2x5v

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80 microsecond laue diffraction snapshot from crystals of a photosynthetic reaction centre 3 millisecond following photoactivation.

Structural highlights

2x5v is a 4 chain structure with sequence from Blastochloris viridis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 3Å
Ligands:BPB, FE2, FME, HEC, MQ7
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RCEL_BLAVI The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Photosynthetic reaction centers convert the energy content of light into a transmembrane potential difference and so provide the major pathway for energy input into the biosphere. We applied time-resolved Laue diffraction to study light-induced conformational changes in the photosynthetic reaction center complex of Blastochloris viridis. The side chain of TyrL162, which lies adjacent to the special pair of bacteriochlorophyll molecules that are photooxidized in the primary light conversion event of photosynthesis, was observed to move 1.3 angstroms closer to the special pair after photoactivation. Free energy calculations suggest that this movement results from the deprotonation of this conserved tyrosine residue and provides a mechanism for stabilizing the primary charge separation reactions of photosynthesis.

Light-induced structural changes in a photosynthetic reaction center caught by Laue diffraction.,Wohri AB, Katona G, Johansson LC, Fritz E, Malmerberg E, Andersson M, Vincent J, Eklund M, Cammarata M, Wulff M, Davidsson J, Groenhof G, Neutze R Science. 2010 Apr 30;328(5978):630-3. PMID:20431017[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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Citations
13 reviews cite this structure
Overcoming barriers to membrane protein structure determination.
Bill et al. (2011)
12 more
35 other articles
No citations found

See Also

References

  1. ↑ Wohri AB, Katona G, Johansson LC, Fritz E, Malmerberg E, Andersson M, Vincent J, Eklund M, Cammarata M, Wulff M, Davidsson J, Groenhof G, Neutze R. Light-induced structural changes in a photosynthetic reaction center caught by Laue diffraction. Science. 2010 Apr 30;328(5978):630-3. PMID:20431017 doi:328/5978/630

Contents


PDB ID 2x5v

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