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/.read more
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References
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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.
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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.
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