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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), pp. 2535-2539. (doi:10.1016/j.febslet.2009.07.012).

Record type: Article

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.

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Published date: 6 August 2009
Keywords: Phycobiliprotein, Cryo-electron microscopy, Membrane organization, Acaryochloris marina

Identifiers

Local EPrints ID: 67022
URI: http://eprints.soton.ac.uk/id/eprint/67022
ISSN: 0014-5793
PURE UUID: dfc9dfaf-83ef-49d3-b31e-08927384cf25

Catalogue record

Date deposited: 30 Jul 2009
Last modified: 19 Jul 2017 00:21

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Contributors

Author: Min Chen
Author: Matthias Floetenmeyer
Author: Thomas S. Bibby

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