Results 51 to 60 of about 21,155,445 (195)
Due to the great abundance of genomes and protein structures that today span a broad diversity of organisms, now more than ever before, it is possible to reconstruct the molecular evolution of protein complexes at an incredible level of detail.
Tanai eCardona
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Structural Basis of Photosystem I and Its Photosynthesis Regulation in Green Plants
Photosynthesis is one of the most important chemical reactions on earth. Oxygenic photosynthetic organisms convert solar energy into chemical energy and release oxygen, thus sustaining almost all life on this planet.
SU Xiao-Dong, LI Mei
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Blue and red lights differently regulate leaf photosynthesis. Previous studies indicated that plants under blue light generally exhibit better photosynthetic characteristics than those under red light.
Yan-xiu MIAO +4 more
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Biochemische Charakterisierung von Photosystem-I-Komplexen aus Diatomeen [PDF]
Photosystem (PS) I is a huge membrane protein complex which coordinates around 200 co-factors. Upon light excitation a charge separation at the PS I reaction centre is induced which leads to an electron transport across the thylakoid membrane and the ...
Veith, Thomas
core
Photosystem I: a search for green plant trimers [PDF]
Recent blue-native gel electrophoresis studies gave evidence for the existence of dimeric and trimeric PSI complexes in green plants. We used single particle electron microscopy to investigate all the larger particles from the thylakoid membrane of pea (Pisum sativum var. Charmette).
Oosterwijk, Niels van +3 more
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Digalactosyl-diacylglycerol-deficiency lowers the thermal stability of thylakoid membranes [PDF]
We investigated the effects of digalactosyl-diacylglycerol (DGDG) on the organization and thermal stability of thylakoid membranes, using wild-type Arabidopsis thaliana and the DGDG-deficient mutant, dgd1. Circular-dichroism measurements reveal that DGDG-
Tünde Tóth +15 more
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Proteins of the cyanobacterial photosystem I
Cyanobacterial photosystem (PS) I is remarkably similar to its counterpart in the chloroplast of plants and algae. Therefore, it has served as a prototype for the type I reaction centers of photosynthesis. Cyanobacterial PS I contains 11-12 proteins. Some of the cyanobacterial proteins are modified post-translationally.
Xu, Wu +3 more
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Early Archean origin of heterodimeric Photosystem I
When and how oxygenic photosynthesis originated remains controversial. Wide uncertainties exist for the earliest detection of biogenic oxygen in the geochemical record or the origin of water oxidation in ancestral lineages of the phylum Cyanobacteria.
Tanai Cardona
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DnaK3, a highly conserved cyanobacterial chaperone of the Hsp70 family, binds to cyanobacterial thylakoid membranes, and an involvement of DnaK3 in the biogenesis of thylakoid membranes has been suggested. As shown here, light triggers synthesis of DnaK3
Adrien Thurotte +4 more
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Light harvesting in photosystem II [PDF]
This review focuses on the light-harvesting properties of photosystem I (PSI) and its LHCI outer antenna. LHCI consists of different chlorophyll a/b binding proteins called Lhca's, surrounding the core of PSI. In total, the PSI-LHCI complex of higher plants contains 173 chlorophyll molecules, most of which are there to harvest sunlight energy and to ...
Croce, R., van Amerongen, H.
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