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KDM5 Lysine Demethylases Are Involved in Maintenance of 3'UTR Length [RNA-Seq]

ABSTRACT: We discovered that the Saccharomyces cerevisiae lysine demethylase, Jhd2 (also known as KDM5), recruits 3'UTR processing machinery and promotes alteration of 3'UTR length in a demethylase-dependent manner. Interaction of Jhd2 with both chromatin and RNA suggests that Jhd2 affects selection of polyadenylation sites through a transcription-coupled mechanism.

ORGANISM(S): Saccharomyces cerevisiae

PROVIDER: GSE67163 | GEO | 2016/03/23

SECONDARY ACCESSION(S): PRJNA279141

REPOSITORIES: GEO

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KDM5 Lysine Demethylases Are Involved in Maintenance of 3'UTR Length [ChIP-Seq]

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KDM5 Lysine Demethylases Are Involved in Maintenance of 3'UTR Length [RNA-Seq]

Project description:We discovered that the Saccharomyces cerevisiae lysine demethylase, Jhd2 (also known as KDM5), recruits 3'UTR processing machinery and promotes alteration of 3'UTR length in a demethylase-dependent manner. Interaction of Jhd2 with both chromatin and RNA suggests that Jhd2 affects selection of polyadenylation sites through a transcription-coupled mechanism. For 3'READs analysis, wild-type yeast or yeast with JHD2 deleted were grown to mid-log phase and RNA was extracted as mentioned above. cDNA libraries enriched for 3'UTRs were prepared as previously published and as noted in Figure 4a [28]. Samples were then subjected to RNA sequencing on the Illumina Hiseq 2000 using 50bp single end reads. Data was analyzed as previously [Hoque M] with the following modifications: The adapter sequences were trimmed off the single-ended reads. The remaining reads longer than 15 bp were mapped to yeast genome SacCer3 using bowtie2 [Langmead B 2012] with the setting '-5 4 --local', trimming off 4bp from 5' and allowing soft clipping (S) at both ends. The alignments were then filtered by 1) MAPQ>=10, 2) mismatches <= 5%, 3) unaligned 5' Ts >=2 to get the PASS reads. The last aligned positions of the PASS reads were grouped to pA clusters with a clustering size of 24 bp. Each pA cluster was assigned to one of the genes defined by SGD [Cherry JM]. The 3' end of a gene was extended 1000bp from the end of CDS until it overlaps with another gene in the same direction. The pA Clusters were then filtered by contains 1) >= 3 PASS reads 2) >= 5% of all PASS reads mapped to the gene.

2016-03-23 | E-GEOD-67163 | biostudies-arrayexpress

KDM5 lysine demethylases are involved in maintenance of 3'UTR length.

Project description: Not available

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KDM5 Lysine Demethylases Are Involved in Maintenance of 3'UTR Length

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2016-03-23 | E-GEOD-67212 | biostudies-arrayexpress

KDM5 Lysine Demethylases Are Involved in Maintenance of 3'UTR Length

Project description:This SuperSeries is composed of the SubSeries listed below.

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KDM5 histone demethylases repress innate immune response via suppression of STING

Project description:Tri-methylation on histone H3 lysine 4 (H3K4me3) is enriched near transcription start sites and correlates with active transcription. Like other histone marks, methylation on H3K4 is catalyzed by the respective methyltransferases and erased by demethylases. Lysine demethylase 5 (KDM5) family of Fe (II) and α-ketoglutarate-dependent dioxygenases removes the methyl groups from H3K4me3. All four family members of KDM5 demethylases (KDM5A-D) share sequence identity, have similar in vitro kinetic parameters, and display functional redundancy. To determine the effects of complete depletion of KDM5 activity, we treated MCF7 cells with DMSO, or two pan-KDM5 specific inhibitors, KDM5-C70 (our lab code 443) and CPI-48 (our lab code 278) and performed RNA sequencing to determine gene expression changes after KDM5 inhibitor treatment.

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Project description:The goal of this study was to generate a Drosophila model of intellectual disability caused by mutations in kdm5. RNA-seq was used to define the transcriptional defects of a mutation in Drosophila that is analogous to a human intellectual disability-associated allele, kdm5[A512p]. These data revealed a total of 1609 dysregulated genes, 778 of which were upregulated and 831 were downregulated. To determine whether these transcriptional defects were due to the loss of KDM5-induced histone demethylation, we also carried out RNA-seq from a enzymatic inactive strain, kdm5[Jmjc*]. These data revealed a striking similarity between the two datasets and suggest that the primary defect of KDM5[A512P] is loss of histone demethylase activity.

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Non-canonical RNA-binding of the histone lysine demethylase KDM5 through interactions with G-quadruplex sequences

Project description:RNA-binding proteins are important regulators of RNA biogenesis and function, and recent work shows that chromatin- and RNA-binding proteins can have regulatory roles in transcription. Several approaches have been developed to predict RNA-binding proteins and to identify them experimentally at large scale, including binding to structural elements as G-quadruplexes. Here, we show that the histone lysine demethylase protein KDM5 can bind to RNA through interaction with G-quadruplexes with high affinity despite neither being categorized as an RNA-binding protein nor identified as a G-quadruplex binding protein across numerous experimental large-scale and computational studies. In addition to characterizing the KDM5 G-quadruplex interaction we show that RNA is directly involved in the formation of KDM5-containing protein complexes. Computational predictions and comparison to other ARID domain containing proteins suggest that the ARID domain is directly interacting with both DNA and RNA across several proteins. Our work highlights that non-canonical aspects of RNA-binding proteins are present, and that G-quadruplex RNA-binding could provide a regulatory mechanism for chromatin-binding proteins with impact on transcription through linking protein complexes within the cell.

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