title: Chromatin architectures at fission yeast transcriptional promoters and replication origins.
abstract: We have used micrococcal nuclease (MNase) digestion followed by deep sequencing in order to obtain a higher resolution map than previously available of nucleosome positions in the fission yeast, Schizosaccharomyces pombe. Our data confirm an unusually short average nucleosome repeat length, ∼152 bp, in fission yeast and that transcriptional start sites (TSSs) are associated with nucleosome-depleted regions (NDRs), ordered nucleosome arrays downstream and less regularly spaced upstream nucleosomes. In addition, we found enrichments for associated function in four of eight groups of genes clustered according to chromatin configurations near TSSs. At replication origins, our data revealed asymmetric localization of pre-replication complex (pre-RC) proteins within large NDRs-a feature that is conserved in fission and budding yeast and is therefore likely to be conserved in other eukaryotic organisms.
authors.affiliation: Department of Molecular and Cellular Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA.
authors.forename: Robert M
authors.initials: RM
authors.lastname: Givens
authors.forename: William K M
authors.initials: WK
authors.lastname: Lai
authors.forename: Jason M
authors.initials: JM
authors.lastname: Rizzo
authors.forename: Jonathan E
authors.initials: JE
authors.lastname: Bard
authors.forename: Piotr A
authors.initials: PA
authors.lastname: Mieczkowski
authors.forename: Janet
authors.initials: J
authors.lastname: Leatherwood
authors.forename: Joel A
authors.initials: JA
authors.lastname: Huberman
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Buck
mesh_terms: D002843:Chromatin / Q000737:chemistry*; D004268:DNA-Binding Proteins / Q000032:analysis; D005800:Genes, Fungal; D059014:High-Throughput Nucleotide Sequencing; D008836:Micrococcal Nuclease; D009707:Nucleosomes / Q000737:chemistry; D011401:Promoter Regions, Genetic; D018741:Replication Origin; D012441:Saccharomyces cerevisiae / Q000235:genetics; D012568:Schizosaccharomyces / Q000235:genetics* / Q000254:growth & development; D029702:Schizosaccharomyces pombe Proteins / Q000032:analysis; D017422:Sequence Analysis, DNA; D024363:Transcription Initiation Site
chemical_list: D002843:Chromatin; D004268:DNA-Binding Proteins; D009707:Nucleosomes; D029702:Schizosaccharomyces pombe Proteins; D008836:Micrococcal Nuclease