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Terminal uridyltransferase 7 regulates TLR4-triggered inflammation by controlling Regnase-1 mRNA uridylation and degradation [TAIL-Seq]

ABSTRACT: Terminal uridyltransferase 7 regulates TLR4-triggered inflammation by controlling Regnase-1 mRNA uridylation and degradation [TAIL-Seq]

PROVIDER: PRJNA689731 | ENA |

REPOSITORIES: ENA

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Terminal uridyltransferase 7 regulates TLR4-triggered inflammation by controlling Regnase-1 mRNA uridylation and degradation

Project description:Terminal uridyltransferase 7 regulates TLR4-triggered inflammation by controlling Regnase-1 mRNA uridylation and degradation

| PRJNA561406 | ENA

Terminal uridyltransferase 7 regulates TLR4-triggered inflammation by controlling Regnase-1 mRNA uridylation and degradation.

Project description: Not available

| S-EPMC8241994 | biostudies-literature

Terminal uridyltransferase 7 regulates TLR4-triggered inflammation by controlling Regnase-1 mRNA uridylation and degradation [TAIL-Seq]

Project description:We revealed that the transcriptome of the mammalian cells under inflammatory status using TAIL-Seq. The reads from wild-type and Tut7-/- BMDMs were mapped to RefSeq mm10 using HISAT2 and trimmed illumina adapter sequences. Finally, using the specific sequences, including Zc3h12a and Il6 to filter out the sequences, and linker-1 to extract the sequences we interested.

2021-05-26 | GSE164259 | GEO

Molecular basis for cytoplasmic RNA surveillance by uridylation-triggered decay in Drosophila

Project description:The post-transcriptional addition of nucleotides to the 3´ end of RNA regulates the maturation, function, and stability of RNA species in all domains of life. Here, we show that, in flies, 3´ terminal RNA uridylation triggers the processive, 3´-to-5´ exoribonucleolytic decay via the RNase II/R enzyme CG16940, a homolog of the human Perlman syndrome exoribonuclease Dis3l2. Together with the TUTase Tailor, dmDis3l2 forms the cytoplasmic, uridylation-triggered RNA processing (TRUMP) complex, that functionally cooperates in the degradation of structured RNA. RNA-immunoprecipitation and high-throughput sequencing reveals a variety of TRUMP complex substrates, including abundant non-coding RNA, such as 5S rRNA, tRNA, snRNA, snoRNA, and the essential RNase MRP, uncovering a key function of the TRUMP complex in the cytoplasmic quality control of RNA polymerase III transcripts. Together with high-throughput biochemical characterization of dmDis3l2 and bacterial RNase R our results imply a conserved molecular function of RNase II/R enzymes as 'readers' of destabilizing post-transcriptional marks - uridylation in eukaryotes and adenylation in prokaryotes - that play important roles in RNA surveillance.

2017-02-10 | GSE84466 | GEO

Uridylation by TUT4 and TUT7 marks mRNA for degradation [TAIL-Seq]

Project description:Uridylation occurs pervasively on mRNAs in mammals, yet its mechanism and significance remain unknown. Here we identify TUT4 and TUT7 (also known as ZCCHC11 and ZCCHC6, respectively) as the enzymes that uridylate mRNAs. Uridylation readily occurs on deadenylated mRNAs that are not associated with poly(A) binding protein (PABPC1) in cells. Consistently, purified TUT4 and TUT7 (TUT4/7) selectively uridylate RNAs with short A tails (< ~25 nt) while PABPC1 antagonizes uridylation of polyadenylated mRNAs in vitro. In cells depleted of TUT4/7, the vast majority of mRNAs lose the U tails, and their half-lives are extended. Suppression of mRNA decay factors leads to the accumulation of uridylated mRNAs. In line with this, microRNA induces uridylation of its targets, and TUT4/7 is required for enhanced decay of microRNA targets. Our study explains the mechanism underlying selective uridylation of deadenylated mRNAs, and demonstrates a fundamental role of the U tail as a molecular mark for global mRNA decay. Thirteen separate sets of TAIL-seq experiments were performed. Each set includes a negative control for transfection, immunoprecipitation, or knockout cell generation. Experimental samples were treated with various conditions including siRNA transfection, transdominant negative protein expression, TALEN-based gene knockout, or immunoprecipitation. The 'README-TAIL-seq.txt' include detailed information about structure of seq entries in FASTQ files and of processed data for 3' end modifications.

2014-12-04 | E-GEOD-59627 | biostudies-arrayexpress

Terminal uridyltransferase 7 regulates TLR4-triggered inflammation by controlling Regnase-1 mRNA uridylation and degradation

Project description:We revealed that the transcriptome of the mammalian cells under inflammatory status using RNA Sequencing (RNA-Seq). The transcriptome of BMDMs from wild-type and Tut7-/- was compared to baseline. The fold-change was presented by the logarithm of p-values to the base 2 and the significance was presented by the negative logarithm of that to the base 10. log2FC > +0.2 and log2FC < -0.2 indicate the increase of transcript levels by >20% and decreased by >20%, respectively. Among the 352 genes, 111 of them involving in innate immune response were downregulated in Tut7-/- cells.

2021-05-26 | GSE136161 | GEO

Uridylation by TUT4 and TUT7 marks mRNA for degradation [TAIL-Seq]

2014-12-04 | GSE59627 | GEO

Molecular basis for cytoplasmic RNA surveillance by uridylation-triggered decay in Drosophila

Project description:Molecular basis for cytoplasmic RNA surveillance by uridylation-triggered decay in Drosophila

| PRJNA329275 | ENA

RHBDL4-triggered downregulation of COPII adaptor protein TMED7 suppresses TLR4-mediated inflammatory signaling

Project description:The toll-like receptor 4 (TLR4) is a central regulator of innate immune signaling that primarily recognizes bacterial lipopolysaccharide (LPS) cell wall constituents to trigger cytokine secretion. We identify the intramembrane protease RHBDL4 as a negative regulator of TLR4 signaling. We show that RHBDL4-triggers the degradation of TLR4’s trafficking factor TMED7, a member of the p24 family of COPII adaptor proteins, which counteracts the transport of TLR4 to the cell surface. Besides TMED7, RHBDL4 cleaves a subset of related p24 cargo receptors, suggesting that this is a general protein abundance control mechanism to regulate the loading of specific secretory proteins into COPII vesicles. Notably, TLR4 activation by LPS mediates transcriptional upregulation of RHBDL4. Hence, TLR4 activation triggers an RHBDL4-dependent negative feedback loop to reduce the export of newly synthesized TLR4 molecules from the endoplasmic reticulum into COPII-coated vesicles. This secretory cargo tuning mechanism prevents the over-activation of TLR4-dependent signaling and consequently alleviates septic shock in a mouse model.

2024-01-09 | PXD045934 | Pride

Effect of loss of Regnase-1 and Regnase-3 on the transcriptional profile in mouse Lin–Sca1+Kit+ (LSK) cells

Project description:Regulation of lineage biases in hematopoietic stem and progenitor cells (HSPCs) is pivotal for balanced hematopoietic output. However, little is known about the mechanism behind lineage choice in HSPCs. Here, we show that mRNA decay factors Regnase-1 (Zc3h12a) and Regnase-3 (Zc3h12c) are critical for induction of myeloid lineage priming, restricting lymphoid differentiation in HSPCs. Regnase-1- and Regnase-3-mediated control of mRNA encoding Nfkbiz, a transcriptional and epigenetic regulator, was essential for balancing lymphoid/myeloid lineage output in HSPCs in vivo. Furthermore, single cell-assay for transposase-accessible chromatin sequencing (scATAC-seq) analysis revealed that Regnase-1 and Regnase-3 control the epigenetic landscape on myeloid-related gene loci in hematopoietic stem cells (HSCs) via Nfkbiz. Consistently, an antisense oligonucleotide designed to inhibit Regnase-1- and Regnase-3-mediated Nfkbiz mRNA degradation primed HSCs toward myeloid lineages by enhancing Nfkbiz expression. Collectively, the collaboration between post-transcriptional control and chromatin remodeling by the Regnase-1/Regnase-3-Nfkbiz axis governs lineage priming, instructing HSC lineage specification.

2024-02-09 | GSE228923 | GEO

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