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Dynamics of nucleosomes, the building blocks of the chromatin, has crucial effects on expression, replication and repair of genomes in eukaryotes. Beside constant movements of nucleosomes by thermal fluctuations, ATP-dependent chromatin…

Biomolecules · Quantitative Biology 2020-01-28 Fatemeh Khodabandeh , Hashem Fatemi , Farshid Mohammad-Rafiee1

We showed in our previous studies that just $3\%$ cross-links, at special points along the contour of the bacterial DNA help the DNA-polymer to get organized at micron length scales \cite{jpcm,epl}. In this work, we investigate how does the…

Soft Condensed Matter · Physics 2019-05-01 Tejal Agarwal , G. P. Manjunath , Farhat Habib , Apratim Chatterji

The patterns observed on the body surface of living organisms have traditionally been attributed solely to ecological strategies. However, this study investigates a fascinating phenomenon in Pelodiscus sinensis, where patterns formed on the…

Biological Physics · Physics 2024-04-30 Shin Nishihara , Toru Ohira

Layered materials (LMs) such as graphene or MoS$_2$ have recently attracted a great deal of interest. These materials offer unique functionalities due to their structural anisotropy characterized by weak van der Waals bonds along the…

Applied Physics · Physics 2019-12-13 M. O. Cichocka , M. Bolhuis , S. E. van Heijst , S. Conesa-Boj

A transfer matrix approach is used to study the electronic transport in graphene superlattices with long-range correlated barrier spacements. By considering the low-energy electronic excitations as massless Dirac fermions, we compute by…

Mesoscale and Nanoscale Physics · Physics 2020-05-22 Anderson L. R. Barbosa , Jonas R. F. Lima , Ícaro S. F. Bezerra , Marcelo L. Lyra

Gene expression is a complex and quantitative trait that is influenced by both genetic and non-genetic regulators including environmental factors. Evaluating the contribution of environment to gene expression regulation and identifying…

Genomics · Quantitative Biology 2019-06-27 Ke Tang , Wei Zhang

Chromatin remodeling machineries are abundant and diverse in eukaryotic cells. They have been involved in a variety of situations such as histone exchange and DNA repair, but their importance in gene expression remains unclear. Although the…

Molecular Networks · Quantitative Biology 2015-09-25 Denis Michel

The elastic scattering of twisted electrons by diatomic molecules is studied within the framework of the non-relativistic first Born approximation. In this process, the coherent interaction of incident electrons with two molecular centers…

Atomic Physics · Physics 2018-10-17 A. V. Maiorova , S. Fritzsche , R. A. Mueller , A. Surzhykov

The linear-combination of fragment molecular orbitals with three-body correction (FMO3-LCMO) is examined for electron transfer (ET) coupling matrix elements and ET pathway analysis, with application to hole transfer between two triptophanes…

Chemical Physics · Physics 2016-10-19 Hirotaka Kitoh-Nishioka , Koji Ando

Characterizing the link between small-scale chromatin structure and large-scale chromosome folding during interphase is a prerequisite for understanding transcription. Yet, this link remains poorly investigated. Here, we introduce a simple…

Soft Condensed Matter · Physics 2016-09-28 Ana Maria Florescu , Pierre Therizols , Angelo Rosa

Condensation of hundreds of mega-base-pair-long human chromosomes in a small nuclear volume is a spectacular phenomenon. This process is driven by the formation of chromosome loops. ATP consuming motor, condensin, interacts with chromatin…

Soft Condensed Matter · Physics 2021-10-27 Ryota Takaki , Atreya Dey , Guang Shi , Dave Thirumalai

We examine the ordering behavior of hard plate-like particle in a very narrow slit-like pore using the Parsons-Lee density functional theory and the restricted orientation approximation. We observe that the plates are orientationally…

Soft Condensed Matter · Physics 2019-09-24 Sakine Mizani , Roohollah Aliabadi , Hamdollah Salehi , Szabolcs Varga

Essential life processes take place across multiple space and time scales in living organisms but understanding their mechanistic interactions remains an ongoing challenge. Advanced multiscale modeling techniques are providing new…

Molecular Networks · Quantitative Biology 2025-04-08 Achal Mahajan , Erik J. Navarro , William Poole , Carlos F Lopez

This paper deals with the relations among structural, topological, and chemical properties of the E.Coli proteome from the vantage point of the solubility/aggregation propensity of proteins. Each E.Coli protein is initially represented…

Data Analysis, Statistics and Probability · Physics 2015-11-17 Lorenzo Livi , Alessandro Giuliani , Alireza Sadeghian

We use Brownian dynamics simulations to study the formation of chromatin loops through diffusive sliding of slip-link-like proteins, mimicking the behaviour of cohesin molecules. We recently proposed that diffusive sliding is sufficient to…

Soft Condensed Matter · Physics 2020-11-02 Andrea Bonato , Chris A. Brackley , James Johnson , Davide Michieletto , Davide Marenduzzo

The principles underlying the architectural landscape of chromatin beyond the nucleosome level in living cells remains largely unknown despite its potential to play a role in mammalian gene regulation. We investigated the 3-dimensional…

Genomics · Quantitative Biology 2012-06-27 Ivan Junier , Ryan Dale , Chunhui Hou , François Képès , Ann Dean

Understanding the nature of the interface between a biomaterial implant and the biological fluid is an essential step towards creating improved implant materials. This study examined a diamond-like carbon coating biomaterial, the surface…

Materials Science · Physics 2016-11-16 Reece N. Oosterbeek , Christopher K. Seal , Margaret M. Hyland

Electron and hole separate-path transport is theoretically found in the pi-stacked organic layers and columns. This effect might be a solution for the charge recombination problem. The building molecules, named…

Materials Science · Physics 2016-05-13 Malgorzata Wawrzyniak-Adamczewska , Malgorzata Wierzbowska

Laser writing with ultrashort pulses provides a potential route for the manufacture of three-dimensional wires, waveguides and defects within diamond. We present a transmission electron microscopy (TEM) study of the intrinsic structure of…

The baseline level of transcription, which is variable and difficult to quantify, seriously complicates the normalization of comparative transcriptomic data, but its biological importance remains unappreciated. We show that this currently…

Molecular Networks · Quantitative Biology 2022-07-26 Gilles Flouriot , Charly Jehanno , Yann Le Page , Pascale Le Goff , Benjamin Boutin , Denis Michel