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Photodisintegration reaction rates involving charged particles are of relevance to the p-process nucleosynthesis that aims at explaining the production of the stable neutron-deficient nuclides heavier than iron. In this study, the cross…

We have studied the mobility of the folding catalyst, protein disulphide-isomerase (PDI), by molecular dynamics and by a rapid approach based on flexibility. We analysed our simulations using measures of backbone movement, relative…

Predicting changes in binding free energy ($\Delta\Delta G$) is a vital task in protein engineering and protein-protein interaction (PPI) engineering for drug discovery. Previous works have observed a high correlation between $\Delta\Delta…

机器学习 · 计算机科学 2025-08-15 Patrick Soga , Zhenyu Lei , Yinhan He , Camille Bilodeau , Jundong Li

Current voltage (I-V) characteristics in proteins can be sensitive to conformational change induced by an external stimulus (photon, odour, etc.). This sensitivity can be used in medical and industrial applications besides shedding new…

软凝聚态物质 · 物理学 2015-05-28 Eleonora Alfinito , Jean-Francois Millithaler , Lino Reggiani

Current all-atom potential based molecular dynamics (MD) allow the identification of a protein's functional motions on a wide-range of time-scales, up to few tens of ns. However, functional large scale motions of proteins may occur on a…

统计力学 · 物理学 2007-05-23 Cristian Micheletti , Paolo Carloni , Amos Maritan

Nanoindentation, a common technique for probing the mechanical properties of crystalline materials, exhibits both surface and bulk-dominated responses that are linked to the parent crystal's elasticity and plasticity. For FCC crystals, the…

An Ising--like model of proteins is used to investigate the mechanical unfolding of the Green Fluorescent Protein along different directions. When the protein is pulled from its ends, we recover the major and minor unfolding pathways…

软凝聚态物质 · 物理学 2011-08-16 M. Caraglio , A. Imparato , A. Pelizzola

Nitrogen-vacancy (NV) based quantum sensors hold great potential for real-time single-cell sensing with far-reaching applications in fundamental biology and medical diagnostics. Although highly sensitive, the mapping of quantum measurements…

Protein-protein docking is crucial for understanding how proteins interact. Numerous docking tools have been developed to discover possible conformations of two interacting proteins. However, the reliability and success of these docking…

生物大分子 · 定量生物学 2025-11-18 Azam Shirali , Vitalii Stebliankin , Jimeng Shi , Prem Chapagain , Giri Narasimhan

Integral membrane proteins deform the surrounding bilayer creating long-ranged forces that influence distant proteins. These forces can be attractive or repulsive, depending on the proteins' shape, height, contact angle with the bilayer, as…

统计力学 · 物理学 2007-05-23 Tom Chou , Ken S. Kim , George Oster

Hydrostatic pressure is a common perturbation to probe the conformations of proteins. There are two common forms of pressure dependent potentials of mean force (PMFs) derived from hydrophobic molecules available for the coarse grained…

生物大分子 · 定量生物学 2020-11-17 Andrei G. Gasic , Margaret S. Cheung

We report a multiscale modeling study for charged cylindrical nanopores using three modeling levels that include (1) an all-atom explicit-water model studied with molecular dynamics (MD), and reduced models with implicit water containing…

The OH-terminated self-assembled monolayers, as protein-resistant surfaces, have significant potential in biocompatible implant devices, which can avoid or reduce adverse reactions caused by protein adhesion to biomaterial surfaces, such as…

应用物理 · 物理学 2022-12-08 Dangxin Mao , Yuan-Yan Wu , Yusong Tu

Electrokinetic force has been the major choice for driving the translocation of molecules through a nanopore. However, the use of this approach is limited by an uncontrollable translocation speed, resulting in non-uniform conductance…

应用物理 · 物理学 2024-04-22 Jianxin Yang , Tianle Pan , Zhenming Xie , Wu Yuan , Ho-Pui Ho

Some hard sphere colloidal models have been criticized for inaccurately predicting the solution viscosity of complex biological molecules like proteins. Competing short-range attractions and long-range repulsions, also known as SALR…

软凝聚态物质 · 物理学 2022-09-13 Sabitoj Singh Virk , Patrick T. Underhill

Once the magnesium alloy was implanted in the body, it was immediately covered with plasma proteins. The coated alloy surface promoted the adsorption and growth of osteoblasts. Herein, in vitro biological reactions of the ZK60 and AZ31…

生物物理 · 物理学 2022-07-26 Xian Wei , Jiajia Menga , Sujie Ma , Yanchun Li , Hong Qing , Xubiao Peng , Bo Zhang , Qing Zhao

Both the translational diffusion coefficient $D$ and the electrophoretic mobility $\mu$ of a short rod-like molecule (such as dsDNA) that is being pulled towards a nanopore by an electric field should depend on its orientation. Since a…

生物物理 · 物理学 2020-06-25 Le Qiao , Gary W. Slater

Many types of peripheral and transmembrane proteins can sense and generate membrane curvature. Laterally isotropic proteins and crescent proteins with twofold rotational symmetry, such as Bin/Amphiphysin/Rvs superfamily proteins, have been…

软凝聚态物质 · 物理学 2024-02-12 Hiroshi Noguchi

The translocation of a macromolecule through a nanometer-sized pore is an interesting process with important applications in the development of biosensors for single--molecule analysis and in drug delivery and gene therapy. We have carried…

统计力学 · 物理学 2009-09-29 Yves Lansac , Prabal K. Maiti , Matthew A. Glaser

In recent years significant efforts have been made to design and fabricate functional nanomaterials for biomedical applications based on the control of light matter interaction at the nanometer scale. Among many other artificial materials,…