This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
2bnp
From Proteopedia
| Line 4: | Line 4: | ||
==Overview== | ==Overview== | ||
| - | In bright light the photosynthetic reaction center (RC) of Rhodobacter | + | In bright light the photosynthetic reaction center (RC) of Rhodobacter sphaeroides stabilizes the P(+)(870).Q(-)(A) charge-separated state and thereby minimizes the potentially harmful effects of light saturation. Using X-ray diffraction we report a conformational change that occurs within the cytoplasmic domain of this RC in response to prolonged illumination with bright light. Our observations suggest a novel structural mechanism for the regulation of electron transfer reactions in photosynthesis. |
==About this Structure== | ==About this Structure== | ||
| Line 13: | Line 13: | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Rhodobacter sphaeroides]] | [[Category: Rhodobacter sphaeroides]] | ||
| - | [[Category: Andreasson, L | + | [[Category: Andreasson, L E.]] |
[[Category: Andreasson, U.]] | [[Category: Andreasson, U.]] | ||
[[Category: Gourdon, P.]] | [[Category: Gourdon, P.]] | ||
| Line 42: | Line 42: | ||
[[Category: transport]] | [[Category: transport]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:39:42 2008'' |
Revision as of 14:39, 21 February 2008
|
LIPIDIC CUBIC PHASE GROWN REACTION CENTRE FROM RHODOBACTER SPHAEROIDES, GROUND STATE
Overview
In bright light the photosynthetic reaction center (RC) of Rhodobacter sphaeroides stabilizes the P(+)(870).Q(-)(A) charge-separated state and thereby minimizes the potentially harmful effects of light saturation. Using X-ray diffraction we report a conformational change that occurs within the cytoplasmic domain of this RC in response to prolonged illumination with bright light. Our observations suggest a novel structural mechanism for the regulation of electron transfer reactions in photosynthesis.
About this Structure
2BNP is a Protein complex structure of sequences from Rhodobacter sphaeroides with , , , , , and as ligands. Known structural/functional Site: . Full crystallographic information is available from OCA.
Reference
Conformational regulation of charge recombination reactions in a photosynthetic bacterial reaction center., Katona G, Snijder A, Gourdon P, Andreasson U, Hansson O, Andreasson LE, Neutze R, Nat Struct Mol Biol. 2005 Jul;12(7):630-1. Epub 2005 Jun 5. PMID:15937492
Page seeded by OCA on Thu Feb 21 16:39:42 2008
Categories: Protein complex | Rhodobacter sphaeroides | Andreasson, L E. | Andreasson, U. | Gourdon, P. | Hansson, O. | Katona, G. | Neutze, R. | Snijder, A. | BCL | BH1 | CL | FE2 | MST | PO4 | U10 | Bacterial photosynthesis | Bacteriochlorophyll | Chlorophyll | Chromophore | Electron transport | Ground state | Intermediate trapping | Iron | Lipidic cubic phase | Magnesium | Membrane protein | Reaction centre | Transmembrane | Transport
