Project description:We mapped genome-wide Tcf1 binding locations in mature CD8 T cells to identify its direct target genes. This experiment aims to identify genome-wide binding locations for Tcf1 transcription factor in mature CD8 T cells. The CD8 T cells were isolated from wild-type C57BL/6 mice by negative selection. The chromatin fragments were immunoprecipitated by an anti-Tcf1 antiserum or control rabbit serum (without immunization). The immunoprecipitated fragments were then used in high throughput sequencing. Data processing then revealed >3000 high-confidence Tcf1 binding peaks across the CD8 T cell genome. One important finding is that Tcf1 binds directly to Cd4 gene silencer, and thus explain its important role in suppressing the CD4 coreceptor in mature CD8 T cells.
Project description:Compendium of high-throughput sequencing datasets derived from murine CD8+ T cells responding to infection, profiled by RNA-seq, ChIP-seq, and ATAC-seq at Naïve, Effector, and Memory timepoints across the Kaech, Goldrath, and Pereira labs, and ChIP-seq of various transcription factors across several labs Submission contains both original data from the Kaech lab and reanalysis of data from the Pereira and Goldrath labs, as well as various other labs corresponding to individual transcription factor ChIP-seq datasets, totaling to 96 reanalyzed GSM samples across several GSE series Included GSE series are: GSE95237 (Genome-wide maps of chromatin state and chromatin accessibility in CD8 T cell subsets), GSE95238 (Epigenetic landscapes reveal transcription factors that regulate CD8+ T cell differentiation), GSE88987 (Dynamic changes in chromatin accessibility in CD8+ T cells responding to viral infection), GSE58075 (Genome-wide mapping of Myc, AP4, and phosphorylated RNA polymerase II binding in activated CD8 T cells by ChIP sequencing), GSE54191 (ChIP-Seq analysis of BATF, IRF4, the Jun proteins, and histone modifications in effector CD8+ T cells), GSE20898 (Genome-wide Analyses of Transcription Factor GATA3-Mediated Gene Regulation in Distinct T Cell Types), GSE46943 (Transcription Factor Foxo1 Controls Memory CD8+ T Cell Responses To Infection [ChIP-Seq]), GSE72997 (ChIP-Seq analysis of Helios and histone modifications in CD4+ and CD8+ Tregs), GSE50128 (Genome-wide maps of Runx3 bound regions in splenic IL-2-activated CD8+ T cells), GSE72565 (Binding of STAT5 upon IL-2 treatment to genomic sites in mouse CD8 T cells costimulated in vivo through CD134 plus CD137), GSE49930 (The transcription factor IRF4 is essential for T cell receptor affinity mediated metabolic programming and clonal expansion of T cells [ChIP-seq]), and GSE52070 (Genome-wide maps of Tcf1 binding locations in splenic CD8 T cells)
Project description:Comparison of epigenome and Tcf1 occupancy between control and Tcf1/Lef1-deficient CD8 T cells Control mice or those are deficient for Tcf1 and Lef1 transcription factors (deleted by CD4-Cre) were used to isolate thymocytes. The thymocytes were surface-stained to identify TCRbeta high, CD69â, CD24â CD8+ subsets. These cells were sorted for ChIPseq analysis of various histone marks. Control mice or those are deficient for Tcf1 (deleted by CD4-Cre) were used to isolate thymocytes. The splenocytes were surface-stained to identify TCRbeta high, CD8+ subsets. These cells were sorted for ChIPseq analysis of Tcf1 binding locations.