Supermolecular structure of photosystem II and location of the PsbS protein

J. Nield, C. Funk, J. Barber, E. Hideg, U. Heber, K. Asada, J. F. Allen

Research output: Contribution to journalArticle

57 Citations (Scopus)


This paper addresses the question of whether the PsbS protein of photosystem two (PS II) is located within the LHC II-PS II supercomplex for which a three-dimensional structure has been obtained by cryoelectron microscopy and single particle analysis. The PsbS protein has recently been implicated as the site for non-photochemical quenching. Based both on immunoblotting analyses and structural considerations of an improved model of the spinach LHC II-PS II supercomplex, we conclude that the PsbS protein is not located within the supercomplex. Analyses of other fractions resulting from the solubilization of PS II-enriched membranes derived from spinach suggest that the PsbS protein is located in the LHC II-rich regions that interconnect the supercomplex within the membrane.

Original languageEnglish
Pages (from-to)1337-1344
Number of pages8
JournalPhilosophical Transactions of the Royal Society B: Biological Sciences
Issue number1402
Publication statusPublished - Oct 29 2000


  • Photosystem II
  • PsbS
  • Supermolecular structure

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

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