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相关论文: Identifying 3D Genome Organization in Diploid Orga…

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The 3-dimensional (3D) structure of the genome is of significant importance for many cellular processes. In this paper, we study the problem of reconstructing the 3D structure of chromosomes from Hi-C data of diploid organisms, which poses…

基因组学 · 定量生物学 2024-05-30 Diego Cifuentes , Jan Draisma , Oskar Henriksson , Annachiara Korchmaros , Kaie Kubjas

Genome organization in eukaryotes during interphase stems from the delicate balance between non-random correlations present in the DNA polynucleotide linear sequence and the physico/chemical reactions which shape continuously the form and…

基因组学 · 定量生物学 2020-05-15 Alessandra Merlotti , Angelo Rosa , Daniel Remondini

Several processes in the cell, such as gene regulation, start when key proteins recognise and bind to short DNA sequences. However, as these sequences can be hundreds of million times shorter than the genome, they are hard to find by simple…

亚细胞过程 · 定量生物学 2021-01-27 Markus Nyberg , Tobias Ambjörnsson , Per Stenberg , and Ludvig Lizana

To better understand DNA's 3D folding in cell nuclei, researchers developed chromosome capture methods such as Hi-C that measure the contact frequencies between all DNA segment pairs across the genome. As Hi-C data sets often are massive,…

生物物理 · 物理学 2023-11-14 Anton Holmgren , Dolores Bernenko , Ludvig Lizana

The 3D organisation of the genome in interphase cells is not a randomly folded polymer. Rather, experiments show that chromosomes arrange into a network of 3D compartments that correlate with biological processes, such as transcription,…

生物物理 · 物理学 2018-11-06 Kumar Rajendra , Ludvig Lizana , Per Stenberg

This article considers the problem of 3-dimensional genome reconstruction for single-cell data, and the uniqueness of such reconstructions in the setting of haploid organisms. We consider multiple graph models as representations of this…

基因组学 · 定量生物学 2025-12-23 Sean Dewar , Georg Grasegger , Kaie Kubjas , Fatemeh Mohammadi , Anthony Nixon

Three-Dimensional (3D) chromatin interactions, such as enhancer-promoter interactions (EPIs), loops, Topologically Associating Domains (TADs), and A/B compartments play critical roles in a wide range of cellular processes by regulating gene…

基因组学 · 定量生物学 2024-03-07 Brydon P. G. Wall , My Nguyen , J. Chuck Harrell , Mikhail G. Dozmorov

Understanding the three-dimensional (3D) structure and stability of DNA is fundamental for its biological function and the design of novel drugs. In this study, we introduce an improved coarse-grained (CG) model, incorporating a more…

软凝聚态物质 · 物理学 2025-01-22 Xunxun Wang , Ya-Zhou Shi

Researchers developed chromosome capture methods such as Hi-C to better understand DNA's 3D folding in nuclei. The Hi-C method captures contact frequencies between DNA segment pairs across the genome. When analyzing Hi-C data sets, it is…

物理与社会 · 物理学 2023-11-14 Dolores Bernenko , Sang Hoon Lee , Ludvig Lizana

We consider the task of detecting regulatory elements in the human genome directly from raw DNA. Past work has focused on small snippets of DNA, making it difficult to model long-distance dependencies that arise from DNA's 3-dimensional…

基因组学 · 定量生物学 2017-10-04 Ankit Gupta , Alexander M. Rush

2D display is a fast and economical way of visualizing polymorphism and comparing genomes, which is based on the separation of DNA fragments in two steps, according first to their size and then to their sequence composition. In this paper,…

生物大分子 · 定量生物学 2009-10-29 Ana-Maria Florescu , Marc Joyeux , Benedicte Lafay

Several experiments show that the three dimensional (3D) organization of chromosomes affects genetic processes such as transcription and gene regulation. To better understand this connection, researchers developed the Hi-C method that is…

基因组学 · 定量生物学 2019-05-03 Sang Hoon Lee , Yeonghoon Kim , Sungmin Lee , Xavier Durang , Per Stenberg , Jae-Hyung Jeon , Ludvig Lizana

Timely up- or down-regulation of gene expression is crucial for cellular differentiation and function. While gene upregulation via transcriptional activators has been extensively investigated, gene silencing remains understudied, especially…

生物物理 · 物理学 2025-09-15 Massimiliano Semeraro , Giuseppe Negro , Davide Marenduzzo , Giada Forte

Accurate segmentation of 3-D cell nuclei in microscopy images is essential for the study of nuclear organization, gene expression, and cell morphodynamics. Current image segmentation methods are challenged by the complexity and variability…

图像与视频处理 · 电气工程与系统科学 2022-03-18 Sundaresh Ram , Jeffrey J. Rodriguez

Non-coding RNAs are ubiquitous, but the discovery of new RNA gene sequences far outpaces research on their structure and functional interactions. We mine the evolutionary sequence record to derive precise information about function and…

生物大分子 · 定量生物学 2016-04-22 Caleb Weinreb , Adam J. Riesselman , John B. Ingraham , Torsten Gross , Chris Sander , Debora S. Marks

It has been shown that genome spatial structures largely affect both genome activity and DNA function. Knowing this, many researchers are currently attempting to accurately model genome structures. Despite these increased efforts there…

基因组学 · 定量生物学 2015-07-24 Jackson Nowotny , Avery Wells , Lingfei Xu , Renzhi Cao , Tuan Trieu , Chenfeng He , Jianlin Cheng

Motivation: The three-dimensional (3D) organization of the genome plays a critical role in regulating gene expression and maintaining cellular homeostasis. Disruptions in this spatial organization can result in abnormal chromatin…

基因组学 · 定量生物学 2024-12-05 Minghao Jiang , Duohui Jing , Jason W. H. Wong

Nucleosome core particle is a dynamic structure -- DNA may transiently peel off the histone octamer surface due to thermal fluctuations or the action of chromatin remodeling enzymes. Partial DNA unwrapping enables easier access of…

基因组学 · 定量生物学 2018-10-17 Răzvan V. Chereji , Alexandre V. Morozov

Pairwise Euclidean distance calculation is a fundamental step in many machine learning and data analysis algorithms. In real-world applications, however, these distances are frequently distorted by heteroskedastic noise$\unicode{x2014}$a…

机器学习 · 统计学 2025-09-12 Keyi Li , Yuval Kluger , Boris Landa

Non protein coding regions of the human genome contain many complex patterns which regulate the cellular activity. Studying the human genome is limited by the lack of understanding of its features and their complex interactions. However,…

基因组学 · 定量生物学 2017-08-15 Kerim Arioglu , Umut Eser
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