Photosystem II, the pigment-protein complex responsible for water oxidation in photosynthesis, was found to exist in two different core conformations with altered antennae connectivity.
Serial-Block-Face Scanning Electron Microscopy (SBF-SEM) associated with biomolecular analysis show that chloroplast differentiation proceeds by distinct ‘structure establishment’ and ‘chloroplast proliferation’ phases, each with differential protein and lipid regulation.
The nature of the phycobilisome–photosystem II supercomplex on the native thylakoid determined with cryo-electron tomography at an unprecedented resolution reveals that one phycobilisome interconnects with six photosystem monomers.
Manuela Kramer, Melvin Rodriguez-Heredia ... Guy Thomas Hanke
The regulatory switch from protection to assimilation, which plants use to exploit natural, fluctuating light, involves movement of the enzyme ferredoxin:NADP(H) oxidoreductase between chloroplast membrane complexes.
Felicity Alcock, Phillip J Stansfeld ... Ben C Berks
Evolutionary bioinformatics and experimentation are applied to the components of the Tat protein transport system to elucidate the structure of the membrane-bound receptor complex and to deduce a molecular description for its substrate-triggered activation.
Julianne M Troiano, Federico Perozeni ... Gabriela S Schlau-Cohen
Light-harvesting complex stress-related is a protein from photosynthetic green algae that prevents damage from sunlight via two distinct conformational processes, which protect against different timescales of solar fluctuations.
A plant autophagy pathway transports chloroplast stroma and envelope components into the vacuole through the division and encapsulation of the site of chloroplasts that is associated with developing autophagosome.
Oxidative modification of Tryptophan residues in the reaction center protein D1 may be a key to drive the Photosystem II repair, likely enhancing accessibility of FtsH protease to D1.
