Results 51 to 60 of about 69,820 (250)

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

open access: yesFEBS 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   +6 more
wiley   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

open access: yesFEBS 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   +9 more
wiley   +1 more source

Nucleic Acid Thermodynamics Derived from Mechanical Unzipping Experiments

open access: yesLife, 2022
Force-spectroscopy techniques have led to significant progress in studying the physicochemical properties of biomolecules that are not accessible in bulk assays. The application of piconewton forces with laser optical tweezers to single nucleic acids has
Paolo Rissone, Felix Ritort
doaj   +1 more source

Making connections — strategies for single molecule fluorescence biophysics

open access: yesCurrent Opinion in Chemical Biology, 2013
Fluorescence spectroscopy and fluorescence microscopy carried out on the single molecule level are elegant methods to decipher complex biological systems; it can provide a wealth of information that frequently is obscured in the averaging of ensemble measurements.
Grohmann, D, Werner, F, Tinnefeld, P
openaire   +3 more sources

New tools to study biophysical properties of single molecules and single cells [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2007
We present a review on two new tools to study biophysical properties of single molecules and single cells. A laser incident through a high numerical aperture microscope objective can trap small dielectric particles near the focus. This arrangement is named optical tweezers.
Rocha, Márcio S., Mesquita, Oscar N.
openaire   +5 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Networked salt-bridges mediate magnesium-dependent conformational dynamics and functional regulation in type IA topoisomerases

open access: yesNature Communications
Protein conformational dynamics are fundamental to enzyme function, yet the molecular mechanisms by which these dynamics are regulated remain poorly understood. Here, we reveal that a conserved network of salt-bridges, modulated by magnesium ions, serves
Yeonee Seol   +2 more
doaj   +1 more source

Systems biophysics: Single-molecule optical proteomics in single living cells [PDF]

open access: yesCurrent Opinion in Systems Biology, 2018
Abstract How does the interplay between biomolecules result in the emergence of cellular complexity at higher length scales? This interplay in even simple biological processes is often too challenging to probe using traditional experimental tools of ensemble averaging across several thousands of molecules.
Shashkova, Sviatlana   +1 more
openaire   +2 more sources

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Single-molecule techniques in biophysics: a review of the progress in methods and applications [PDF]

open access: yesReports on Progress in Physics, 2017
Abstract Single-molecule biophysics has transformed our understanding of biology, but also of the physics of life. More exotic than simple soft matter, biomatter lives far from thermal equilibrium, covering multiple lengths from the nanoscale of single molecules to up to several orders of magnitude higher in cells,
Miller, Helen Louise   +4 more
openaire   +4 more sources

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