1gxi

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[[Image:1gxi.png|left|200px]]
 
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==PsaE Subunit of the Photosystem I of the Cyanobacterium Synechocystis sp. PCC 6803==
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The line below this paragraph, containing "STRUCTURE_1gxi", creates the "Structure Box" on the page.
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<StructureSection load='1gxi' size='340' side='right'caption='[[1gxi]]' 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'>[[1gxi]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Synechocystis_sp._PCC_6803 Synechocystis sp. PCC 6803]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GXI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GXI 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">Solution NMR</td></tr>
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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=1gxi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gxi OCA], [https://pdbe.org/1gxi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gxi RCSB], [https://www.ebi.ac.uk/pdbsum/1gxi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gxi ProSAT]</span></td></tr>
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{{STRUCTURE_1gxi| PDB=1gxi | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PSAE_SYNY3 PSAE_SYNY3] Stabilizes the interaction between PsaC and the PSI core, assists the docking of the ferredoxin to PSI and interacts with ferredoxin-NADP oxidoreductase.[HAMAP-Rule:MF_00613]
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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/gx/1gxi_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=1gxi 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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PsaE is a small peripheral subunit of photosystem I (PSI) that is very accessible to the surrounding medium. It plays an essential role in optimizing the interactions with the soluble electron acceptors of PSI, ferredoxin and flavodoxin. The solution structure of PsaE from the cyanobacterium Synechocystis sp. PCC 6803 has been investigated by NMR with a special emphasis on its protein dynamic properties. PsaE is characterized by a well-defined central core that consists of a five-stranded beta-sheet (+1, +1, +1, -4x). Four loops (designated the A-B, B-C, C-D, and D-E loops) connect these beta-strands, the overall resulting structure being that of an SH3-like domain. As compared to previously determined PsaE structures, conformational differences are observed in the first three loops. The flexibility of the loops was investigated using (15)N relaxation experiments. This flexibility is small in amplitude for the A-B and B-C loops, but is large for the C-D loop, particularly in the region corresponding to the missing sequence of Nostoc sp. PCC 8009. The plasticity of the connecting loops in the free subunit is compared to that when bound to the PSI and discussed in relation to the insertion process and the function(s) of PsaE.
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===PSAE SUB-UNIT OF THE PHOTOSYSTEM I OF THE CYANOBACTERIUM SYNECHOCYSTIS SP. PCC 6803===
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Solution NMR structure and backbone dynamics of the PsaE subunit of photosystem I from Synechocystis sp. PCC 6803.,Barth P, Savarin P, Gilquin B, Lagoutte B, Ochsenbein F Biochemistry. 2002 Nov 26;41(47):13902-14. PMID:12437347<ref>PMID:12437347</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 1gxi" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_12437347}}, adds the Publication Abstract to the page
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*[[Photosystem I 3D structures|Photosystem I 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 12437347 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_12437347}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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[[1gxi]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Synechocystis_sp. Synechocystis sp.]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GXI OCA].
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[[Category: Synechocystis sp. PCC 6803]]
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[[Category: Barth P]]
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==Reference==
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[[Category: Gilquin B]]
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<ref group="xtra">PMID:12437347</ref><ref group="xtra">PMID:10702267</ref><ref group="xtra">PMID:10521281</ref><references group="xtra"/>
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[[Category: Lagoutte B]]
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[[Category: Synechocystis sp.]]
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[[Category: Ochsenbein F]]
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[[Category: Barth, P.]]
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[[Category: Savarin P]]
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[[Category: Gilquin, B.]]
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[[Category: Lagoutte, B.]]
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[[Category: Ochsenbein, F.]]
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[[Category: Savarin, P.]]
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[[Category: Photosynthesis]]
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[[Category: Photosystem i]]
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[[Category: Psae sub-unit]]
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[[Category: Thylakoid]]
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Current revision

PsaE Subunit of the Photosystem I of the Cyanobacterium Synechocystis sp. PCC 6803

PDB ID 1gxi

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