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Journal ArticleDOI

Genome-wide nucleosome positioning during embryonic stem cell development

TLDR
Nucleosome-depleted regions around transcription start and transcription termination sites were broad and more pronounced for active genes, with distinct patterns for promoters classified according to CpG content or histone methylation marks.
Abstract
Tissue- and disease-specific features of nucleosome positioning have recently been reported. A new study set out to identify features of nucleosome positioning at functional genomic elements during lineage commitment from mouse embryonic stem cells to neural progenitors and embryonic fibroblasts. The results reveal regulatory mechanisms of cell differentiation that involve nucleosome positioning.

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Journal Article

The Genomic Code for Nucleosome Positioning

TL;DR: In this article, a nucleosome-DNA interaction model was proposed to predict the genome-wide organization of nucleosomes, and it was shown that genomes encode an intrinsic nucleosomal organization and that this intrinsic organization can explain ∼50% of the in-vivo positions.
Journal ArticleDOI

Targeted Degradation of CTCF Decouples Local Insulation of Chromosome Domains from Genomic Compartmentalization.

TL;DR: The data support that CTCF mediates transcriptional insulator function through enhancer blocking but not as a direct barrier to heterochromatin spreading, and provides new fundamental insights into the rules governing mammalian genome organization.
Journal ArticleDOI

Cell-free DNA Comprises an in Vivo Nucleosome Footprint that Informs Its Tissues-Of-Origin

TL;DR: Nucleosome spacing inferred from cfDNA in healthy individuals correlates most strongly with epigenetic features of lymphoid and myeloid cells, consistent with hematopoietic cell death as the normal source of cfDNA.
Journal ArticleDOI

Pioneer transcription factors target partial DNA motifs on nucleosomes to initiate reprogramming

TL;DR: This work compares the nucleosome and chromatin targeting activities of Oct4, Sox2, and Klf4, which together reprogram somatic cells to pluripotency and provides insight into how pioneer factors can target naive chromatin sites.
Journal ArticleDOI

Genomic profiling of DNA methyltransferases reveals a role for DNMT3B in genic methylation

TL;DR: Findings reveal how sequence and chromatin cues guide de novo methyltransferase activity to ensure methylome integrity.
References
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Journal ArticleDOI

Systematic and integrative analysis of large gene lists using DAVID bioinformatics resources.

TL;DR: By following this protocol, investigators are able to gain an in-depth understanding of the biological themes in lists of genes that are enriched in genome-scale studies.
Journal ArticleDOI

Ultrafast and memory-efficient alignment of short DNA sequences to the human genome

TL;DR: Bowtie extends previous Burrows-Wheeler techniques with a novel quality-aware backtracking algorithm that permits mismatches and can be used simultaneously to achieve even greater alignment speeds.
Journal ArticleDOI

Hierarchical Grouping to Optimize an Objective Function

TL;DR: In this paper, a procedure for forming hierarchical groups of mutually exclusive subsets, each of which has members that are maximally similar with respect to specified characteristics, is suggested for use in large-scale (n > 100) studies when a precise optimal solution for a specified number of groups is not practical.
Journal ArticleDOI

Differential expression analysis for sequence count data.

Simon Anders, +1 more
- 27 Oct 2010 - 
TL;DR: A method based on the negative binomial distribution, with variance and mean linked by local regression, is proposed and an implementation, DESeq, as an R/Bioconductor package is presented.
Journal ArticleDOI

Model-based Analysis of ChIP-Seq (MACS)

TL;DR: This work presents Model-based Analysis of ChIP-Seq data, MACS, which analyzes data generated by short read sequencers such as Solexa's Genome Analyzer, and uses a dynamic Poisson distribution to effectively capture local biases in the genome, allowing for more robust predictions.
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