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Biological membranes are elastic media in which the presence of a transmembrane protein leads to local bilayer deformation. The energetics of deformation allow two membrane proteins in close proximity to influence each other's equilibrium…

Subcellular Processes · Quantitative Biology 2015-06-26 Tristan Ursell , Kerwyn Huang , Eric Peterson , Rob Phillips

Hemoglobin exhibits allosteric structural changes upon ligand binding due to the dynamic interactions between the ligand binding sites, the amino acids residues and some other solutes present under physiological conditions. In the present…

Chemical Physics · Physics 2012-10-15 Olaniyi K. Yusuff , Jonathan O. Babalola , Giovanni Bussi , Simone Raugei

Neurodegenerative diseases, such as Alzheimer's and Parkinson's, pose a growing global health burden. Prolyl oligopeptidase (PREP) has emerged as a potential therapeutic target in these diseases. Recent studies have shown that direct…

Chemical Physics · Physics 2025-03-20 Katarzyna Walczewska-Szewc , Jakub Rydzewski

Brownian Dynamics is used to study self-assembly in a hybrid system of istotropic particles (IPs), combined with anisotropic building blocks that represent special "designer particles". Those are modeled as spherical patchy particles (PPs)…

Soft Condensed Matter · Physics 2022-01-26 Srinivas Mushnoori , Jack A. Logan , Alexei V. Tkachenko , Meenakshi Dutt

A distinguishing feature of active particles is the nature of the non-equilibrium noise driving their dynamics. Control of these noise properties is, therefore, of both fundamental and applied interest. We demonstrate emergent tuning of the…

Soft Condensed Matter · Physics 2021-01-05 Aniruddh Murali , Pritha Dolai , Ashwini Krishna , K. Vijay Kumar , Shashi Thutupalli

Grasping is an essential capability for most robots in practical applications. Soft robotic grippers are considered as a critical part of robotic grasping and have attracted considerable attention in terms of the advantages of the high…

Robotics · Computer Science 2021-11-09 Huixu Dong , Chao-Yu Chen , Chen Qiu , Chen-Hua Yeow , Haoyong Yu

Protein conformational transitions, which are essential for function, may be driven either by entropy or enthalpy when molecular systems comprising solute and solvent molecules are the focus. Revealing thermodynamic origin of a given…

Biomolecules · Quantitative Biology 2015-05-04 Kai Wang , Shiyang Long , Zhiming Zhang , Lanru Liu , Qimeng Wang , Pu Tian

Protein assembly plays an important role in the regulation of biological systems. The cytoskeleton assembly activity is provided by the binding cofactors GTP (guanidine triphosphate) or ATP(adenosine triphosphate) to monomeric protein, and…

Subcellular Processes · Quantitative Biology 2015-10-13 Tatsuaki Tsuruyama

The interacting boson model with configuration mixing, with parameters derived from the self-consistent mean-field calculation employing the microscopic Gogny energy density functional, is applied to the systematic analysis of the low-lying…

Nuclear Theory · Physics 2014-02-04 K. Nomura , R. Rodriguez-Guzman , L. M. Robledo

Motor-proteins are responsible for transport inside cells. Harnessing their activity is key towards developing new nano-technologies, or functional biomaterials. Cytoskeleton-like networks, recently tailored in vitro, result from the…

Soft Condensed Matter · Physics 2016-06-21 Pau Guillamat , Jordi Ignés-Mullol , Francesc Sagués

Small groups of interneurons, abbreviated by CPG for central pattern generators, are arranged into neural networks to generate a variety of core bursting rhythms with specific phase-locked states, on distinct time scales, that govern vital…

Chaotic Dynamics · Physics 2015-06-17 Sajiya Jalil , Dane Allen , Joe Youker , Andrey Shilnikov

Microtubules (MTs) are cytoplasmic protein polymers that are essential for fundamental cellular processes including the maintenance of cell shape, organelle transport and formation of the mitotic spindle. Microtubule dynamic instability is…

Biomolecules · Quantitative Biology 2014-04-09 Chunlei Li , Jun Li , Holly V. Goodson , Mark S. Alber

The synthesis, physical, photocatalytic, and antibacterial properties of MgO and graphene nanoplatelets (GNPs) nanocomposites are reported. The crystallinity, phase, morphology, chemical bonding, and vibrational modes of prepared…

Materials Science · Physics 2017-01-13 Aqsa Arshad , Javed Iqbal , M. Siddiq , Qaisar Mansoor , M. Ismail , Faisal Mehmood , M. Ajmal , Zubia Abid

Proteins are the "work horses" in biological systems. In almost all functions specific proteins are involved. They control molecular transport processes, stabilize the cell structure, enzymatically catalyze chemical reactions; others act as…

Statistical Mechanics · Physics 2009-02-18 Michael Bachmann , Wolfhard Janke

The spatial organization of cell membrane glycoproteins and glycolipids is critical for mediating the binding of ligands, receptors, and macromolecules on the plasma membrane. However, we currently do not have the methods to quantify the…

Biological Physics · Physics 2023-06-21 Daniel P. Arnold , Yaxin Xu , Sho C. Takatori

The 70 kDa Heat Shock Proteins Hsp70 have several essential functions in living systems, such as protecting cells against protein aggregation, assisting protein folding, remodeling protein complexes and driving the translocation into…

Biomolecules · Quantitative Biology 2017-07-26 Basile Nguyen , David Hartich , Udo Seifert , Paolo De Los Rios

Intrinsically disordered proteins (IDPs) do not possess well-defined three-dimensional structures in solution under physiological conditions. We develop all-atom, united-atom, and coarse-grained Langevin dynamics simulations for the IDP…

Intrinsically disordered proteins (IDPs) and multidomain proteins with flexible linkers show a high level of structural heterogeneity and are best described by ensembles consisting of multiple conformations with associated thermodynamic…

Biomolecules · Quantitative Biology 2021-12-13 F. Emil Thomasen , Kresten Lindorff-Larsen

Many biologically important ligands of proteins are large, flexible, and often charged molecules that bind to extended regions on the protein surface. It is infeasible or expensive to locate such ligands on proteins with standard methods…

Understanding physical rules underlying collective motions requires perturbation of controllable parameters in self-propelled particles. However, controlling parameters in animals is generally not easy, which makes collective behaviours of…

Biological Physics · Physics 2019-01-31 Takuma Sugi , Hiroshi Ito , Masaki Nishimura , Ken H. Nagai