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janelia7_blocks-janelia7_biblio_header | block
Methods in Molecular Biology . 2006;313:245-55
Isolation of yeast nuclei and micrococcal nuclease mapping of nucleosome positioning.
Zhang Z, Reese JC
Note: Research in this publication was not performed at Janelia.
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Abstract
Chromatin structure and nucleosome positioning play a crucial role in gene expression regulation. Nucleosome positioning is often inferred by the protection of underlying DNA to nucleases. Because nucleases are excluded by plasma membranes, chromatin mapping requires isolating nuclei from cells and digesting the chromatin in situ with nucleases. The quality of this data is highly dependent on the nuclei preparation. Here we describe a method to isolate nuclei from the budding yeast Saccharomyces cerevisiae and the use of micrococcal nuclease to map the chromatin structure at the RNR3 gene. Nuclei isolated by this procedure are competent for many of the common chromatin mapping and detection procedures.
PMID: 16118438 [PubMed - indexed for MEDLINE]
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Janelia Authors
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