Results 61 to 70 of about 207,666 (291)

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Amplification of weak magnetic field effects on oscillating reactions

Scientific Reports, 2021
We explore the possibility that chemical feedback and autocatalysis in oscillating chemical reactions could amplify weak magnetic field effects on the rate constant of one of the constituent reactions, assumed to proceed via a radical pair mechanism ...
Thomas C. Player, Edward D. A. Baxter, Sarah Allatt, P. J. Hore   +3 more
doaj   +1 more source

Solvent effects on the magnetic-field-dependent reaction yields of photogenerated radical ion pairs.

, 1989
A pronounced solvent viscosity and polarity dependence of the magnetic field effect was found for polymethylene-linked radical ion pairs generated by photoinduced intramolecular electron transfer in compounds of the type pyrene-(CH2)n-N,N-dimethylaniline,
Busmann, H., Kühnle, W., Staerk, H., Weller, A.   +3 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Electron spin relaxation can enhance the performance of a cryptochrome-based magnetic compass sensor

New Journal of Physics, 2016
The radical pair model of the avian magnetoreceptor relies on long-lived electron spin coherence. Dephasing, resulting from interactions of the spins with their fluctuating environment, is generally assumed to degrade the sensitivity of this compass to ...
Daniel R Kattnig, Jakub K Sowa, Ilia A Solov'yov, P J Hore   +3 more
doaj   +1 more source

Weak broadband electromagnetic fields are more disruptive to magnetic compass orientation in a night-migratory songbird (Erithacus rubecula) than strong narrow-band fields

Frontiers in Behavioral Neuroscience, 2016
Magnetic compass orientation in night-migratory songbirds is embedded in the visual system and seems to be based on a light-dependent radical pair mechanism. Recent findings suggest that both broadband electromagnetic fields ranging from ~2 kHz to ~9 MHz
Susanne eSchwarze, Susanne eSchwarze, Nils-Lasse eSchneider, Nils-Lasse eSchneider, Thomas eReichl, Thomas eReichl, David eDreyer, David eDreyer, Nele eLefeldt, Nele eLefeldt, Svenja eEngels, Svenja eEngels, Neville eBaker, P J Hore, Henrik eMouritsen, Henrik eMouritsen   +15 more
doaj   +1 more source

Glutathione--hydroxyl radical interaction: a theoretical study on radical recognition process. [PDF]

PLoS ONE, 2013
Non-reactive, comparative (2 × 1.2 μs) molecular dynamics simulations were carried out to characterize the interactions between glutathione (GSH, host molecule) and hydroxyl radical (OH(•), guest molecule).
Béla Fiser, Balázs Jójárt, Imre G Csizmadia, Béla Viskolcz   +3 more
doaj   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Radical pair model for magnetic field effects on NMDA receptor activity

Scientific Reports
The N-methyl-D-aspartate receptor is a prominent player in brain development and functioning. Perturbations to its functioning through external stimuli like magnetic fields can potentially affect the brain in numerous ways.
Parvathy S. Nair, Hadi Zadeh-Haghighi, Christoph Simon   +2 more
doaj   +1 more source

The Magnetic Compass of Birds: The Role of Cryptochrome

Frontiers in Physiology, 2021
The geomagnetic field provides directional information for birds. The avian magnetic compass is an inclination compass that uses not the polarity of the magnetic field but the axial course of the field lines and their inclination in space.
Roswitha Wiltschko, Christine Nießner, Wolfgang Wiltschko   +2 more
doaj   +1 more source