Project description:We mapped the nucleosome locations in upstream regions of all known microRNAs in 3 cell lines using the method described in Nature Biotechnology 2007 Feb;25(2):244-8. Keywords: Nucleosome Mapping Study 20 kb upstream regions of microRNAs were tiled at 10 bp spacing using mostly 50-mer probes. Duplicate experiments were performed in MCF7, MALME, and UACC62 cell lines.
Project description:We mapped the nucleosome locations in upstream regions of all known microRNAs in 3 cell lines using the method described in Nature Biotechnology 2007 Feb;25(2):244-8. Keywords: Nucleosome Mapping Study
Project description:The insulin-like growth factor 1 receptor (IGF-1R) plays crucial roles in developmental and cancer biology. Most of its biological effects have been ascribed to its tyrosine kinase activity. We report that IGF-1 promotes the modification of IGF-1R by small ubiquitin-like modifier protein-1 (SUMO-1) and its translocation to the nucleus. Nuclear IGF-1R associated with enhancer-like elements and increased transcription in reporter assays. We used ChIP-seq to examine the interaction of IGF-1R with DNA on a genome-wide scale. Analysis of the data set resulted in 568 candidate peaks, that is, statistically significant IGF-1R-enriched regions. The IGF-1R-enriched regions were divided into five classes on the basis of their location relative to known genes. Most of the IGF-1R-interacting sites (80%) were located distal from any annotated gene (intergenic), 6.3% were located in introns, 6.3% in exons, 3.4% were <20 kb upstream of an annotated transcript start site (5'UTR + 20 kb upstream), and 3.6% were <20 kb downstream of an annotated transcript end site (3'UTR + 20 kb downstream).
Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
