2pps
From Proteopedia
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[[Image:2pps.gif|left|200px]] | [[Image:2pps.gif|left|200px]] | ||
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| - | + | {{STRUCTURE_2pps| PDB=2pps | SCENE= }} | |
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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== | ||
| - | + | 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] | ||
| - | [[Category: Protein complex]] | ||
| - | [[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.]] | ||
| - | [[Category: | + | [[Category: Core-antenna light-harvesting system]] |
| - | [[Category: | + | [[Category: Helix-bundle membrane protein]] |
| - | [[Category: | + | [[Category: Oxygenic photosynthesis]] |
| - | [[Category: | + | [[Category: Photosynthetic reaction center]] |
| - | [[Category: | + | [[Category: Thermophilic cyanobacterium]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 13:35:37 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 10:35, 4 May 2008
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
