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Computational models of neurodegeneration aim to emulate the evolving pattern of pathology in the brain during neurodegenerative disease, such as Alzheimer's disease. Previous studies have made specific choices on the mechanisms of…

Understanding how monomeric proteins fold under in vitro conditions is crucial to describing their functions in the cellular context. Significant advances both in theory and experiments have resulted in a conceptual framework for describing…

软凝聚态物质 · 物理学 2010-07-20 D. Thirumalai , Edward P. O'Brien , Greg Morrison , Changbong Hyeon

In living cells, protein-rich condensates can wet the cell membrane and surfaces of membrane-bound organelles. Interestingly, many phase-separating proteins also bind to membranes leading to a molecular layer of bound molecules. Here we…

生物物理 · 物理学 2022-03-22 Xueping Zhao , Giacomo Bartolucci , Alf Honigmann , Frank Jülicher , Christoph A. Weber

Certain sequences of peptoid polymers (synthetic analogs of peptides) assemble into bilayer nanosheets via a nonequilibrium assembly pathway of adsorption, compression, and collapse at an air-water interface. As with other large-scale…

生物物理 · 物理学 2014-10-01 Thomas K. Haxton , Ranjan V. Mannige , Ronald N. Zuckermann , Stephen Whitelam

Central to understanding membrane bound cell signaling is to quantify how the membrane ultra-structure consisting of transient spatial domains modulates signaling and how the signaling influences this ultra-structure. Yet, measuring the…

生物物理 · 物理学 2011-01-27 Heng Huang , Arnd Pralle

Linear bio-molecular motors move unidirectionally along a track by coordinating several different processes, such as fuel (ATP) capture, hydrolysis, conformational changes, binding and unbinding from a track, and center-of-mass diffusion. A…

统计力学 · 物理学 2015-05-18 Nathan J. Kuwada , Gerhard A. Blab , Heiner Linke

We propose an energy-based model (EBM) of protein conformations that operates at atomic scale. The model is trained solely on crystallized protein data. By contrast, existing approaches for scoring conformations use energy functions that…

机器学习 · 计算机科学 2020-04-29 Yilun Du , Joshua Meier , Jerry Ma , Rob Fergus , Alexander Rives

In this review paper, some applications of the mixed effect modeling in medial image processing and longitudinal analysis is studied. For this purpose, a general structure is extracted from some of the researches in the literature. This…

医学物理 · 物理学 2018-03-13 Fatemeh Nasiri , Oscar Acosta-Tamayo

We employ a recently developed coarse-grained model for peptides and proteins where the effect of pH is automatically included. We explore the effect of pH in the aggregation process of the amyloidogenic peptide KTVIIE and two related…

生物物理 · 物理学 2015-12-10 Marta Enciso , Christof Schuette , Luigi Delle Site

Alzheimer's disease (AD) is an age-specific neurodegenerative disease that compromises cognitive functioning and impacts the quality of life of an individual. Pathologically, AD is characterised by abnormal accumulation of beta-amyloid…

亚细胞过程 · 定量生物学 2020-05-29 Alok Joshi , Da-Hui Wang , Steven Watterson , Paula L. McClean , Chandan K. Behera , Trevor Sharp , KongFatt Wong-Lin

Joint models for longitudinal and time-to-event data are commonly used in longitudinal studies to forecast disease trajectories over time. Despite the many advantages of joint modeling, the standard forms suffer from limitations that arise…

机器学习 · 统计学 2018-07-10 Bryan Lim , Mihaela van der Schaar

Alzheimer's disease (AD) is the most prevalent form of dementia, and its early diagnosis is essential for slowing disease progression. Recent studies on multimodal neuroimaging fusion using MRI and PET have achieved promising results by…

计算机视觉与模式识别 · 计算机科学 2025-11-05 Delin Ma , Menghui Zhou , Jun Qi , Yun Yang , Po Yang

We formulate a cell-scale model for the degradation of the extra-cellular matrix by membrane-bound and soluble matrix degrading enzymes produced by cancer cells. Based on the microscopic model and using tools from the theory of…

偏微分方程分析 · 数学 2025-09-17 Mariya Ptashnyk , Chandrasekhar Venkataraman

Using analytical calculations and computer simulations we consider both the lateral diffusion of a membrane protein and the fluctuation spectrum of the membrane in which the protein is embedded. The membrane protein interacts with the…

软凝聚态物质 · 物理学 2015-05-18 Ellen Reister-Gottfried , Stefan M. Leitenberger , Udo Seifert

Biomolecular condensates play essential roles in cellular processes, and recent efforts have focused on understanding their assembly and rational design principles. In this study, we have employed an explicit-solvent minimal statistical…

软凝聚态物质 · 物理学 2026-05-26 Siddhartha Roy , Rakesh S. Singh

Machine learning, and representation learning in particular, has the potential to facilitate drug discovery by screening a large chemical space in silico. A successful approach for representing molecules is to treat them as a graph and…

化学物理 · 物理学 2023-10-06 Ronen Taub , Yonatan Savir

Alzheimer's disease (AD) is a complex, progressive neurodegenerative disorder characterized by extracellular A\b{eta} plaques, neurofibrillary tau tangles, glial activation, and neuronal degeneration, involving multiple cell types and…

机器学习 · 计算机科学 2024-11-19 Anya Chauhan , Ayush Noori , Zhaozhi Li , Yingnan He , Michelle M Li , Marinka Zitnik , Sudeshna Das

The adsorption of a single multi-block $AB$-copolymer on a solid planar substrate is investigated by means of computer simulations and scaling analysis. It is shown that the problem can be mapped onto an effective homopolymer adsorption…

We model membrane proteins as anisotropic objects characterized by symmetric-traceless tensors and determine the coupling between these order-parameters and membrane curvature. We consider the interactions between transmembrane proteins…

凝聚态物理 · 物理学 2009-10-28 Jeong-Man Park , T. C. Lubensky

Alzheimer's disease (AD) is a complex neurodegenerative disorder characterized by the accumulation of amyloid-beta (A$\beta$) and phosphorylated tau (p-tau) proteins, leading to cognitive decline measured by the Alzheimer's Disease…

神经元与认知 · 定量生物学 2025-04-21 Swadesh Pal , Roderick Melnik