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A compiled and systematic reference map of nucleosome positions across the Saccharomyces cerevisiae genome

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TLDR
Six high-resolution genome-wide maps of Saccharomyces cerevisiae nucleosome positions from multiple labs and detection platforms are compiled, and new insights are reported.
Abstract
Nucleosomes have position-specific functions in controlling gene expression. A complete systematic genome-wide reference map of absolute and relative nucleosome positions is needed to minimize potential confusion when referring to the function of individual nucleosomes (or nucleosome-free regions) across datasets. We compiled six high-resolution genome-wide maps of Saccharomyces cerevisiae nucleosome positions from multiple labs and detection platforms, and report new insights. Data downloads, reference position assignment software, queries, and a visualization browser are available online http://atlas.bx.psu.edu/.

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H2B ubiquitylation is part of chromatin architecture that marks exon-intron structure in budding yeast

TL;DR: Evidence that H2B monoubiquitylation (H2BK123ub1) marks introns in Saccharomyces cerevisiae is provided and data suggest that H1N1 facilitates cross talk between chromatin and pre-mRNA splicing by modulating the distribution of intronic and exonic histone modifications.
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Design principles for nuclease-deficient CRISPR-based transcriptional regulators.

TL;DR: This review should be of general interest for experimentalists to get familiarised with the parameters underlying the power of reprogramming genomic functions by use of nuclease-deficient CRISPR technologies.
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A high‐throughput ChIP‐Seq for large‐scale chromatin studies

TL;DR: The results show that Bar‐ChIP enables biological discovery through rapid chromatin profiling at single‐nucleosome resolution for various conditions and protein modifications at once.
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Chromatin-dependent and -independent regulation of DNA replication origin activation in budding yeast

TL;DR: These results show that genuinely late‐replicating parts of the genome can be converted into early-replicating loci by insertion of a chromatin‐independent early replication origin, ARS607, whereas insertion of two Forkhead‐binding sites is not sufficient for conversion.
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Regulation of tRNA gene transcription by the chromatin structure and nucleosome dynamics.

TL;DR: The chromatin structure around the pol III-transcribed genes provides a context conducive for steady-state transcription as well as gene-specific transcriptional regulation upon signaling from the environmental cues.
References
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Journal ArticleDOI

Crystal structure of the nucleosome core particle at 2.8 Å resolution

TL;DR: The X-ray crystal structure of the nucleosome core particle of chromatin shows in atomic detail how the histone protein octamer is assembled and how 146 base pairs of DNA are organized into a superhelix around it.
Journal ArticleDOI

Twenty-Five Years of the Nucleosome, Fundamental Particle of the Eukaryote Chromosome

TL;DR: The chromatin field needs much more information about structure beyond the nucleosome, and there is insufficient evidence that acetylation actually causes chromatin unfolding, and functional analysis in cell-free systems must be extended beyond theucleosome to the chromosomal context.
Journal ArticleDOI

Dynamic Regulation of Nucleosome Positioning in the Human Genome

TL;DR: It is found that nucleosome phasing relative to the transcription start sites is directly correlated to RNA polymerase II (Pol II) binding and the first nucleosomes downstream of a start site exhibits differential positioning in active and silent genes.
Journal ArticleDOI

The structure of DNA in the nucleosome core

TL;DR: Comparison of the 147-base-pair structure with two 146- base-pair structures reveals alterations in DNA twist that are evidently common in bulk chromatin, and which are of probable importance for chromatin fibre formation and chromatin remodelling.
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