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RNA binding properties of NONO and NONO-delta-ER in testis

ABSTRACT: RNA binding properties of NONO and NONO-delta-ER in testis

PROVIDER: PRJNA1096719 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR28572752_1.fastq.gz	Fastqsanger.gz
	SRR28572752_2.fastq.gz	Fastqsanger.gz
	SRR28572753_1.fastq.gz	Fastqsanger.gz
	SRR28572753_2.fastq.gz	Fastqsanger.gz
	SRR28572754_1.fastq.gz	Fastqsanger.gz

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RNA binding properties of NONO and NONO-delta-ER in testis;

Project description:To investigate the RNA binding proterties of NONO and NONO-delta-ER in testis; we collected adult NONO and NONO-delta-ER mice testis We then performed eCLIP-seq respectively and convey subsequent bioinformatic analysis.

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RNA binding properties of PDHA2, TEX30 in testis; RNA binding properties of HA-NONO and HA-NONO△ER in 3T3L1 cell line.

Project description:To investigate the RNA binding proterties of PDHA2, TEX30 in testis; RNA binding properties of HA-NONO and HA-NONO△ER in 3T3L1 cell line, we collected wildtype testis and HA-NONO/HA-NONO△ER overexpressed 3T3L1 cells. We then performed eCLIP-seq respectively and convey subsequent bioinformatic analysis.

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RNA binding properties of PDHA2, TEX30 in testis RNA binding properties of HA-NONO and HA-NONO△ER in 3T3L1 cell line.

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NONO mutations cause syndromic intellectual disability and inhibitory synaptic defects

Project description:Identifying causes of sporadic intellectual disability remains a considerable medical challenge. Here, we demonstrate that null mutations in the NONO gene, a member of the Drosophila Behavior Human Splicing (DBHS) protein family, are a novel cause of X-linked syndromic intellectual disability. Comparing humans to Nono-deficient mice revealed related behavioral and craniofacial anomalies, as well as global transcriptional dysregulation. Nono-deficient mice also showed deregulation of a large number of synaptic transcripts, causing a disorganization of inhibitory synapses, with impaired postsynaptic scaffolding of gephyrin. Alteration of gephyrin clustering could be rescued by over-expression of Gabra2 in NONO-compromised neurons. These findings link NONO to intellectual disability and first highlight the key role of DBHS proteins in functional organization of GABAergic synapses.

2015-09-02 | E-MTAB-2895 | biostudies-arrayexpress

NONO mutations cause syndromic intellectual disability and inhibitory synaptic defects

2015-09-02 | E-MTAB-2894 | biostudies-arrayexpress

NONO knockdown RNA-seq and neuroblastoma PARCLIP analysis of NONO

Project description:siRNA knockdown of NONO mRNA followed by RNA-seq was carried out in the KELLY neuroblasotma cell line. In order to determine potential regulatory targets of NONO protein, we performed differential expression analysis. To identify the RNA targets of NONO in neuroblastoma, we carried out PAR-CLIP (Photoactivatable Ribonucleoside-Enhanced Crosslinking and Immunoprecipitation) using an antibody recognising NONO protein.

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O-GlcNAcylation of NONO is Critical for Paraspeckle Component Assembly and Contributes to Tumorigenesis

Project description:Non-POU domain-containing octamer-binding protein (NONO) is a multifunctional member of the Drosophila behavior/human splicing (DBHS) protein family with DNA- and RNA-binding activity. Recent studies revealed that NONO is O-GlcNAcylated and dysregulated in various types of cancer. Excessive O-GlcNAcylation of target proteins has also been implicated in tumorigenesis. However, it is not known whether O-GlcNAcylation of NONO promotes cancer cell growth, and little is known about the effect of O-GlcNAcylation on the biological properties of NONO. This study identifies Thr440 as the primary NONO O-GlcNAcylation site and demonstrates its crucial role in the assembly of paraspeckles, an important subnuclear compartment that facilitates NONO-dependent transcriptional regulation in mammalian cells. We demonstrated that O-GlcNAcylation of NONO is required to maintain the expression of genes related to GO category “microtubule cytoskeleton organization involved in mitosis” and to suppress the expression of genes related to GO category “cellular response to type I interferon”. Moreover, stable depletion of NONO O-GlcNAcylation or NONO knockout significantly inhibited the growth of colon cancer cells. These findings highlight the importance of NONO and its O-GlcNAcylation status in modulating cell cycle progression, immune response, and tumorigenesis.

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Remodeling oncogenic transcriptomes by small molecules targeting NONO

Project description:A large swath of the human proteome is dedicated to mRNA homeostasis, but most RNA-binding proteins lack chemical probes. Here, we report the discovery through phenotypic screening of electrophilic small molecules that swiftly (within 4 h) and stereospecifically decrease transcripts encoding the androgen receptor (AR) and its major V7 splice variant in human prostate cancer cells. We show by chemical proteomics that these compounds covalently engage cysteine-145 of the RNA-binding protein NONO. Broader profiling revealed that covalent NONO ligands suppress a discrete set of transcripts and proteins, including multiple oncogenic transcription factors, and impair the proliferation of cancer cells. These effects were not observed following genetic disruption of NONO, which instead blocked ligand activity. The covalent ligands promote accumulation of NONO in nuclear foci and at the first 5’ splice site of immature transcripts, pointing to a trapping mechanism that may prevent the compensatory action of the paralogous proteins PSPC1 and SFPQ, which were found to increase in cancer cells following genetic or chemical perturbation of NONO. These findings, taken together, designate NONO as a druggable RNA-binding protein that can be co-opted by covalent small molecules to suppress pro-tumorigenic transcriptional networks.

2024-01-26 | PXD039283 | Pride

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