Mus musculus
Ontology highlight
ABSTRACT:
OTHER RELATED OMICS DATASETS IN: E-GEOD-58078
PROVIDER: PRJNA248823 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The trasncription factor cMyc is an essential transcription factor that establishes a metabolically active and proliferative state in T cells after antigen priming. However, its expression is transient. To date, it remains unknown how T cell activation is maintained after cMyc down-regulation. Here, we identify AP4, encoded by the gene Tfap4, as the transcription factor that is induced by cMyc and sustains activation of antigen-specific CD8+ T cells. Despite normal priming, Tfap4–/– CD8+ T cells fail to continue transcription of a broad range of cMyc gene targets necessary for sustained proliferation. Genome-wide analysis suggests that many activation-induced metabolic genes are shared targets of cMyc and AP4. Thus, AP4 maintains Myc-initiated cellular activation programs in CD8+ T cells to control microbial infections. Naive CD8+ T cells from C57BL6 mice were activated with anti-CD3 and anti-CD28 stimulation in vitro for two days and genome-wide occupancy of Myc, AP4 and Ser2 or Ser5 phipsphorylated RNA polymerase II was profiled by chromatin immunoprecipitation and high-throughput sequencing.
2014-07-13 | E-GEOD-58075 | biostudies-arrayexpress
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)
2018-03-17 | GSE111902 | GEO
Project description:To determine functional overlap between cMyc and AP4 in CD8+ T cell priming, we retrovirally expressed cMyc or AP4 in cMyc-deficient CD8+ T cells and examined gene expression after activation. Naive CD8+ T cells from Myc conditional knockout mice with a tamoxifen inducible Cre transgene were retrovirally transduced with Myc or AP4 followed by a treatment with 4-hydroxytamoxifen in the presence of IL-7 for 2 days. RNA was harvested 48 hours after restimulation of transduced cells with anti-CD3 antibody and gene expression was compared by microarray. CD8+ T cells from littermate wildtype mice that were transduced with an empty retrovirus were used as control.
2014-07-13 | E-GEOD-58079 | biostudies-arrayexpress
Project description:ChIP-chip profiles of RNA Polymerase II phosphorylated on serine 2 in Drosophila S2 cells. RNA Polymerase II phosphorylated on serine 2 ChIP in Drosophila S2 cells. 3 biological replicates with dye-swaps.
2012-05-07 | E-GEOD-37784 | biostudies-arrayexpress
Project description:The RNA polymerase II (RNApII) C-terminal domain (CTD)-interacting domain (CID) proteins are involved in two distinct termination pathways and recognize different phosphorylated forms of CTD. To investigate the role of differential CTDM-^VCID interactions in the choice of termination pathway, we altered the CTD-binding specificity of Nrd1 by domain swapping. ChIP-chip was performed to examine the effect of Nrd1 CID swapping on genome-wide RNA polymerase II (Rpb3 antibody, Neoclone) occupancy. Nrd1 with the CID from Rtt103 (Nrd1[CID-Rtt103]; strain YSB2445) causes read-through transcription at many genes, but can trigger termination where multiple Nrd1/Nab3-binding sites and serine 2 phosphorylated CTD co-exist.
2013-12-04 | E-MTAB-1626 | biostudies-arrayexpress
Project description:B cells diversify and affinity-mature their antigen receptor repertoire in germinal centers (GC). GC B cells receive help signals during transient interaction with T cells, yet it remains unknown how these transient T-B interactions sustain the subsequent proliferative program of selected B cells. Here we show that the transcription factor AP4 is required for sustained GC B cell proliferation and subsequent establishment of a diverse and protective antibody repertoire. AP4 is induced by c-MYC during the T-B interactions and maintained by T cell-derived IL-21. B cell-specific deletion of AP4 resulted in reduced GC sizes and somatic hypermutation and a failure to control chronic viral infection. These results indicate that AP4 integrates T cell-mediated selection and sustained expansion of GC B cells for humoral immunity. Splenic B cells activated with anti-IgM and CD40L in vitro and germinal center B cells sorted from C57BL/6 mice eight days after immunization with sheep red blood cells (SRBCs) were obtained and genome-wide occupancy of c-MYC, AP4 and active histone marks was profiled by chromatin immunoprecipitation and high-throughput sequencing. Gene expression in MYCâAP4â LZ, MYC+AP4+ LZ, AP4+ DZ, and APâ DZ GC B cells from SRBC-immunized AP4-mCherry / c-MYC-GFP dual reporter mice was profiled by RNA-seq.
2016-08-23 | E-GEOD-80669 | biostudies-arrayexpress
Project description:To investigate the chromatin transcription cycle, we determined genome-wide occupancy profiles for RNA polymerase (Pol) II, its phosphorylated forms, and transcription factors in growing yeast. ChIP-chip was performed to identify the genomic binding locations for Rpb3, TFIIB, Tfg1, Kin28, Cet1, Spt4, Spt5, Spt6, Elf1, Spn1, Bur1, Ctk1, Paf1, Spt16, Pcf11, and Rpb1 phosphorylated at serine 2, 5, and 7 residues of the CTD, respectively.
2010-08-23 | E-TABM-1033 | biostudies-arrayexpress
Project description:ChIP-chip was performed to identify the genomic binding locations for the termination factors Nrd1, and Rtt103, and for RNA polymerase (Pol) II phosphorylated at the tyrosine 1 and threonine 4 position of its C-terminal domain (CTD). In different phases of the transcription cycle, Pol II recruits different factors via its CTD, which consists of heptapeptide repeats with the sequence Tyr1-Ser2-Pro3-Thr4-Ser5-Pro6-Ser7. Here we show that the CTD of transcribing yeast Pol II is phosphorylated at Tyr1, and that this impairs recruitment of termination factors. Tyr1 phosphorylation levels rise downstream of the transcription start site (TSS), and decrease before the polyadenylation (pA) site. Tyr1-phosphorylated gene bodies are depleted of CTD-binding termination factors Nrd1, Pcf11, and Rtt103. Tyr1 phosphorylation blocks CTD binding by these termination factors, but stimulates binding of elongation factor Spt6. These results show that CTD modifications can not only stimulate but also block factor recruitment, and lead to an extended CTD code for transcription cycle coordination.
2012-06-29 | E-MTAB-1060 | biostudies-arrayexpress
Project description:ChIP-chip profiles of RNA Polymerase II phosphorylated on serine 2 in Drosophila S2 cells.
2012-05-08 | GSE37784 | GEO
Project description:The trasncription factor cMyc is an essential transcription factor that establishes a metabolically active and proliferative state in T cells after antigen priming. However, its expression is transient. To date, it remains unknown how T cell activation is maintained after cMyc down-regulation. Here, we identify AP4, encoded by the gene Tfap4, as the transcription factor that is induced by cMyc and sustains activation of antigen-specific CD8+ T cells. Despite normal priming, Tfap4–/– CD8+ T cells fail to continue transcription of a broad range of cMyc gene targets necessary for sustained proliferation. Genome-wide analysis suggests that many activation-induced metabolic genes are shared targets of cMyc and AP4. Thus, AP4 maintains Myc-initiated cellular activation programs in CD8+ T cells to control microbial infections.
2014-07-13 | GSE58075 | GEO