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2pps

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[[Image:2pps.gif|left|200px]]
[[Image:2pps.gif|left|200px]]
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{{Structure
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<!--
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|PDB= 2pps |SIZE=350|CAPTION= <scene name='initialview01'>2pps</scene>, resolution 4.0&Aring;
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The line below this paragraph, containing "STRUCTURE_2pps", creates the "Structure Box" on the page.
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|SITE= <scene name='pdbsite=ETS:The+Cofactors+Cla+2001+-+2006,+Pqn+2007+And+Fs4+2008+-+2+...'>ETS</scene>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=PQN:PHYLLOQUINONE'>PQN</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=UNK:UNKNOWN'>UNK</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY=
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|GENE=
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|DOMAIN=
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{{STRUCTURE_2pps| PDB=2pps | SCENE= }}
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2pps FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pps OCA], [http://www.ebi.ac.uk/pdbsum/2pps PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2pps RCSB]</span>
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}}
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'''PHOTOSYNTHETIC REACTION CENTER AND CORE ANTENNA SYSTEM (TRIMERIC), ALPHA CARBON ONLY'''
'''PHOTOSYNTHETIC REACTION CENTER AND CORE ANTENNA SYSTEM (TRIMERIC), ALPHA CARBON ONLY'''
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==About this Structure==
==About this Structure==
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2PPS is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Synechococcus_elongatus Synechococcus elongatus]. This structure supersedes the now removed PDB entry 1PPS. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PPS OCA].
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This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1pps 1pps]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PPS OCA].
==Reference==
==Reference==
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:[http://www.ncbi.nlm.nih.gov/pubmed/8901876 8901876]
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:[http://www.ncbi.nlm.nih.gov/pubmed/8901876 8901876]
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[[Category: Protein complex]]
 
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[[Category: Synechococcus elongatus]]
 
[[Category: Fromme, P.]]
[[Category: Fromme, P.]]
[[Category: Klukas, O.]]
[[Category: Klukas, O.]]
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[[Category: Schubert, W D.]]
[[Category: Schubert, W D.]]
[[Category: Witt, H T.]]
[[Category: Witt, H T.]]
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[[Category: core-antenna light-harvesting system]]
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[[Category: Core-antenna light-harvesting system]]
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[[Category: helix-bundle membrane protein]]
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[[Category: Helix-bundle membrane protein]]
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[[Category: oxygenic photosynthesis]]
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[[Category: Oxygenic photosynthesis]]
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[[Category: photosynthetic reaction center]]
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[[Category: Photosynthetic reaction center]]
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[[Category: thermophilic cyanobacterium]]
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[[Category: Thermophilic cyanobacterium]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 13:35:37 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:39:11 2008''
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Revision as of 10:35, 4 May 2008

Image:2pps.gif

Template:STRUCTURE 2pps

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


Overview

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 < 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.

About this Structure

This structure supersedes the now removed PDB entry 1pps. Full crystallographic information is available from OCA.

Reference

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 Page seeded by OCA on Sun May 4 13:35:37 2008

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