2X5U
80 microsecond Laue diffraction snapshot from crystals of a photosynthetic reaction centre without illumination.
Summary for 2X5U
| Entry DOI | 10.2210/pdb2x5u/pdb |
| Related | 1DXR 1PRC 1R2C 1VRN 2JBL 2PRC 2WJM 2WJN 2X5V 3PRC 5PRC 6PRC 7PRC |
| Descriptor | PHOTOSYNTHETIC REACTION CENTER CYTOCHROME C SUBUNIT, REACTION CENTER PROTEIN H CHAIN, REACTION CENTER PROTEIN L CHAIN, ... (9 entities in total) |
| Functional Keywords | lipidic-sponge phase, photosynthesis, electron transport, cell membrane, metal-binding, transmembrane, formylation, lipoprotein, lipids, transport |
| Biological source | BLASTOCHLORIS VIRIDIS More |
| Total number of polymer chains | 4 |
| Total formula weight | 141263.14 |
| Authors | Wohri, A.B.,Katona, G.,Johansson, L.C.,Fritz, E.,Malmerberg, E.,Andersson, M.,Vincent, J.,Eklund, M.,Cammarata, M.,Wulff, M.,Davidsson, J.,Groenhof, G.,Neutze, R. (deposition date: 2010-02-10, release date: 2010-05-12, Last modification date: 2023-12-20) |
| Primary citation | Wohri, A.B.,Katona, G.,Johansson, L.C.,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, 328:630-633, 2010 Cited by PubMed Abstract: 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. PubMed: 20431017DOI: 10.1126/science.1186159 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (3 Å) |
Structure validation
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