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Splicing enhances recruitment of methyltransferase HYPB/Setd2 and methylation of histone H3 lysine 36

ABSTRACT: Several lines of recent evidence support a role for chromatin in splicing regulation. Here we show that splicing can also contribute to histone modification, which implies a bidirectional communication between epigenetics and RNA processing. Genome-wide analysis of histone methylation in human cell lines and mouse primary T cells reveals that intron-containing genes are preferentially marked with H3K36me3 relative to intronless genes. In intron-containing genes, H3K36me3 marking is proportional to transcriptional activity, whereas in intronless genes H3K36me3 is always detected at much lower levels. Furthermore, splicing inhibition impairs recruitment of H3K36 methyltransferase HYPB/Setd2 and reduces H3K36me3, whereas splicing activation has the opposite effect. Moreover, the increase of H3K36me3 correlates with the length of the first intron, consistent with the view that splicing enhances H3 methylation. We propose that splicing is mechanistically coupled to recruitment of HYPB/Setd2 to elongating RNA Polymerase II.

ORGANISM(S): Homo sapiens

PROVIDER: GSE30902 | GEO | 2011/07/25

SECONDARY ACCESSION(S): PRJNA144241

REPOSITORIES: GEO

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Splicing enhances recruitment of methyltransferase HYPB/Setd2 and methylation of histone H3 lysine 36

Project description:Several lines of recent evidence support a role for chromatin in splicing regulation. Here we show that splicing can also contribute to histone modification, which implies a bidirectional communication between epigenetics and RNA processing. Genome-wide analysis of histone methylation in human cell lines and mouse primary T cells reveals that intron-containing genes are preferentially marked with H3K36me3 relative to intronless genes. In intron-containing genes, H3K36me3 marking is proportional to transcriptional activity, whereas in intronless genes H3K36me3 is always detected at much lower levels. Furthermore, splicing inhibition impairs recruitment of H3K36 methyltransferase HYPB/Setd2 and reduces H3K36me3, whereas splicing activation has the opposite effect. Moreover, the increase of H3K36me3 correlates with the length of the first intron, consistent with the view that splicing enhances H3 methylation. We propose that splicing is mechanistically coupled to recruitment of HYPB/Setd2 to elongating RNA Polymerase II. This experiment proposes to profile genome-wide binding profiles by ChIP-seq (Illumina, 36 bp tags) of RNA polymerase II (one biological replicate), the histone modification H3K36me3 (2 replicates) and a reference control input sample (genomic DNA after reverse cross-link, one replicate) in a human H1299 lung carcinoma cell line *** Raw data not provided for Samples GSM766322-GSM766324.

2011-07-25 | E-GEOD-30902 | biostudies-arrayexpress

Homo sapiens

Project description:Splicing enhances recruitment of methyltransferase HYPB/Setd2 and methylation of histone H3 lysine 36

| PRJNA144241 | ENA

Cues from mRNA splicing prevent default Argonaute silencing in C. elegans

Project description:In animals Argonaute small-RNA pathways scan germline transcripts to silence self-replicating genetic elements. Little is known however about how endogenous gene expression is recognized and licensed. Here we show that the presence of introns and by inference the process of mRNA splicing prevents default Argonaute-mediated silencing in the C. elegans germline. Silencing of intronless genes is initiated independently of the piRNA pathway but nevertheless engages multiple components of the downstream amplification and maintenance mechanisms that mediate transgenerational silencing including both nuclear and cytoplasmic members of the worm-specific Argonaute gene family (WAGOs). Small RNAs amplified from intronless mRNAs can trans-silence cognate intron-containing genes. Interestingly, a second small RNA-independent cis-acting mode of silencing also acts on intronless mRNAs. Our findings suggest that cues put in place during mRNA splicing license germline gene expression and provide evidence for a splicing-dependent and dsRNA- and piRNA-independent mechanism that can program Argonaute silencing.

2021-06-28 | GSE178985 | GEO

Comparison of gene expression pattern between Wild-type and Hypb knockout embryo yolk sacs

Project description:This study aimed at exploring the physiological function of mammalian HYPB by means of knockout mouse model. Homogenous disruption of mouse Hypb gene leads to embryonic lethality at E10.5-E11.5. Severe vascular defects were observed in the Hypb-/- embryos, yolk sac and placenta.In the mutant embryo and yolk sac, disorganized and abnormally dilated capillaries cannot be remodeled into large blood vessels or intricate networks. Thus, our results suggest that the mammalian HYPB HMT plays an important role in embryonic vascularization. Keywords: knockout, mouse embryo development, angiogenesis, yolk sac, E9.0, E10.5

2009-12-28 | GSE10113 | GEO

CHD8 Suppression Impacts on Histone H3 Lysine 36 Trimethylation and Alters RNA Alternative Splicing

Project description:Disruptive mutations in the chromodomain helicase DNA binding protein 8 (CHD8) have been recurrently associated with Autism Spectrum Disorders (ASD). Here we investigated how chromatin reacts to CHD8 suppression by analyzing a panel of histone modifications in induced pluripotent stem cell-derived neural progenitors. CHD8 suppression led to significant reduction (47.82%) in histone H3K36me3 peaks at gene bodies, particularly impacting on transcriptional elongation chromatin states. H3K36me3 reduction specifically affects highly expressed, CHD8-bound genes and correlates with altered alternative splicing patterns of 408 genes implicated in “regulation of RNA splicing”, “mRNA catabolic process”. Interestingly, mass-spectrometry analysis uncovered a novel interaction between CHD8 and the splicing regulator Heterogeneous Nuclear Ribonucleoprotein L (hnRNPL), providing the first mechanistic insights to explain CHD8-suppression splicing phenotype, partially implicating SETD2, H3K36me3 methyltransferase. In summary, our results point toward broad molecular consequences of CHD8 suppression, entailing altered histone deposition/maintenance and RNA processing regulation as important regulatory processes in ASD.

2023-03-11 | PXD025739 | Pride

The SPOP-containing Complex Functions as an E3 Ligase for SETD2 to Regulate Gene-Specific H3K36me3-Coupled Alternative Splicing

Project description:H3K36me3 has been reported to associate with active gene expression, and SETD2 is the mainly methyltransferase for H3K36me3. We identified SPOP which is a CUL3 family protein as a E3 ligase for SETD2. Genome wide analysis by using ChIPSeq and RNASeq demonstrate that SPOP specificly eliminate H3K36me3 modification at target genes and resulted in alternative splicing of those target genes.

2016-11-10 | GSE75270 | GEO

setd2 knockout zebrafish is survivable and fertile: differential and developmental-stress-related requirements for Setd2 and histone H3K36 trimethylation in different vertebrate animals

Project description:Setd2 is the only enzyme that catalyzes histone H3 lysine 36 trimethylation (H3K36me3) on virtually all actively transcribed protein-coding genes, and this mechanism is evolutionarily conserved from yeast to human. Setd2 and H3K36me3 have been revealed to be involved in many important biochemical mechanisms, including DNA repair, alternative mRNA splicing and transcription elongation. However, physiological function of Setd2 in the context of zebrafish development remains elusive. Here we generated zebrafish setd2 mutant lines through disrupting the majority of the protein. And mRNA profiles of wild-type (WT), Setd2(+/-) and Setd2(-/-) zebrafish embryos at 36hpf were generated by deep sequencing, providing an opportunity to uncover molecular programs and functions of Setd2.

2020-05-27 | GSE151238 | GEO

TPR Knockdown Frac-Seq

Project description:How splicing regulates the nuclear export of mRNAs has been a source of much debate. While splicing has been shown to enhance nuclear export, it has remained unclear whether mRNAs generated from intronless genes use specific machinery to promote their export. Here we investigate the role of the major nuclear pore basket protein, TPR, in regulating mRNA and lncRNA nuclear export. We provide evidence that TPR is required for the nuclear export of mRNAs and lncRNAs that are generated from intronless or intron-poor genes. In contrast, TPR is not required for the nuclear retention of mRNAs that have retained introns, or unused 5’ splice site motifs. In summary, our study provides one of the first examples of a factor that is specifically required for the nuclear export of intronless mRNAs.

2020-10-02 | GSE135537 | GEO

Intestinal mRNA profiles of 2-month old control (APCmin) and APCmin; Setd2IEC-/- mice generated by deep sequencing

Project description:Setd2 catalyzes trimethylation of lysine 36 on histone H3. H3K36me3 is deposited mainly in the gene body and has recently been demonstrated to play a role in regulating transcriptional elongation and alternative splicing. We conduct deep sequencing in 2-month old control (APCmin) and APCmin; Setd2IEC-/- mice intestinal cells to understand the splicing events regulated by Setd2.

2017-09-01 | GSE95663 | GEO

Genome-wide maps of H3K36me3 in metastatic renal cell carcinoma and isogenic renal cell carcinoma cell lines

Project description:We report the application of H3K36me3 ChIP sequencing in SETD2 genotyped samples Examination of H3K36me3 in SETD2 wild-type, mutant renal cell carcinoma and SETD2 isogenic cell lines

2015-06-19 | E-GEOD-66884 | biostudies-arrayexpress

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