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The interaction between proteins and DNA is a key driving force in a significant number of biological processes such as transcriptional regulation, repair, recombination, splicing, and DNA modification. The identification of DNA-binding…

定量方法 · 定量生物学 2017-05-10 Hamid Reza Hassanzadeh , Pushkar Kolhe , Charles L. Isbell , May D. Wang

Genomic expression depends critically both on the ability of regulatory proteins to locate specific target sites on a DNA within seconds and on the formation of long lived (many minutes) complexes between these proteins and the DNA.…

软凝聚态物质 · 物理学 2011-08-23 O. Bénichou , Y. Kafri , M. Sheinman , R. Voituriez

The problem of motif detection can be formulated as the construction of a discriminant function to separate sequences of a specific pattern from background. In computational biology, motif detection is used to predict DNA binding sites of a…

基因组学 · 定量生物学 2010-12-10 Qing Zhou

The problem of detecting a binding site -- a substring of DNA where transcription factors attach -- on a long DNA sequence requires the recognition of a small pattern in a large background. For short binding sites, the matching probability…

基因组学 · 定量生物学 2009-11-13 Daniela Bianchi , Brunello Tirozzi

Transcription factor binding to the surface of DNA regulatory regions is one of the primary causes of regulating gene expression levels. A probabilistic approach to model protein-DNA interactions at the sequence level is through Position…

生物物理 · 物理学 2015-11-18 Jacob Clifford , Christoph Adami

Scoring DNA sequences against Position Weight Matrices (PWMs) is a widely adopted method to identify putative transcription factor binding sites. While common bioinformatics tools produce scores that can reflect the binding strength between…

基因组学 · 定量生物学 2015-03-18 Xiaoyan Ma , Daphne Ezer , Carmen Navarro , Boris Adryan

We present ensemble methods in a machine learning (ML) framework combining predictions from five known motif/binding site exploration algorithms. For a given TF the ensemble starts with position weight matrices (PWM's) for the motif,…

基因组学 · 定量生物学 2018-05-11 Yue Fan , Mark Kon , Charles DeLisi

Artificial synthesis of DNA molecules is an essential part of the study of biological mechanisms. The design of a synthetic DNA molecule usually involves many objectives. One of the important objectives is to eliminate short sequence…

生物大分子 · 定量生物学 2021-08-13 Zehavit Leibovich , Ilan Gronau

We present a simple and efficient method for prediction of transcription factor binding sites from DNA sequence. Our method computes a random approximation of a convolutional kernel feature map from DNA sequence and then learns a linear…

基因组学 · 定量生物学 2017-06-02 Alyssa Morrow , Vaishaal Shankar , Devin Petersohn , Anthony Joseph , Benjamin Recht , Nir Yosef

Deep neural networks excel in mapping genomic DNA sequences to associated readouts (e.g., protein-DNA binding). Beyond prediction, the goal of these networks is to reveal to scientists the underlying motifs (and their syntax) which drive…

基因组学 · 定量生物学 2024-10-10 Alex M. Tseng , Gokcen Eraslan , Tommaso Biancalani , Gabriele Scalia

The regulation of a gene depends on the binding of transcription factors to specific sites located in the regulatory region of the gene. The generation of these binding sites and of cooperativity between them are essential building blocks…

统计力学 · 物理学 2007-05-23 Johannes Berg , Stana Willmann , Michael Lässig

When analyzing the genome, researchers have discovered that proteins bind to DNA based on certain patterns of the DNA sequence known as "motifs". However, it is difficult to manually construct motifs due to their complexity. Recently,…

机器学习 · 计算机科学 2017-02-23 Jack Lanchantin , Ritambhara Singh , Yanjun Qi

The nucleotide sequence representation of DNA can be inadequate for resolving protein-DNA binding sites and regulatory substrates, such as those involved in gene expression and horizontal gene transfer. Considering that sequence-like…

基因组学 · 定量生物学 2020-07-30 Jan Zrimec

We provide an overview of current approaches to DNA-based storage system design and accompanying synthesis, sequencing and editing methods. We also introduce and analyze a suite of new constrained coding schemes for both archival and random…

The most common gene regulation mechanism is when a protein binds to a regulatory sequence to change RNA transcription. However, these sequences are short relative to the genome length, so finding them poses a challenging search problem.…

统计力学 · 物理学 2024-04-29 Lucas Hedström , Ludvig Lizana

Genome-wide experiments to map the DNA-binding locations of transcription-associated factors (TFs) have shown that the number of genes bound by a TF far exceeds the number of possible direct target genes. Distinguishing functional from…

基因组学 · 定量生物学 2022-11-29 Christopher J. Banks , Anagha Joshi , Tom Michoel

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

Multiplex and multi-directional control of metabolic pathways is crucial for metabolic engineering to improve product yield of fuels, chemicals, and pharmaceuticals. To achieve this goal, artificial transcriptional regulators such as…

生物大分子 · 定量生物学 2017-04-12 Jiayuan Sheng , Weihua Guo , Christine Ash , Brendan Freitas , Mitchell Paoletti , Xueyang Feng

The mutation and selection of regulatory DNA sequences is presented as an ideal model system of molecular evolution where genotype, phenotype, and fitness can be explicitly and independently characterized. In this theoretical study, we…

生物物理 · 物理学 2007-05-23 Ulrich Gerland , Terence Hwa

MotifbreakR is a software tool that scans genetic variants against position weight matrices of transcription factors (TF) to determine the potential for the disruption of TF binding at the site of the variant. It leverages the Bioconductor…

基因组学 · 定量生物学 2024-07-08 Simon G. Coetzee , Dennis J. Hazelett
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