Flavodiiron proteins in photosynthetic electron transfer
نویسندگان
چکیده
منابع مشابه
Primary Electron Transfer in Photosynthetic Reaction Centers
enhancement of the T-d8 concentration relative to EtOH (bulk solution has a value of =0.25) followed by a near-linear decrease after the break. Returning to the Fickian solution and using the slower turn on of the surface concentration could represent the EtOH diffusion into the polystyrene. Figure 9 with a = 1 would be indicative if an induction period was included. That the EtOH is constraine...
متن کاملElectron transfer in the photosynthetic reaction center.
Photosynthesis occurs via electron transfer between pigment molecules or prosthetic groups embedded in a thylakoid membrane protein complex. These pigments form the “conductive pathway” for electron flow and the surrounding protein serves as a“shaping insulator”. Electron transfer through the protein proceeds via quantum tunneling into succesively lower potential wells represented by the pigmen...
متن کاملElectron transfer in proteins.
Electron-transfer (ET) reactions are key steps in a diverse array of biological transformations ranging from photosynthesis to aerobic respiration. A powerful theoretical formalism has been developed that describes ET rates in terms of two parameters: the nuclear reorganization energy (lambda) and the electronic-coupling strength (HAB). Studies of ET reactions in ruthenium-modified proteins hav...
متن کاملMechanisms of long-distance electron transfer in proteins: lessons from photosynthetic reaction centers.
ELECTRON TRANSFER REACTIONS I THE REACTION CENTER ............................................. 275 Summary of Reactions To Be Considered ................................................................. 275 Electric Field Effects on Electron Transfer Reactions ............................................... 278 Electric Field Effects on the Initial Charge Separation ..............................
متن کاملAlternating electron and proton transfer steps in photosynthetic water oxidation.
Water oxidation by cyanobacteria, algae, and plants is pivotal in oxygenic photosynthesis, the process that powers life on Earth, and is the paradigm for engineering solar fuel-production systems. Each complete reaction cycle of photosynthetic water oxidation requires the removal of four electrons and four protons from the catalytic site, a manganese-calcium complex and its protein environment ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biochimica et Biophysica Acta (BBA) - Bioenergetics
سال: 2014
ISSN: 0005-2728
DOI: 10.1016/j.bbabio.2014.05.126