Project description:Gene expression profiling reveals that SET1A regulates gene expression, metabolism and development programs in mouse ES Cells To analyze the global effect of SET1A on gene expression in ES cells, we compared the gene expression profiles in CGR8 cells treated with control and Set1A siRNA by RNA-seq.
Project description:PURPOSE: To provide a detailed gene expression profile of the normal postnatal mouse cornea. METHODS: Serial analysis of gene expression (SAGE) was performed on postnatal day (PN)9 and adult mouse (6 week) total corneas. The expression of selected genes was analyzed by in situ hybridization. RESULTS: A total of 64,272 PN9 and 62,206 adult tags were sequenced. Mouse corneal transcriptomes are composed of at least 19,544 and 18,509 unique mRNAs, respectively. One third of the unique tags were expressed at both stages, whereas a third was identified exclusively in PN9 or adult corneas. Three hundred thirty-four PN9 and 339 adult tags were enriched more than fivefold over other published nonocular libraries. Abundant transcripts were associated with metabolic functions, redox activities, and barrier integrity. Three members of the Ly-6/uPAR family whose functions are unknown in the cornea constitute more than 1% of the total mRNA. Aquaporin 5, epithelial membrane protein and glutathione-S-transferase (GST) omega-1, and GST alpha-4 mRNAs were preferentially expressed in distinct corneal epithelial layers, providing new markers for stratification. More than 200 tags were differentially expressed, of which 25 mediate transcription. CONCLUSIONS: In addition to providing a detailed profile of expressed genes in the PN9 and mature mouse cornea, the present SAGE data demonstrate dynamic changes in gene expression after eye opening and provide new probes for exploring corneal epithelial cell stratification, development, and function and for exploring the intricate relationship between programmed and environmentally induced gene expression in the cornea. Keywords: other
Project description:To identify SET1A genome-wide occupancy and further unveil its role in transcriptional regulation in mouse ES cells, we carried out chromatin immunoprecipitation followed by high sequencing (ChIP-seq).We established a stable ES cell line expressing 2X Flag tagged SET1A and performed ChIP with anti-Flag M2 beads, followed by deep sequencing. We found that the SET1A peaks show an outstanding enrichment in promoter region. Importantly, these SET1A binding loci revealed a clear co-localization with OCT4, and high H3K4me3 level, which is consistent with its interaction with OCT4 and intrinsic H3K4 methylase activity.