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Supramolecular organization of phycobiliproteins in the chlorophyll d-containing cyanobacterium Acaryochloris marina.

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Affiliations

  • 1. School of Biological Sciences, University of Sydney, New South Wales 2006, Australia.
      Authors
    • Chen M 1
    (1 author)

ORCIDs linked to this article

FEBS Letters, 15 Jul 2009, 583(15):2535-2539
https://doi.org/10.1016/j.febslet.2009.07.012 PMID: 19596002 

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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Read article at publisher's site: https://doi.org/10.1016/j.febslet.2009.07.012

Read article for free, from open access legal sources, via Unpaywall: https://onlinelibrary.wiley.com/doi/pdfdirect/10.1016/j.febslet.2009.07.012Unpaywall

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