1c51

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[[Image:1c51.png|left|200px]]
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==PHOTOSYNTHETIC REACTION CENTER AND CORE ANTENNA SYSTEM (TRIMERIC), ALPHA CARBON ONLY==
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<StructureSection load='1c51' size='340' side='right' caption='[[1c51]], [[Resolution|resolution]] 4.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1c51]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Synechococcus_elongatus Synechococcus elongatus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1C51 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1C51 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=UNK:UNKNOWN'>UNK</scene></td></tr>
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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=1c51 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1c51 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1c51 RCSB], [http://www.ebi.ac.uk/pdbsum/1c51 PDBsum]</span></td></tr>
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<table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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An improved electron density map of photosystem I (PSI) calculated at 4-A resolution yields a more detailed structural model of the stromal subunits PsaC, PsaD, and PsaE than previously reported. The NMR structure of the subunit PsaE of PSI from Synechococcus sp. PCC7002 (Falzone, C. J., Kao, Y.-H., Zhao, J., Bryant, D. A., and Lecomte, J. T. J. (1994) Biochemistry 33, 6052-6062) has been used as a model to interpret the region of the electron density map corresponding to this subunit. The spatial orientation with respect to other subunits is described as well as the possible interactions between the stromal subunits. A first model of PsaD consisting of a four-stranded beta-sheet and an alpha-helix is suggested, indicating that this subunit partly shields PsaC from the stromal side. In addition to the improvements on the stromal subunits, the structural model of the membrane-integral region of PSI is also extended. The current electron density map allows the identification of the N and C termini of the subunits PsaA and PsaB. The 11-transmembrane alpha-helices of these subunits can now be assigned uniquely to the hydrophobic segments identified by hydrophobicity analyses.
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{{STRUCTURE_1c51| PDB=1c51 | SCENE= }}
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Photosystem I, an improved model of the stromal subunits PsaC, PsaD, and PsaE.,Klukas O, Schubert WD, Jordan P, Krauss N, Fromme P, Witt HT, Saenger W J Biol Chem. 1999 Mar 12;274(11):7351-60. PMID:10066799<ref>PMID:10066799</ref>
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===PHOTOSYNTHETIC REACTION CENTER AND CORE ANTENNA SYSTEM (TRIMERIC), ALPHA CARBON ONLY===
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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_10066799}}
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==About this Structure==
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[[1c51]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Synechococcus_elongatus Synechococcus elongatus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1C51 OCA].
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==See Also==
==See Also==
*[[Photosystem I|Photosystem I]]
*[[Photosystem I|Photosystem I]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:010066799</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Synechococcus elongatus]]
[[Category: Synechococcus elongatus]]
[[Category: Fromme, P.]]
[[Category: Fromme, P.]]

Revision as of 17:10, 20 August 2014

PHOTOSYNTHETIC REACTION CENTER AND CORE ANTENNA SYSTEM (TRIMERIC), ALPHA CARBON ONLY

1c51, resolution 4.00Å

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