Abstract：
:Eukaryotic genomes are packaged into nucleosomes whose position and chemical modification state can profoundly influence regulation of gene expression. We profiled nucleosome modifications across the yeast genome using chromatin immunoprecipitation coupled with DNA microarrays to produce high-resolution genome-wide maps of histone acetylation and methylation. These maps take into account changes in nucleosome occupancy at actively transcribed genes and, in doing so, revise previous assessments of the modifications associated with gene expression. Both acetylation and methylation of histones are associated with transcriptional activity, but the former occurs predominantly at the beginning of genes, whereas the latter can occur throughout transcribed regions. Most notably, specific methylation events are associated with the beginning, middle, and end of actively transcribed genes. These maps provide the foundation for further understanding the roles of chromatin in gene expression and genome maintenance.
journal_name
Celljournal_title
Cellauthors
Pokholok DK,Harbison CT,Levine S,Cole M,Hannett NM,Lee TI,Bell GW,Walker K,Rolfe PA,Herbolsheimer E,Zeitlinger J,Lewitter F,Gifford DK,Young RAdoi
10.1016/j.cell.2005.06.026subject
Has Abstractpub_date
2005-08-26 00:00:00pages
517-27issue
4eissn
0092-8674issn
1097-4172pii
S0092-8674(05)00645-8journal_volume
122pub_type
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