Results 31 to 40 of about 103,280 (234)

Conformation-changing enzymes and macromolecular crowding

open access: yesPhysical Chemistry Chemical Physics, 2021
We study how crowding affects the activity and catalysis-enhanced diffusion of enzymes and passive tracers by employing a fluctuating-dumbbell model of conformation-changing enzymes.
Tomasz Skóra   +2 more
openaire   +4 more sources

A physicochemical perspective of aging from single-cell analysis of pH, macromolecular and organellar crowding in yeast

open access: yeseLife, 2020
Cellular aging is a multifactorial process that is characterized by a decline in homeostatic capacity, best described at the molecular level. Physicochemical properties such as pH and macromolecular crowding are essential to all molecular processes in ...
Sara N Mouton   +9 more
doaj   +1 more source

Macromolecular crowding effects on the kinetics of opposing reactions catalyzed by alcohol dehydrogenase

open access: yesBiochemistry and Biophysics Reports, 2021
In order to better understand how the complex, densely packed, heterogeneous milieu of a cell influences enzyme kinetics, we exposed opposing reactions catalyzed by yeast alcohol dehydrogenase (YADH) to both synthetic and protein crowders ranging from 10
Xander E. Wilcox   +2 more
doaj   +1 more source

Adapting the Scar-in-a-Jar to Skin Fibrosis and Screening Traditional and Contemporary Anti-Fibrotic Therapies

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Skin fibrosis still constitutes an unmet clinical need. Although pharmacological strategies are at the forefront of scientific and technological research and innovation, their clinical translation is hindered by the poor predictive capacity of the ...
João Q. Coentro   +8 more
doaj   +1 more source

Macromolecular crowding and membrane binding proteins:the case of phospholipase A1 [PDF]

open access: yes, 2018
Cells contain high levels of macromolecular crowding; understanding how macromolecular crowding impacts the behaviour of biological systems can give new insights into biological phenomena and disease pathologies.
Mayoral-Delgado, Isabel   +3 more
core   +1 more source

Macromolecular diffusion in crowded solutions

open access: yesBiophysical Journal, 1993
The effects of crowding on the self or tracer diffusion of macromolecules in concentrated solutions is an important but difficult problem, for which, so far, there has been no rigorous treatment. Muramatsu and Minton suggested a simple model to calculate the diffusion coefficient of a hard sphere among other hard spheres.
Han, J., Herzfeld, J.
openaire   +2 more sources

Macromolecular Crowding In Vitro , In Vivo , and In Between [PDF]

open access: yesTrends in Biochemical Sciences, 2016
Biochemical processes take place in heterogeneous and highly volume-occupied or crowded environments that can considerably influence the reactivity and distribution of participating macromolecules. We summarize here the thermodynamic consequences of excluded-volume and long-range nonspecific intermolecular interactions for macromolecular reactions in ...
Germán, Rivas, Allen P, Minton
openaire   +2 more sources

A combined physicochemical approach towards human tenocyte phenotype maintenance

open access: yesMaterials Today Bio, 2021
During in vitro culture, bereft of their optimal tissue context, tenocytes lose their phenotype and function. Considering that tenocytes in their native tissue milieu are exposed simultaneously to manifold signals, combination approaches (e.g.
C.N.M. Ryan   +9 more
doaj   +1 more source

An upper limit for macromolecular crowding effects [PDF]

open access: yesBMC Biophysics, 2011
Abstract Background Solutions containing high macromolecule concentrations are predicted to affect a number of protein properties compared to those properties in dilute solution. In cells, these macromolecular crowders have a large range of sizes and can occupy 30% or more of the available volume.
Miklos, Andrew C.   +4 more
openaire   +3 more sources

Seaweed polysaccharides as macromolecular crowding agents

open access: yesInternational Journal of Biological Macromolecules, 2020
Development of mesenchymal stem cell-based tissue engineered implantable devices requires prolonged in vitro culture for the development of a three-dimensional implantable device, which leads to phenotypic drift, thus hindering the clinical translation and commercialisation of such approaches.
De Pieri, Andrea   +3 more
openaire   +3 more sources

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