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The folding of a protein towards its native state is a rather complicated process. However there are empirical evidences that the folding time correlates with the contact order, a simple measure of the spatial organisation of the native…

软凝聚态物质 · 物理学 2017-12-06 Marco Baiesi , Enzo Orlandini , Flavio Seno , Antonio Trovato

Autoencoders (AE) provide a useful method for nonlinear dimensionality reduction but are ill-suited for low data regimes. Conversely, Principal Component Analysis (PCA) is data-efficient but is limited to linear dimensionality reduction,…

Genotypic fitness landscapes are constructed by assessing the fitness of all possible combinations of a given number of mutations. In the last years, several experimental fitness landscapes have been completely resolved. As fitness…

The simplest approximation of interaction potential between amino-acids in proteins is the contact potential, which defines the effective free energy of a protein conformation by a set of amino acid contacts formed in this conformation.…

生物大分子 · 定量生物学 2007-05-23 Jainab Kahtun , Sagar D. Khare , Nikolay V. Dokholyan

It is acknowledged that co-evolutionary nucleotide-nucleotide interactions are essential for RNA structures and functions. Currently, direct coupling analysis (DCA) infers nucleotide contacts in a sequence from its homologous sequence…

生物大分子 · 定量生物学 2017-11-30 Yiren Jian , Chen Zeng , Yunjie Zhao

Digital Subtraction Angiography (DSA) is a clinically significant imaging technique for diagnosing cerebrovascular disease, as gold-standard. However, the artifacts caused by motion of high-attenuation tissues such as bones, teeth, and…

图像与视频处理 · 电气工程与系统科学 2026-04-14 Rongjun Ge , Weilong Mao , Jian Lu , Rong Yan , Yikun Zhang , Peng Yuan , Jun Xiang , Hui Tang , Guanyu Yang , Yudong Zhang , Yang Chen , Shuo Li

We consider a spin-1/2 anisotropic XY model with time-dependent spin-spin coupling as means of creating long-distance entanglement. We predict the emergence of significant entanglement between the first and the last spin whenever the ac…

量子物理 · 物理学 2009-03-29 Fernando Galve , David Zueco , Sigmund Kohler , Eric Lutz , Peter Hänggi

Phase-amplitude coupling (PAC), a form of cross-frequency interaction, has been implicated in various cognitive functions and, by extension, in neural communication and information integration. Accurately detecting and characterising PAC is…

神经元与认知 · 定量生物学 2026-03-11 Rajintha Gunawardena , Fei He

Deep learning-based approaches, such as AlphaFold2 (AF2), have significantly advanced protein tertiary structure prediction, achieving results comparable to real biological experimental methods. While AF2 has shown limitations in predicting…

生物大分子 · 定量生物学 2025-01-23 Zhongju Yuan , Tao Shen , Sheng Xu , Leiye Yu , Ruobing Ren , Siqi Sun

It is widely recognized that the cleaving rate of a restriction enzyme on target DNA sequences is several orders of magnitude faster than the maximal one calculated from the diffusion--limited theory. It was therefore commonly assumed that…

亚细胞过程 · 定量生物学 2007-05-23 M. Coppey , O. Benichou , R. Voituriez , M. Moreau

A protein's function depends critically on its conformational ensemble, a collection of energy weighted structures whose balance depends on temperature and environment. Though recent deep learning (DL) methods have substantially advanced…

生物大分子 · 定量生物学 2026-01-09 Myeongsang Lee , Lauren L. Porter

Identifying interacting partners from two sets of protein sequences has important applications in computational biology. Interacting partners share similarities across species due to their common evolutionary history, and feature…

生物大分子 · 定量生物学 2024-12-31 Umberto Lupo , Damiano Sgarbossa , Martina Milighetti , Anne-Florence Bitbol

Adverse drug-drug interactions (DDIs) remain a leading cause of morbidity and mortality. Identifying potential DDIs during the drug design process is critical for patients and society. Although several computational models have been…

机器学习 · 计算机科学 2019-11-21 Kexin Huang , Cao Xiao , Trong Nghia Hoang , Lucas M. Glass , Jimeng Sun

Accurate prediction of protein-ligand binding affinity is crucial for rapid and efficient drug development. Recently, the importance of predicting binding affinity has led to increased attention on research that models the three-dimensional…

机器学习 · 计算机科学 2024-07-17 Seungyeon Choi , Sangmin Seo , Sanghyun Park

We discuss a stochastic approach for reconstructing the native structures of proteins from the knowledge of the "effective connectivity", which is a one-dimensional structural profile constructed as a linear combination of the eigenvectors…

生物物理 · 物理学 2009-01-20 Katrin Wolff , Michele Vendruscolo , Markus Porto

Biomolecular condensates undergirded by phase separations of proteins and nucleic acids serve crucial biological functions. To gain physical insights into their genetic basis, we study how liquid-liquid phase separation (LLPS) of…

生物大分子 · 定量生物学 2018-12-03 Suman Das , Alan Amin , Yi-Hsuan Lin , Hue Sun Chan

The evolutionary trajectory of a protein through sequence space is constrained by function and three-dimensional (3D) structure. Residues in spatial proximity tend to co-evolve, yet attempts to invert the evolutionary record to identify…

We present a new optimization-based method for atomistic-to-continuum (AtC) coupling. The main idea is to cast the coupling of the atomistic and continuum models as a constrained optimization problem with virtual Dirichlet controls on the…

数值分析 · 数学 2013-04-19 Derek Olson , Pavel Bochev , Mitchell Luskin , Alexander V. Shapeev

Although proteins have been recognized as small-world networks and their small-world network properties of clustering and short paths have been exploited computationally to produce biologically relevant information, they have not been truly…

分子网络 · 定量生物学 2017-06-20 Susan Khor

Direct Feedback Alignment (DFA) is emerging as an efficient and biologically plausible alternative to the ubiquitous backpropagation algorithm for training deep neural networks. Despite relying on random feedback weights for the backward…

机器学习 · 统计学 2021-06-11 Maria Refinetti , Stéphane d'Ascoli , Ruben Ohana , Sebastian Goldt
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