Results 191 to 200 of about 13,354,138 (226)
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Molecular Plant, 2023
Photosystem II (PSII) is a multi-subunit protein complex of the photosynthetic electron transport chain that is vital to photosynthesis. Although the structure, composition, and function of PSII have been extensively studied, its biogenesis mechanism remains less understood.
Wei Li +20 more
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Photosystem II (PSII) is a multi-subunit protein complex of the photosynthetic electron transport chain that is vital to photosynthesis. Although the structure, composition, and function of PSII have been extensively studied, its biogenesis mechanism remains less understood.
Wei Li +20 more
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Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1993
Abstract Fluorescence emission spectra for the seven chlorophyll-protein complexes comprising the antenna system of Photosystem II (PS II) have been measured. All four outer antenna complexes (LHC II, CP24, CP26, CP29) have relatively greater emission near 648 nm and 680 nm with respect to the inner antenna complexes (CP43, CP47, D1/D2/cyt b-559 ...
JENNINGS R. C. +5 more
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Abstract Fluorescence emission spectra for the seven chlorophyll-protein complexes comprising the antenna system of Photosystem II (PS II) have been measured. All four outer antenna complexes (LHC II, CP24, CP26, CP29) have relatively greater emission near 648 nm and 680 nm with respect to the inner antenna complexes (CP43, CP47, D1/D2/cyt b-559 ...
JENNINGS R. C. +5 more
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Co-translational Assembly of the D1 Protein into Photosystem II Complexes
1998Chloroplast-encoded D1 and D2 proteins, the heterodimer reaction centre polypeptides of photosystem II (PS II) bind all the components necessary for the primary charge separation. The D1 protein has an unusually high turnover rate as compared to the other chloroplast proteins (1,2).
Lixin Zhang +3 more
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Isolation of manganese-containing protein complex from photosystem II preparations of spinach
Biochemistry, 1986Purified 125I-labeled 33-kDa protein binds to calcium-washed photosystem II preparations at high-affinity and low-affinity binding sites. Filling 70% of the high-affinity site with 33-kDa protein induces 63% of the maximum achievable reconstitution of O2-evolving activity.
N R, Bowlby, W D, Frasch
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A study of an energy harvesting device based on photosystem-II protein complex
2014 IEEE International Symposium on Bioelectronics and Bioinformatics (IEEE ISBB 2014), 2014In this study, we accomplished a solid-state photosystem-II (PSII) device for bio-inherited solar energy-harvesting device. With solid-state PSII embedded, this is an innovative device with better life time and stable performance than previous photosystem based devices.
null Pu-Sung Huang +3 more
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Photosystem II activity and pigment-protein complexes in flashed bean leaves
Plant Science Letters, 1973Abstract Bean leaves exposed to cycles of 2 min light—118 min dark, (1) can photoreduce cytochrome f ; (2) have cytochrome b -559 HP ; (3) have a DCMU (3-[3′,4′-dichlorophenyl]-1,1-dimethylurea)-sensitive Hill reaction. Detergent extracts of the plastids show only pigment-protein complex I.
R.G Hiller, Dori Pilger, Sandra Genge
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Photosynthesis Research, 1990
Chloride plays a key role in activating the photosynethetic oxygen-evolving complex (OEC) of Photosystem II, but the OEC is only one of many enzymes affected by this anion. Some of the mechanistic features of Cl(-) involvement in water-splitting resemble those of other proteins whose structure and chemistry are known in detail.
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Chloride plays a key role in activating the photosynethetic oxygen-evolving complex (OEC) of Photosystem II, but the OEC is only one of many enzymes affected by this anion. Some of the mechanistic features of Cl(-) involvement in water-splitting resemble those of other proteins whose structure and chemistry are known in detail.
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Vectorial Charge Transfer Reactions in the Protein-Pigment Complex of Photosystem II
2017The pigment-protein complex of photosystem II localized in the thylakoid membranes of higher plants, algae, and cyanobacteria is the main source of oxygen on Earth. The light-induced functioning of photosystem II is directly linked to electron and proton transfer across the membrane, which results in the formation of transmembrane electric potential ...
Mahir D. Mamedov, Alexey Yu Semenov
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Archives of Biochemistry and Biophysics, 1977
Abstract The diatom Phaeodactylum tricornutum has been grown in defined medium with known amounts of 54 Mn and Cu. The diatoms were then fractionated by mild procedures to isolate a metallo-pigment-protein complex. This complex had a molecular weight of 850,000 and probably was made up of 40 subunits of protein, 40 mol of chlorophyll a , 20 mol ...
Holdsworth, Eric S., Arshad, Juzu Hayati
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Abstract The diatom Phaeodactylum tricornutum has been grown in defined medium with known amounts of 54 Mn and Cu. The diatoms were then fractionated by mild procedures to isolate a metallo-pigment-protein complex. This complex had a molecular weight of 850,000 and probably was made up of 40 subunits of protein, 40 mol of chlorophyll a , 20 mol ...
Holdsworth, Eric S., Arshad, Juzu Hayati
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The status of cysteine residues in the extrinsic 33 kDa protein of spinach photosystem II complexes
Photosynthesis Research, 1988Two cysteine residues of the extrinsic 33 kDa protein in the oxygen-evolving photosystemII (PS II) complexes were found to exist as cystine residues in situ. The 33 kDa protein, when reduced by 2-mercaptoethanol in either the presence or the absence of 6 M guanidine-HCl (Gdn-HCl), could not rebind with the CaCl2-treated PS II complexes, from which the ...
S, Tanaka, K, Wada
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