1ha7

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[[Image:1ha7.png|left|200px]]
 
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==STRUCTURE OF A LIGHT-HARVESTING PHYCOBILIPROTEIN, C-PHYCOCYANIN FROM SPIRULINA PLATENSIS AT 2.2A RESOLUTION==
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The line below this paragraph, containing "STRUCTURE_1ha7", creates the "Structure Box" on the page.
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<StructureSection load='1ha7' size='340' side='right'caption='[[1ha7]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1ha7]] is a 24 chain structure with sequence from [https://en.wikipedia.org/wiki/Arthrospira_platensis Arthrospira platensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HA7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HA7 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene>, <scene name='pdbligand=MEN:N-METHYL+ASPARAGINE'>MEN</scene></td></tr>
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{{STRUCTURE_1ha7| PDB=1ha7 | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ha7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ha7 OCA], [https://pdbe.org/1ha7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ha7 RCSB], [https://www.ebi.ac.uk/pdbsum/1ha7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ha7 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PHCB_ARTPT PHCB_ARTPT] Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex.
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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/ha/1ha7_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/main_output.php?pdb_ID=1ha7 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 C-phycocyanin, a light-harvesting phycobiliprotein from cyanobacteria (blue-green algae) Spirulina platensis has been solved by molecular replacement technique. The crystals belong to space group P2(1) with cell parameters a = 107.20, b = 115.40, c = 183.04 A; beta = 90.2 degrees. The structure has been refined to a crystallographic R factor of 19.2% (R(free) = 23.9%) using the X-ray diffraction data extending up to 2.2 A resolution. The asymmetric unit of the crystal cell consists of two (alphabeta)6-hexamers, each hexamer being the functional unit in the native antenna rod of cyanobacteria. The molecular structure resembles that of other reported C-phycocyanins. However, the unique form of aggregation of two (alphabeta)6-hexamers in the crystal asymmetric unit, suggests additional pathways of energy transfer in lateral direction between the adjacent hexamers involving beta155 phycocyanobilin chromophores.
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===STRUCTURE OF A LIGHT-HARVESTING PHYCOBILIPROTEIN, C-PHYCOCYANIN FROM SPIRULINA PLATENSIS AT 2.2A RESOLUTION===
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Crystal structure of a light-harvesting protein C-phycocyanin from Spirulina platensis.,Padyana AK, Bhat VB, Madyastha KM, Rajashankar KR, Ramakumar S Biochem Biophys Res Commun. 2001 Apr 13;282(4):893-8. PMID:11352634<ref>PMID:11352634</ref>
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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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<div class="pdbe-citations 1ha7" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_11352634}}, adds the Publication Abstract to the page
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*[[Phycocyanin|Phycocyanin]]
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(as it appears on PubMed at http://www.pubmed.gov), where 11352634 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_11352634}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[1ha7]] is a 24 chain structure with sequence from [http://en.wikipedia.org/wiki/Arthrospira_platensis Arthrospira platensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HA7 OCA].
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==Reference==
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<ref group="xtra">PMID:11352634</ref><ref group="xtra">PMID:10354419</ref><ref group="xtra">PMID:1899708</ref><references group="xtra"/>
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[[Category: Arthrospira platensis]]
[[Category: Arthrospira platensis]]
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[[Category: Padyana, A K.]]
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[[Category: Large Structures]]
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[[Category: Rajashankar, K R.]]
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[[Category: Padyana AK]]
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[[Category: Ramakumar, S.]]
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[[Category: Rajashankar KR]]
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[[Category: Chromophore]]
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[[Category: Ramakumar S]]
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[[Category: Cyanobacteria]]
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[[Category: Light-harvesting protein]]
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[[Category: Photosynthesis]]
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[[Category: Phycocyanobilin]]
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[[Category: Pigment protein]]
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Current revision

STRUCTURE OF A LIGHT-HARVESTING PHYCOBILIPROTEIN, C-PHYCOCYANIN FROM SPIRULINA PLATENSIS AT 2.2A RESOLUTION

PDB ID 1ha7

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