolla diphosiphon (C-PC-FD) reveals that their spectral differences may be caused by their different alpha 28 residues. In the R-PC-PU crystal structure, two (alpha beta)(3) trimers assemble face to face to form a hexamer, and two such hexamers assemble in two novel side-to-side arrangements. Possible models for the energy transfer from phycoerythrin to phycocyanin and from phycocyanin to allophycocyanin are proposed based on several phycobiliprotein crystal structures.
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{{STRUCTURE_1f99| PDB=1f99 | SCENE= }}
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Crystal structure of R-phycocyanin and possible energy transfer pathways in the phycobilisome.,Jiang T, Zhang JP, Chang WR, Liang DC Biophys J. 2001 Aug;81(2):1171-9. PMID:11463658<ref>PMID:11463658</ref>
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===CRYSTAL STRUCTURE OF R-PHYCOCYANIN FROM POLYSIPHONIA AT 2.4 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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== References ==
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==About this Structure==
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<references/>
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[[1f99]] is a 6 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=1F99 OCA].
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__TOC__
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:011463658</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 14:16, 28 September 2014

CRYSTAL STRUCTURE OF R-PHYCOCYANIN FROM POLYSIPHONIA AT 2.4 A RESOLUTION

1f99, resolution 2.40Å

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