Results 111 to 120 of about 386,002 (292)

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Evaluation de la robustesse d'une technologie HEMT GaN normally-off à implantation d’ions fluorures co-intégrée avec une technologie HEMT GaN normally-on [PDF]

, 2021
Thanks to the outstanding properties of GaN, such as its wide band gap, its high critical electric field, its ability to operate at high temperatures and its high frequency performances, GaN-based HEMTs are considered as the best candidates for the next ...
Albany, Florent
core  

Activity-dependent disruption of intersublaminar spaces and ABAKAN expression does not impact functional on and off organization in the ferret retinogeniculate system

Neural Development, 2011
In the adult visual system, functionally distinct retinal ganglion cells (RGCs) within each eye project to discrete targets in the brain. In the ferret, RGCs encoding light increments or decrements project to independent On and Off sublaminae within each
Sun Chao, Speer Colenso M, Chapman Barbara   +2 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Gate-tunable, normally-on to normally-off memristance transition inpatterned LaAlO3/SrTiO3 interfaces [PDF]

, 2017
The authors gratefully acknowledge the support from the state of Bavaria as well as from the Deutsche Forschungsgemeinschaft (FOR1162 and SFB1170).We report gate-tunable memristive switching in patterned LaAlO3/SrTiO3 interfaces at cryogenic temperatures.
Sing, M., Frank, M., L. Worschech, Hartmann, F., P. Maier, P. Scheiderer, Worschech, L., R. Claessen, M. Sing, Gabel, J., Leikert, B., Höfling, Sven, M. Frank, Scheiderer, P., S. Höfling, Kuhn, S., J. Gabel, B. Leikert, Claessen, R., Maier, P., F. Hartmann, S. Kuhn   +21 more
core   +1 more source

Un interrupteur GaN HEMT normally-off grâce à des ions fluor implantés sous l'interface AlGaN/GaN [PDF]

, 2014
AlGaN/GaN HEMTs are very promising candidates for high frequency applications with high power and low noise. Unfortunately, while switching applications strongly demand normally-off operation, conventional HEMTs are normally-on. For the sake of achieving
Morancho, Frédéric, Hamady, Saleem, Austin, Patrick, Gavelle, Mathieu, Beydoun, Bilal   +4 more
core   +2 more sources

Phosphoinositides and inositol phosphates as molecular glues

FEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry, Alexander J. Cutright, Mong Na Claire Loi, Jessica Martin, Joseph W. Gilligan, Jakub N. Kubina, Michael J. Arambula, Susanna Tanada Palmu, Daniella Zhou, Raymond D. Blind   +9 more
wiley   +1 more source

Fonction normally-on, normally-off compatible de la technologie HEMT GaN pour des applications de puissance, hyperfréquences [PDF]

, 2018
This document reports on research and development efforts towards a normally-on/normally-off integrated GaN HEMT technology that remains compatible with the material and processing dedicated to normally-on microwave devices. Following several theoretical
Trinh Xuan, Linh
core