Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA314880 | ENA |
REPOSITORIES: ENA
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Project description:Transcriptome analysis of total RNA samples from heart tissue of knockout mice Alternative splicing is the main mechanism to increase protein diversity from an mRNA. Heterogeneous ribonucleoprotein (hnRNP) family members are vital regulators of alternative splicing. The hnRNP A1 is the most well-known protein in this family, but its role in embryonic development is not well understood. We generated hnRNP A1 knockout mice to study the function of hnRNP A1 in vivo. The hnRNP A1-depleted mice showed embryonic lethality because of muscle developmental defects. In a previous study, cellular hnRNP A2/B1 was reported to be capable of compensating for the expression of hnRNP A1. However, this phenomenon did not occur in the hnRNP A1 heterozygous mice in vivo. We demonstrated that hnRNP A1 regulated muscle-related genes expression and alternative splicing. In summary, our data demonstrated that hnRNP A1 plays a critical role in embryonic muscle development. Understanding the effects of hnRNP A1 in vivo may help to define the function of hnRNP A1 in alternative splicing.
2016-12-05 | GSE79076 | GEO
Project description:Transcription profiling of human HeLa cells (cervical cancer cell line) transfected with a plasmid expressing shRNAs cloned into the pSuper expression vector compared to emprty vector negative controls for transfection. Four different RNA interference treatments targetted: A1 hnRNP (HNRNPA1, Heterogeneous nuclear ribonucleoprotein A1); FUS (fusion gene, involved in t(12;16) in malignant liposarcoma); H hnRNP (HNRNPH1); and p68 helicase (DDX5, DEAD (Asp-Glu-Ala-Asp) box polypeptide 5). Keywords: genetic modification
2008-08-20 | GSE12058 | GEO
Project description:Transcription profiling of human HeLa cells (cervical cancer cell line) transfected with a plasmid expressing shRNAs cloned into the pSuper expression vector compared to emprty vector negative controls for transfection. Four different RNA interference treatments targetted: A1 hnRNP (HNRNPA1, Heterogeneous nuclear ribonucleoprotein A1); FUS (fusion gene, involved in t(12;16) in malignant liposarcoma); H hnRNP (HNRNPH1); and p68 helicase (DDX5, DEAD (Asp-Glu-Ala-Asp) box polypeptide 5). Keywords: genetic modification Five-condition experiment, where HNRNPA1, FUS, HNRNPH1 and DDX5 gene product levels were inhibited by siRNA transfection and compared to transfection with the negative control (scrambled siRNA). Biological replicates: 2 of each of the first three treatments and 3 of the treatment against DDX5, all independently grown and harvested. No technical replicates were performed.
2008-08-20 | E-GEOD-12058 | biostudies-arrayexpress
Project description:Comparison of Hepatocyte nuclear factor 4 alpha developmental and temporal knockout mice
| PRJNA151005 | ENA
Project description:The canonical mammalian mRNA nuclear export process is thought to terminate at the cytoplasmic face of the nuclear pore complex through ribonucleoprotein remodeling. We conducted a stringent affinity-purification mass-spectrometry-based screen of the physical interactions of human RNA-binding E3 ubiquitin ligases. The resulting protein-interaction network revealed interactions between the RNA-binding E3 ubiquitin ligase MKRN2 and GLE1, a DEAD-box helicase activator implicated in mRNA export termination. We assessed MKRN2 epistasis with GLE1 in a genetically tractable zebrafish model. Morpholino-mediated knockdown or CRISPR/Cas9-based knockout of MKRN2 partially rescued retinal developmental defects seen upon GLE1 depletion, consistent with a functional association between GLE1 and MKRN2. Using ribonomic approaches, we showed that MKRN2 binds selectively to the 3'UTR of a diverse subset of mRNAs and that nuclear export of MKRN2-associated mRNAs is enhanced upon knockdown of MKRN2. Taken together, we suggest that MKRN2 interacts with GLE1 to selectively regulate mRNA nuclear export and retinal development.
2020-05-29 | PXD017541 | Pride
Project description:Post-transcriptional regulatory networks are dependent on the interplay of many RNA-binding proteins having a major role in mRNA processing events in mammals. We have been interested in the concerted action of the two RNA-binding proteins hnRNP A1 and HuR, both stable components of immunoselected hnRNP complexes and having a major nuclear localization. Specifically, we present here the application of the RNA-immunoprecipitation (RIP)-Chip technology to identify a population of nuclear transcripts associated with hnRNP A1-RNPs as isolated from the nuclear extract of either HuR WT or HuR-depleted (KO) mouse embryonic fibroblast (MEF) cells. The outcome of this analysis was a list of target genes regulated via HuR for their association (either increased or reduced) with the nuclear hnRNP A1-RNP complexes. Real time PCR analysis was applied to validate a selected number of nuclear mRNA transcripts, as well as to identify pre-spliced transcripts (in addition to their mature mRNA counterpart) within the isolated nuclear hnRNP A1-RNPs. The differentially enriched mRNAs were found to belong to GO categories relevant to biological processes anticipated for hnRNP A1 and HuR (such as transport, transcription, translation, apoptosis and cell cycle) indicative of their concerted function in mRNA metabolism. Ribonucleoprotein Immunoprecipitation (RIP) using hnRNP A1 specific antibody was performed in nuclear extracts from HuR WT and HuR KO Mouse Embryonic Fibroblasts (MEFs). RNA isolated from these IPs together with nuclear RNA from the two cell types, was subjected to microarray analysis. Three biological replicates, representing three independent experiments, are available for each condition except in the case of nuclear RNA isolated from HuR WT MEFs that one replicate didn’t pass the quality control.
2013-11-01 | E-GEOD-49225 | biostudies-arrayexpress
Project description:We report skeletal muscle developmental defects in SRSF2 MyoD-Cre mice, in which SRSF2 is ablated in skeletal muscle.
2023-06-02 | GSE151946 | GEO