Results 21 to 30 of about 408,119 (206)

The Proportion of Chromatin Graded between Closed and Open States Determines the Level of Transcripts Derived from Distinct Promoters in the CYP19 Gene. [PDF]

open access: yesPLoS ONE, 2015
The human CYP19 gene encodes aromatase, which converts androgens to estrogens. CYP19 mRNA variants are transcribed mainly from three promoters. Quantitative RT-PCR was used to measure the relative amounts of each of the three transcripts and determine ...
Naoe Kotomura   +2 more
doaj   +1 more source

Extracting physical characteristics of higher-order chromatin structures from 3D image data

open access: yesComputational and Structural Biotechnology Journal, 2022
Higher-order chromatin structures have functional impacts on gene regulation and cell identity determination. Using high-throughput sequencing (HTS)-based methods like Hi-C, active or inactive compartments and open or closed topologically associating ...
William Franz Lamberti, Chongzhi Zang
doaj   +1 more source

Detecting Differential Transcription Factor Activity from ATAC-Seq Data

open access: yesMolecules, 2018
Transcription factors are managers of the cellular factory, and key components to many diseases. Many non-coding single nucleotide polymorphisms affect transcription factors, either by directly altering the protein or its functional activity at ...
Ignacio J. Tripodi   +2 more
doaj   +1 more source

Mapping and Dynamics of Regulatory DNA in Maturing Arabidopsis thaliana Siliques

open access: yesFrontiers in Plant Science, 2019
The genome is reprogrammed during development to produce diverse cell types, largely through altered expression and activity of key transcription factors.
Alessandra M. Sullivan   +15 more
doaj   +1 more source

Epigenetic modifications unlock the milk protein gene loci during mouse mammary gland development and differentiation. [PDF]

open access: yesPLoS ONE, 2013
Unlike other tissues, development and differentiation of the mammary gland occur mostly after birth. The roles of systemic hormones and local growth factors important for this development and functional differentiation are well-studied. In other tissues,
Monique Rijnkels   +6 more
doaj   +1 more source

Chromatin Accessibility Impacts Transcriptional Reprogramming in Oocytes

open access: yesCell Reports, 2018
Summary: Oocytes have a remarkable ability to reactivate silenced genes in somatic cells. However, it is not clear how the chromatin architecture of somatic cells affects this transcriptional reprogramming.
Kei Miyamoto   +9 more
doaj   +1 more source

Dissecting the binding mechanisms of transcription factors to DNA using a statistical thermodynamics framework

open access: yesComputational and Structural Biotechnology Journal, 2020
Transcription Factors (TFs) bind to DNA and control activity of target genes. Here, we present ChIPanalyser, a user-friendly, versatile and powerful R/Bioconductor package predicting and modelling the binding of TFs to DNA.
Patrick C.N. Martin, Nicolae Radu Zabet
doaj   +1 more source

OCEAN-C: mapping hubs of open chromatin interactions across the genome reveals gene regulatory networks

open access: yesGenome Biology, 2018
We develop a method called open chromatin enrichment and network Hi-C (OCEAN-C) for antibody-independent mapping of global open chromatin interactions. By integrating FAIRE-seq and Hi-C, OCEAN-C detects open chromatin interactions enriched by active cis ...
Tingting Li   +4 more
doaj   +1 more source

Genome-wide MNase hypersensitivity assay unveils distinct classes of open chromatin associated with H3K27me3 and DNA methylation in Arabidopsis thaliana

open access: yesGenome Biology, 2020
Background Regulation of transcription depends on interactions between cis-regulatory elements (CREs) and regulatory proteins. Active CREs are imbedded in open chromatin that are accessible to nucleases.
Hainan Zhao   +6 more
doaj   +1 more source

Genetic landscape of open chromatin in yeast. [PDF]

open access: yesPLoS Genetics, 2013
Chromatin regulation underlies a variety of DNA metabolism processes, including transcription, recombination, repair, and replication. To perform a quantitative genetic analysis of chromatin accessibility, we obtained open chromatin profiles across 96 ...
Kibaick Lee   +10 more
doaj   +1 more source

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