Results 11 to 20 of about 158,403 (236)

Cryo-EM structure of Chlamydomonas reinhardtii Photosystem I complexed with cytochrome c 6 [PDF]

open access: yesNature Communications
Photosynthetic electron transfer relies on small soluble carriers that shuttle electrons between the cytochrome b₆f complex and Photosystem I (PSI). While copper-containing plastocyanin (Pc) serves this role in plants, the heme protein cytochrome c₆ (Cyt
Yu Ogawa   +6 more
doaj   +2 more sources

Light‐harvesting complex II protein CP29 binds to photosystem I of Chlamydomonas reinhardtii under State 2 conditions

open access: yesThe FEBS Journal, 2005
The State 1 to State 2 transition in the photosynthetic membranes of plants and green algae involves the functional coupling of phosphorylated light‐harvesting complexes of photosystem II (LHCII) to photosystem I (PSI). We present evidence suggesting that in Chlamydomonas reinhardtii this coupling may be aided by a hyper‐phosphorylated form of the ...
J. Kargul   +5 more
semanticscholar   +3 more sources

An efficient clear-native PAGE–based workflow for cryo-electron microscopy sample preparation of large protein complexes [PDF]

open access: yesPlant Methods
Background Cryo-electron microscopy (cryo-EM) has revolutionized protein research by enabling high-resolution structural analysis. However, preparing ultra-large protein complexes (e.g., > 700 kDa) for cryo-EM remains challenging, as it requires ...
Zitong Yang   +6 more
doaj   +2 more sources

Photosynthetic Light Harvesting and Thylakoid Organization in a CRISPR/Cas9 Arabidopsis Thaliana LHCB1 Knockout Mutant

open access: yesFrontiers in Plant Science, 2022
Light absorbed by chlorophylls of Photosystems II and I drives oxygenic photosynthesis. Light-harvesting complexes increase the absorption cross-section of these photosystems.
Hamed Sattari Vayghan   +10 more
doaj   +1 more source

Chlorophyll‐protein complexes of barley photosystem I [PDF]

open access: yesEuropean Journal of Biochemistry, 1987
Photosystem I (PSI) preparations with a chlorophyll a/b ratio of 6.0 were isolated from barley thylakoids using two different methods. The high‐molecular‐mass complex (CP1a*) which is resolved by non‐denaturing gel electrophoresis had the same properties as a PSI preparation (PSI‐200) isolated by Triton X‐100 solubilisation of thylakoids followed by ...
R, Bassi, D, Simpson
openaire   +2 more sources

Structure of Photosystem I Supercomplex Isolated from a Chlamydomonas reinhardtii Cytochrome b6f Temperature-Sensitive Mutant

open access: yesBiomolecules, 2023
The unicellular green alga, Chlamydomonas reinhardtii, has been widely used as a model system to study photosynthesis. Its possibility to generate and analyze specific mutants has made it an excellent tool for mechanistic and biogenesis studies.
Tom Schwartz   +3 more
doaj   +1 more source

The Assembly of Super-Complexes in the Plant Chloroplast

open access: yesBiomolecules, 2021
Increasing evidence has revealed that the enzymes of several biological pathways assemble into larger supramolecular structures called super-complexes. Indeed, those such as association of the mitochondrial respiratory chain complexes play an essential ...
Kezhen Qin   +2 more
doaj   +1 more source

Self-assembling peptide detergents stabilize isolated photosystem I on a dry surface for an extended time. [PDF]

open access: yesPLoS Biology, 2005
We used a class of designed peptide detergents to stabilize photosystem I (PS-I) upon extended drying under N2 on a gold-coated-Ni-NTA glass surface. PS-I is a chlorophyll-containing membrane protein complex that is the primary reducer of ferredoxin and ...
Patrick Kiley   +5 more
doaj   +2 more sources

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