Abstract
Pure and active oxygen-evolving PS II core particles containing 35 Chl per reaction center were isolated with 75% yield from spinach PS II membrane fragments by incubation with n-dodecyl-β-D-maltoside and a rapid one step anion-exchange separation. By Triton X-100 treatment on the column these particles could be converted with 55% yield to pure and active PS II reaction center particles, which contained 6 Chl per reaction center.
Abbreviations
- Bis-Tris:
-
bis[2-hydroxyethyl]imino-tris[hydroxymethyl]methane
- Chl:
-
chlorophyll
- CP29:
-
Chl a/b protein of 29 kDa
- Cyt b 559 :
-
cytochrome b 559
- DCBQ:
-
2,5-dichloro-p-benzo-quinone
- LHC II:
-
light-harvesting complex II, predominant Chl a/b protein
- MES:
-
2-[N-Morpholino]ethanesulfonic acid
- Pheo:
-
pheophytin
- PS H:
-
photosystem II
- QA :
-
bound plastoquinone, serving as the secondary electron acceptor in PS II (after Pheo)
- SDS:
-
sodiumdodecylsulfate
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van Leeuwen, P.J., Nieveen, M.C., van de Meent, E.J. et al. Rapid and simple isolation of pure photosystem II core and reaction center particles from spinach. Photosynth Res 28, 149–153 (1991). https://doi.org/10.1007/BF00054128
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DOI: https://doi.org/10.1007/BF00054128