2pps: Difference between revisions

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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=2pps FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pps OCA], [https://pdbe.org/2pps PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2pps RCSB], [https://www.ebi.ac.uk/pdbsum/2pps PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2pps ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2pps FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pps OCA], [https://pdbe.org/2pps PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2pps RCSB], [https://www.ebi.ac.uk/pdbsum/2pps PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2pps ProSAT]</span></td></tr>
</table>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The 4 A X-ray structure model of trimeric photosystem I of the cyanobacterium Synechococcus elongatus reveals 31 transmembrane, nine surface and three stromal alpha-helices per monomer, assigned to the 11 protein subunits: PsaA and PsaB are related by a pseudo two-fold axis normal to the membrane plane, along which the electron transfer pigments are arranged. 65 antenna chlorophyll a (Chl a) molecules separated by &lt; or = 16 A form an oval, clustered net continuous with the electron transfer chain through the second and third Chl a pairs of the electron transfer system. This suggests a dual role for these Chl a both in excitation energy and electron transfer. The architecture of the protein core indicates quinone and iron-sulphur type reaction centres to have a common ancestor.
Photosystem I at 4 A resolution represents the first structural model of a joint photosynthetic reaction centre and core antenna system.,Krauss N, Schubert WD, Klukas O, Fromme P, Witt HT, Saenger W Nat Struct Biol. 1996 Nov;3(11):965-73. PMID:8901876<ref>PMID:8901876</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2pps" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Photosystem I 3D structures|Photosystem I 3D structures]]
*[[Photosystem I 3D structures|Photosystem I 3D structures]]
== References ==
<references/>
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</StructureSection>
</StructureSection>

Revision as of 09:11, 21 February 2024

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

2pps, resolution 4.00Å

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