Supramolecular organization of phycobiliproteins in the chlorophyll d-containing cyanobacterium Acaryochloris marina
Chen, Min, Floetenmeyer, Matthias and Bibby, Thomas S. (2009) Supramolecular organization of phycobiliproteins in the chlorophyll d-containing cyanobacterium Acaryochloris marina. FEBS Letters, 583, (15), 2535-2539. (doi:10.1016/j.febslet.2009.07.012).
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Description/Abstract
Here we report the high-resolution detail of the organization of phycobiliprotein structures associated with photosynthetic membranes of the chlorophyll d-containing cyanobacterium Acaryochloris marina. Cryo-electron transmission-microscopy on native cell sections show extensive patches of near-crystalline phycobiliprotein rods that are associated with the stromal side of photosynthetic membranes. This supramolecular photosynthetic structure represents a novel mechanism of organizing the photosynthetic light-harvesting machinery. In addition, the specific location of phycobiliprotein patches suggests a physical separation of photosystem I and photosystem II reaction centres. Based on this finding and the known photosystem’s structure in Acaryochloris, we discuss possible membrane arrangements of photosynthetic membrane complexes in this species.
| Item Type: | Article |
|---|---|
| ISSNs: | 0014-5793 (print) |
| Related URLs: | |
| Keywords: | Phycobiliprotein, Cryo-electron microscopy, Membrane organization, Acaryochloris marina |
| Subjects: | Q Science > QR Microbiology |
| Divisions: | University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES) |
| Item ID: | 67022 |
| Date Deposited: | 30 Jul 2009 |
| Last Modified: | 01 Jun 2011 02:54 |
| Contributors: | Chen, Min (Author) Floetenmeyer, Matthias (Author) Bibby, Thomas S. (Author) |
| Date: | 6 August 2009 |
| Status: | Published |
| Contact Email Address: | tsb@noc.soton.ac.uk |
| URI: | http://eprints.soton.ac.uk/id/eprint/67022 |
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