Results 51 to 60 of about 612,322 (296)
Unique photosynthetic electron transport tuning and excitation distribution in heterokont algae.
Heterokont algae are significant contributors to marine primary productivity. These algae have a photosynthetic machinery that shares many common features with that of Viridiplantae (green algae and land plants).
Gunvor Bjerkelund Røkke+5 more
doaj +1 more source
Ischemic postconditioning influences electron transport chain protein turnover in Langendorff-perfused rat hearts [PDF]
Ischemia postconditioning (IPo) is a promising strategy in reducing myocardial ischemia reperfusion (I/R) injury (MIRI), but its specific molecular mechanism is incompletely understood.
Song Cao+9 more
doaj +2 more sources
Spin transport in long-range interacting one-dimensional chain [PDF]
We numerically study spin transport and nonequilibrium spin-density profiles in a clean one-dimensional spin-chain with long-range interactions, decaying as a power-law,$r^{-\alpha}$ with distance. We find two distinct regimes of transport: for $\alpha<1/2$, spin excitations relax instantaneously in the thermodynamic limit, and for $\alpha>1/2$, spin ...
arxiv +1 more source
Melatonin and the electron transport chain
Melatonin protects the electron transport chain (ETC) in multiple ways. It reduces levels of ·NO by downregulating inducible and inhibiting neuronal nitric oxide synthases (iNOS, nNOS), thereby preventing excessive levels of peroxynitrite. Both ·NO and peroxynitrite-derived free radicals, such as ·NO2, hydroxyl (·OH) and carbonate radicals (CO3 ...
openaire +4 more sources
Regulation of photosynthetic electron transport [PDF]
The photosynthetic electron transport chain consists of photosystem II, the cytochrome b6f complex, photosystem I, and the free electron carriers plastoquinone and plastocyanin.
Rochaix, Jean-David
core +1 more source
Electron-like Fermi surface and in-plane anisotropy due to chain states in YBa$_2$Cu$_3$O$_{7-δ}$ superconductors [PDF]
We present magneto-transport calculations for YBa$_2$Cu$_3$O$_{7-\delta}$ (YBCO) materials to show that the electron-like metallic chain state gives both the negative Hall effect and in-plane anisotropic large Nernst signal. We show that the inevitable presence of the metallic 1D CuO chain layer lying between the CuO2 bilayers in YBCO renders an ...
arxiv +1 more source
The glacier ice worm Mesenchytraeus solifugus survives year‐round at 0 °C. Its ATP6 subunit, which forms a regulatory component of the proton pore in mitochondrial ATP synthase, has a carboxy‐terminal extension not found in any other organism examined to date. Here, we show that fusion of this extension to the homologous AtpB protein in E. coli results
Truman Dunkley+2 more
wiley +1 more source
Modeling the electron transport chain of purple non‐sulfur bacteria
Purple non‐sulfur bacteria (Rhodospirillaceae) have been extensively employed for studying principles of photosynthetic and respiratory electron transport phosphorylation and for investigating the regulation of gene expression in response to redox ...
Steffen Klamt+4 more
doaj +1 more source
Phosphorylation disrupts long-distance electron transport in cytochrome c
Electron transfer between mitochondrial cytochrome c and subunit of cytochrome bc 1 can proceed at long distance. Here the authors investigate further the mechanism and show phosphorylation regulation of the interactions between the protein partners in ...
Alexandre M. J. Gomila+13 more
doaj +1 more source
We study ballistic electron transport through a finite chain of quantum circular rings in the presence of spin-orbit interaction of strength \alpha. For a single ring the transmission and reflection coefficients are obtained analytically and from them ...
B. Molnár+3 more
core +1 more source