Project description:8-oxo-7,8-dihydro-2’-deoxyguanine (8-oxodG) is one of the major DNA modifications and a potent pre-mutagenic lesion prone to mispair with deoxyadenine (dA). Here, by using OxyDIP-Seq, we report the genome-wide distribution of 8-oxodG in human MCF10A cells arrested in G0.
Project description:This experiment is a part of global location analysis of the human DREAM complex including subunits: E2F4, RBL2/p130, LIN9 and LIN54. Specifically, the regions in Human Promoter Array 1.0R (GPL5082) bound by: E2F4 in G0-arrested T98G cells E2F4 in S-phase synchronized T98G cells LIN54 in G0-arrested T98G cells LIN54 in S-phase synchronized T98G cells LIN9 in G0-arrested T98G cells LIN9 in S-phase synchronized T98G cells p130 in G0-arrested T98G cells p130 in S-phase synchronized T98G cells were compared with input chromatin. MAT (Model-based Analysis for Tiling Arrays) .bar and .bed output files provided as supplementary files. Keywords: CHiP-chip genomic DNA
Project description:We report genome wide mapping of the histone variant H2A.Z during G0/G1 and mitosis in T24 bladder cancer cells. The results show that the broad enrichment pattern of H2A.Z near transcription start sites of active genes is maintained during mitosis. Furthermore, using H2A.Z localization to visualize nucleosome positioning near the start site, we see that the +1 nucleosome of active genes shifts upstream to occupy the transcription start sites during mitosis and the nucleosome depleted region is shortened. H2A.Z is also maintained on the -2 nucleosome which also shifts towrds the transcription start site during mitosis, further contributing to the shorteneing of the nucleosome depleted region. Examination of H2A.Z duing G0/G1 and mitosis in bladder cancer cells
Project description:We report genome wide mapping of the histone variant H2A.Z during G0/G1 and mitosis in T24 bladder cancer cells. The results show that the broad enrichment pattern of H2A.Z near transcription start sites of active genes is maintained during mitosis. Furthermore, using H2A.Z localization to visualize nucleosome positioning near the start site, we see that the +1 nucleosome of active genes shifts upstream to occupy the transcription start sites during mitosis and the nucleosome depleted region is shortened. H2A.Z is also maintained on the -2 nucleosome which also shifts towrds the transcription start site during mitosis, further contributing to the shorteneing of the nucleosome depleted region.
Project description:Body cells in multi-cellular organisms are in the G0 state, in which cells are arrested and terminally differentiated. To understand how the G0 state is maintained, the genes that are specifically expressed or repressed in G0 must be identified, as they control G0. In the fission yeast Schizosaccharomyces pombe, haploid cells are completely arrested under nitrogen source starvation with high viability. We examined the global transcriptome of G0 cells and cells on the course to resume vegetative growth. Approximately 20% of the transcripts of ~5000 genes increased or decreased more than 4-fold in the two-step transitions that occur prior to replication. Of the top 30 abundant transcripts in G0, 23 were replaced by ribosome- and translation-related transcripts in the dividing vegetative state. Eight identified clusters with distinct alteration patterns of ~2700 transcripts were annotated by Gene Ontology. Disruption of 53 genes indicated that 9 of them were necessary to support the proper G0 state. These 9 genes included two C2H2 zinc finger transcription factors, a cyclin-like protein implicated in phosphorylation of RNA polymerase II, two putative autophagy regulators, a G-protein activating factor, and two CBS domain proteins, possibly involved in AMP-activated kinase. Keywords: Keywards: Time course, Nitrogen starvation, G0 state, Nitrogen replenishment, Nutrient signal, Cell cycle, Cell proliferation
Project description:We mapped and quantified poly(A) sites in BJ and MCF10A cells under proliferative, arrested and transformed states Two human cell lines (BJ and MCF10A) examined under proliferative, arrested and transformed states
Project description:Results of growing MCF10A cells continuously in serum free media supplemented with EGF (MCF10A) or AREG (MCF10A+AREG) followed by 24 hours of ligand withdrawl and measuring gene expression provides information as to what genes are regulated by AREG and EGF in a normal mammary epithelial cell model MCF10A cells continuously in serum free media supplemented with 10ng/ml of EGF (MCF10A) or 20ng/ml of AREG (MCF10A+AREG) followed by 24 hours of ligand withdrawl. Total RNA was collected and genome-wide analysis of expression was performed on RNA from each cell line.