2wsc

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{{Seed}}
 
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[[Image:2wsc.png|left|200px]]
 
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==Improved Model of Plant Photosystem I==
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The line below this paragraph, containing "STRUCTURE_2wsc", creates the "Structure Box" on the page.
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<StructureSection load='2wsc' size='340' side='right'caption='[[2wsc]], [[Resolution|resolution]] 3.30&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'>[[2wsc]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana], [https://en.wikipedia.org/wiki/Glycine_max Glycine max], [https://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum] and [https://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2WSC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2WSC 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]] 3.3&#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=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=FRU:FRUCTOSE'>FRU</scene>, <scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=LMG:1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE'>LMG</scene>, <scene name='pdbligand=LMU:DODECYL-ALPHA-D-MALTOSIDE'>LMU</scene>, <scene name='pdbligand=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=PRD_900003:sucrose'>PRD_900003</scene></td></tr>
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{{STRUCTURE_2wsc| PDB=2wsc | 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=2wsc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2wsc OCA], [https://pdbe.org/2wsc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2wsc RCSB], [https://www.ebi.ac.uk/pdbsum/2wsc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2wsc ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CAB6_ARATH CAB6_ARATH] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.
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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/ws/2wsc_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2wsc 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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Photosystem I functions as a sunlight energy converter, catalyzing one of the initial steps in driving oxygenic photosynthesis in cyanobacteria, algae, and higher plants. Functionally, Photosystem I captures sunlight and transfers the excitation energy through an intricate and precisely organized antenna system, consisting of a pigment network, to the center of the molecule, where it is used in the transmembrane electron transfer reaction. Our current understanding of the sophisticated mechanisms underlying these processes has profited greatly from elucidation of the crystal structures of the Photosystem I complex. In this report, we describe the developments that ultimately led to enhanced structural information of plant Photosystem I. In addition, we report an improved crystallographic model at 3.3-A resolution, which allows analysis of the structure in more detail. An improved electron density map yielded identification and tracing of subunit PsaK. The location of an additional ten beta-carotenes as well as five chlorophylls and several loop regions, which were previously uninterpretable, are now modeled. This represents the most complete plant Photosystem I structure obtained thus far, revealing the locations of and interactions among 17 protein subunits and 193 non-covalently bound photochemical cofactors. Using the new crystal structure, we examine the network of contacts among the protein subunits from the structural perspective, which provide the basis for elucidating the functional organization of the complex.
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===IMPROVED MODEL OF PLANT PHOTOSYSTEM I===
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Structure determination and improved model of plant photosystem I.,Amunts A, Toporik H, Borovikova A, Nelson N J Biol Chem. 2010 Jan 29;285(5):3478-86. Epub 2009 Nov 18. PMID:19923216<ref>PMID:19923216</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 2wsc" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_19923216}}, 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 19923216 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_19923216}}
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__TOC__
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</StructureSection>
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==About this Structure==
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2WSC is a 18 chains structure with sequences from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana], [http://en.wikipedia.org/wiki/Glycine_max Glycine max], [http://en.wikipedia.org/wiki/Hordeum_vulgare Hordeum vulgare], [http://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris], [http://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum] and [http://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2WSC OCA].
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==Reference==
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<ref group="xtra">PMID:19923216</ref><references group="xtra"/>
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[[Category: Arabidopsis thaliana]]
[[Category: Arabidopsis thaliana]]
[[Category: Glycine max]]
[[Category: Glycine max]]
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[[Category: Hordeum vulgare]]
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[[Category: Large Structures]]
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[[Category: Phaseolus vulgaris]]
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[[Category: Pisum sativum]]
[[Category: Pisum sativum]]
[[Category: Spinacia oleracea]]
[[Category: Spinacia oleracea]]
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[[Category: Amunts, A.]]
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[[Category: Amunts A]]
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[[Category: Borovikov, A.]]
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[[Category: Borovikov A]]
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[[Category: Nelson, N.]]
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[[Category: Nelson N]]
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[[Category: Toporik, H.]]
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[[Category: Toporik H]]
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[[Category: Electron transfer]]
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[[Category: Large complex]]
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[[Category: Membrane protein]]
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[[Category: Photosynthesis]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Feb 3 09:00:17 2010''
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Current revision

Improved Model of Plant Photosystem I

PDB ID 2wsc

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