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The identification of transcription factor binding sites (TFBSs) on genomic DNA is of crucial importance for understanding and predicting regulatory elements in gene networks. TFBS motifs are commonly described by Position Weight Matrices…

基因组学 · 定量生物学 2015-04-28 Marc Santolini , Thierry Mora , Vincent Hakim

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

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

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

The speed of site-specific binding of transcription factor (TFs) proteins with genomic DNA seems to be strongly retarded by the randomly occurring sequence traps. Traps are those DNA sequences sharing significant similarity with the…

亚细胞过程 · 定量生物学 2016-07-22 G. Niranjani , R. Murugan

We developed a method for estimating the positional distribution of transcription fac-tor (TF) binding sites using ChIP-chip data, and applied it to recently published experiments on binding sites of nine TFs; OCT4, SOX2, NANOG, HNF1A,…

分子网络 · 定量生物学 2008-11-11 Mark Koudritsky , Eytan Domany

Evolution of gene regulation is crucial for our understanding of the phenotypic differences between species, populations and individuals. Sequence-specific binding of transcription factors to the regulatory regions on the DNA is a key…

种群与进化 · 定量生物学 2015-11-09 Murat Tuğrul , Tiago Paixão , Nicholas H. Barton , Gašper Tkačik

We introduce a novel method to screen the promoters of a set of genes with shared biological function, against a precompiled library of motifs, and find those motifs which are statistically over-represented in the gene set. The gene sets…

One goal of human genetics is to understand how the information for precise and dynamic gene expression programs is encoded in the genome. The interactions of transcription factors (TFs) with DNA regulatory elements clearly play an…

基因组学 · 定量生物学 2014-04-15 Darren A. Cusanovich , Bryan Pavlovic , Jonathan K. Pritchard , Yoav Gilad

The binding of transcription factors (TFs) is essential for gene expression. One important characteristic is the actual occupancy of a putative binding site in the genome. In this study, we propose an analytical model to predict genomic…

定量方法 · 定量生物学 2015-01-14 Nicolae Radu Zabet , Boris Adryan

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

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 factors (TFs) regulate gene expression through complex and co-operative mechanisms. While many TFs act together, the logic underlying TFs binding and their interactions is not fully understood yet. Most current approaches for…

机器学习 · 计算机科学 2026-03-13 Pietro Demurtas , Ferdinando Zanchetta , Giovanni Perini , Rita Fioresi

In computational molecular biology, gene regulatory binding sites prediction in whole genome remains a challenge for the researchers. Now a days, the genome wide regulatory binding site prediction tools required either direct pattern…

基因组学 · 定量生物学 2010-02-06 Chandra Prakash Singh , Feroz Khan , Sanjay Kumar Singh , Durg Singh Chauhan

We develop revised theoretical ideas on the mechanism by which the transcription factor proteins locate their specific binding sites on DNA faster than the three-dimensional (3D) diffusion controlled rate limit. We demonstrate that the…

生物物理 · 物理学 2014-09-22 Rajamanickam Murugan

Multi-sample microarray experiments have become a standard experimental method for studying biological systems. A frequent goal in such studies is to unravel the regulatory relationships between genes. During the last few years, regression…

应用统计 · 统计学 2008-12-18 Nancy R. Zhang , Mary C. Wildermuth , Terence P. Speed

The binding of a transcription factor (TF) to a DNA operator site can initiate or repress the expression of a gene. Computational prediction of sites recognized by a TF has traditionally relied upon knowledge of several cognate sites,…

生物大分子 · 定量生物学 2008-11-10 Sahand Jamal Rahi , Peter Virnau , Leonid A. Mirny , Mehran Kardar

Transcription factors (TFs) are regulatory proteins that bind DNA in promoter regions of the genome and either promote or repress gene expression. Here we predict analytically that enhanced homo-oligonucleotide sequence correlations, such…

生物大分子 · 定量生物学 2011-11-15 Itamar Sela , David B. Lukatsky

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

Much of the complexity observed in gene regulation originates from cooperative protein-DNA binding. While studies of the target search of proteins for their specific binding sites on the DNA have revealed design principles for the…

生物大分子 · 定量生物学 2015-05-30 Nico Geisel , Ulrich Gerland
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