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相关论文: On the structure of RNA branching polytopes

200 篇论文

Atomic-accuracy structure prediction of macromolecules is a long-sought goal of computational biophysics. Accurate modeling should be achievable by optimizing a physically realistic energy function but is presently precluded by incomplete…

生物大分子 · 定量生物学 2011-04-29 Parin Sripakdeevong , Wipapat Kladwang , Rhiju Das

We describe quantitatively a RNA molecule under the influence of an external force exerted at its two ends as in a typical single-molecule experiment. Our calculation incorporates the interactions between nucleotides by using the…

软凝聚态物质 · 物理学 2009-11-07 Ulrich Gerland , Ralf Bundschuh , Terence Hwa

Concepts from information geometry are used to analyse parameter sensitivity for a nuclear energy density functional, representative of a class of semi-empirical functionals that start from a microscopically motivated ansatz for the density…

核理论 · 物理学 2016-08-29 Tamara Niksic , Dario Vretenar

In this paper we analyze the length-spectrum of blocks in $\gamma$-structures. $\gamma$-structures are a class of RNA pseudoknot structures that plays a key role in the context of polynomial time RNA folding. A $\gamma$-structure is…

组合数学 · 数学 2018-06-13 Thomas J. X. Li , Christina S. Burris , Christian M. Reidys

We obtain structure theorems for graphs excluding a fan (a path with a universal vertex) or a dipole ($K_{2,k}$) as a topological minor. The corresponding decompositions can be computed in FPT linear time. This is motivated by the study of…

离散数学 · 计算机科学 2025-02-18 Hugo Jacob , William Lochet , Christophe Paul

We introduce a model of thermalized conformations in space of RNA -or single stranded DNA- molecules, which includes the possibility of hairpin formation. This model contains the usual secondary structure information, but extends it to the…

软凝聚态物质 · 物理学 2007-05-23 Andrea Montanari , Marc Mezard

We propose a nested reduced-rank regression (NRRR) approach in fitting regression model with multivariate functional responses and predictors, to achieve tailored dimension reduction and facilitate interpretation/visualization of the…

统计方法学 · 统计学 2020-03-11 Xiaokang Liu , Shujie Ma , Kun Chen

We use ab initio pseudopotential total energy calculations with a plane wave basis set to investigate the structural energetics of various phases of polymorphic NbN. Particular attention is given to its recently discovered superconducting…

mtrl-th · 物理学 2015-06-26 S. Ogut , K. M. Rabe

In post-transcriptional regulation, an mRNA molecule is bound by many proteins and/or miRNAs to modulate its function. To enable combinatorial gene regulation, these binding partners of an RNA must communicate with each other, exhibiting…

生物大分子 · 定量生物学 2015-01-26 Yi-Hsuan Lin , Ralf Bundschuh

Due to the hierarchical organization of RNA structures and their pivotal roles in fulfilling RNA functions, the formation of RNA secondary structure critically influences many biological processes and has thus been a crucial research topic.…

We introduce a method for predicting RNA folding pathways, with an application to the most important RNA tetraloops. The method is based on the idea that ensembles of three-dimensional fragments extracted from high-resolution crystal…

生物大分子 · 定量生物学 2016-11-21 Sandro Bottaro , Alejandro Gil-Ley , Giovanni Bussi

Standard neural network architectures are non-linear only by virtue of a simple element-wise activation function, making them both brittle and excessively large. In this paper, we consider methods for making the feed-forward layer more…

机器学习 · 计算机科学 2018-11-26 Sebastian Flennerhag , Hujun Yin , John Keane , Mark Elliot

Structural prediction has long been considered critical in RNA research, especially following the success of AlphaFold2 in protein studies, which has drawn significant attention to the field. While recent advances in machine learning and…

生物大分子 · 定量生物学 2024-09-26 Jiaxing Yang

We consider the inverse-folding problem for RNA secondary structures: for a given (pseudo-knot-free) secondary structure find a sequence that has that structure as its ground state. If such a sequence exists, the structure is called…

生物物理 · 物理学 2015-06-26 Bernd Burghardt , Alexander K. Hartmann

It is the first step for understanding how RNA structure folds from base sequences that to know how its secondary structure is formed. Traditional energy-based algorithms are short of precision, particularly for non-nested sequences, while…

量子物理 · 物理学 2023-05-18 Ji Jiang , Qipeng Yan , Ye Li , Min Lu , Ziwei Cui , Menghan Dou , Qingchun Wang , Yu-Chun Wu , Guo-Ping Guo

Unified understanding of neuro networks (NNs) gets the users into great trouble because they have been puzzled by what kind of rules should be obeyed to optimize the internal structure of NNs. Considering the potential capability of random…

机器学习 · 计算机科学 2022-01-03 Ruiqi Mao , Rongxin Cui

We present McGenus, an algorithm to predict RNA secondary structures with pseudoknots. The method is based on a classification of RNA structures according to their topological genus. McGenus can treat sequences of up to 1000 bases and…

生物大分子 · 定量生物学 2013-02-18 M. Bon , C. Micheletti , H. Orland

We suggest a new mean field method for studying the thermodynamic competition between magnetic and superconducting phases in a two-dimensional square lattice. A partition function is constructed by writing microscopic interactions that…

超导电性 · 物理学 2009-11-13 Benoit Vanderheyden , A D Jackson

This contribution focuses on the fascinating RNA molecule, its sequence-dependent folding driven by base-pairing interactions, the interplay between these interactions and natural evolution, and its multiple regulatory roles. The four of us…

统计力学 · 物理学 2022-07-28 Simona Cocco , Andrea De Martino , Andrea Pagnani , Martin Weigt

The field of complex self-assembly is moving toward the design of multi-particle structures consisting of thousands of distinct building blocks. To exploit the potential benefits of structures with such `addressable complexity,' we need to…

软凝聚态物质 · 物理学 2015-06-02 William M. Jacobs , Aleks Reinhardt , Daan Frenkel