Low temperature photochemistry and spectral properties of a photosystem 2 reaction center complex containing the proteins D1 and D2 and two hemes of Cyt b‐559
- 12 November 1989
- journal article
- Published by Wiley in FEBS Letters
- Vol. 258 (1) , 27-31
- https://doi.org/10.1016/0014-5793(89)81607-2
Abstract
A D1/D2/Cyt b‐559 complex isolated from spinach chloroplasts contained 4 chlorophylls, 2 pheophytins and 2 hemes of Cyt b‐559 with different redox potentials measured to be +70 mV(LP) (pH 7.2) and about −500 mV (XLP). Prereduced Cyt(LP) is photooxidized at 77 K due to the interaction with the state P680+ Ph − which produces the accumulation of Cyt+ P680 Ph−. Another Ph molecule is reduced with a midpoint potential of −450 mV and can interact with Cyt (XLP) forming a second electron transfer chain.Keywords
This publication has 17 references indexed in Scilit:
- X-ray structure analysis of a membrane protein complex: Electron density map at 3 Å resolution and a model of the chromophores of the photosynthetic reaction center from Rhodopseudomonas viridisPublished by Elsevier ,2005
- Characterisation of a PS II reaction centre isolated from the chloroplasts ofPisum sativumFEBS Letters, 1987
- The primary reaction of photosystem II in the D1‐D2‐cytochrome b‐559 complexFEBS Letters, 1987
- Isolation of a photosystem II reaction center consisting of D-1 and D-2 polypeptides and cytochrome b -559Proceedings of the National Academy of Sciences, 1987
- Structure of the protein subunits in the photosynthetic reaction centre of Rhodopseudomonas viridis at 3Å resolutionNature, 1985
- The Architecture of Photosystem II in Plant Photosynthesis Which Peptide Subunits Carry the Reaction Center of PS II?Published by Springer Nature ,1985
- Three-dimensional crystals of a membrane protein complexJournal of Molecular Biology, 1982
- Nanosecond fluorescence and absorbance changes in photosystem II at low redox potentialFEBS Letters, 1980
- The relationship between the activity of chloroplast Photosystem II and the midpoint oxidation-reduction potential of cytochrome b-559Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1977
- The primary photoreactions in the complex cytochrome-P-890 · P-760 (bacteriopheophytin760) of Chromatium minutissimum at low redox potentialsBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1976