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Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling by high throughput sequencing of HNRNPC knockdown and control HeLa cells

ABSTRACT: We performed RNA-seq experiments on two replicate samples from each HNRNPC knockdown (KD1 and KD2) As well as from control HeLa cells. Library preparation was preformed according to mRNA Sequencing Sample Preparation Guide (Illumina, Part # 1004898 REV. D). Reagents were taken from the Illumina sample preparation kit (Illumina, CAT # RS-930-1001). Knockdown and control samples were sequenced together in one flowcell on one and two lanes, respectively.

ORGANISM(S): Homo sapiens

SUBMITTER: Julian Konig

PROVIDER: E-MTAB-1147 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Direct competition between hnRNP C and U2AF65 protects the transcriptome from the exonization of Alu elements.

Zarnack Kathi K König Julian J Tajnik Mojca M Martincorena Iñigo I Eustermann Sebastian S Stévant Isabelle I Reyes Alejandro A Anders Simon S Luscombe Nicholas M NM Ule Jernej J

Cell 20130101 3

There are ~650,000 Alu elements in transcribed regions of the human genome. These elements contain cryptic splice sites, so they are in constant danger of aberrant incorporation into mature transcripts. Despite posing a major threat to transcriptome integrity, little is known about the molecular mechanisms preventing their inclusion. Here, we present a mechanism for protecting the human transcriptome from the aberrant exonization of transposable elements. Quantitative iCLIP data show that the RN ...[more]

PMID: 23374342

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Transcriptome-wide mapping of hnRNP C and U2AF65 using iCLIP

Project description:iCLIP experiment to assess the binding of the highly abundant nuclear RNA-binding protein hnRNP C and core splicing factor U2AF65 on a genomic scale. To investigate how both proteins compete for binding at a subset of sites, U2AF65 iCLIP experiments were performed from both HNRNPC knockdown and control HeLa cells.

2013-01-31 | E-MTAB-1371 | biostudies-arrayexpress

Expression data from mouse ES cells after control RNAi (scramble siRNAs) or specific RNAi (siRNAs for specific genes) treatment

Project description:To address the functional role of MOF in mammalian X upregulation, male and female mouse ES cells were transfected with a mixture of three small interfering RNA duplexes, each of which targets a different region of Mof mRNA. We found that MOF knockdown in mouse ES cells caused a greater drop in expression of X-linked genes compared to autosomal genes, as measured by expression array analyses. The strongest effect was observed on medium-expressed X-linked genes. We next examined components of the two known MOF protein complexes, MSL1 (male-specific lethal1) and NSL1 (nonspecific lethal1). Knockdown of MSL1 but not NSL1 in undifferentiated female ES cells PGK12.1 specifically caused a decrease in expression levels of X-linked genes. Cells co-transfected with both MOF and MSL1 siRNAs had similar expression changes to MSL1 knockdown alone, indicating that these components probably operate within the same complex but are not additive. Our findings that key components of the MSL but not NSL complex play a role in upregulation of mammalian X-linked genes in ES cells. Mouse ES cells were treated by Invitrogen scramble siRNA duplexes or specific siRNA duplexes and used for RNA extraction and hybridization on Affymetrix microarrays. Six RNA samples from two independent double-RNAi treatments and one single-RNAi treatment in undifferentiated female ES cells PGK12.1, and RNA samples from two single-RNAi treatments in undifferentiated male ES cells WD44 or E14 were assayed for expression changes by arrays. RNA samples from three MSL1RNAi treatments, two MOF/MSL1RNAi treatments and three NSL1RNAi treatments in undifferentiated female ES cells PGK12.1 were assayed by arrays.

2013-02-15 | E-GEOD-44252 | biostudies-arrayexpress

Expression data from mouse ES cells after control RNAi (scramble siRNAs) or RNAi specific for Kdm6a treatment.

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2013-03-13 | E-GEOD-45034 | biostudies-arrayexpress

Transcription profiling : Stable knockdown CUX1 knockdown in LOUCY cells lines

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2018-05-01 | E-MTAB-6204 | biostudies-arrayexpress

meiose non oriented RNA-Seq data

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2014-01-31 | E-MTAB-2114 | biostudies-arrayexpress

Transcriptome 3' end profiling by high throughput sequencing of HeLa cells depleted of MATR3, PTBP1/2 individually or in combination.

Project description:We performed mRNA 3'end sequencing experiments on three biological replicates of HeLa cells depleted of MATR3, PTBP1/2, controls, or combined depletion of MATR3/PTBP1/2. Cells were fractionated into cytoplasmic and nuclear RNAn and only the nuclear RNA was used. Library preparation was done with the QuantSeq library kit (Lexogen) according to manufacturer’s recommendations. Replicates 1 and 2 were prepared with the QuantSeq forward library kit, replicates 3 and 4 with the QuantSeq reverse library kit. All libraries were sequenced on Illumina HiSeq2 machines in a single-end manner with a read length of 100 nt.

2018-05-01 | E-MTAB-6287 | biostudies-arrayexpress

RNAi knock down of VCP in human HeLa cells

Project description:Study of the effects of the VCP knockdown. VCP (p97, yeast cdc48) is a hexameric AAA ATPase involved in various cellular functions including degradation of proteins by the ubiquitin-proteasome system. We examine the consequences of the reduction of VCP levels after RNAi of VCP in HeLa cells. We find ~30 transcripts upregulated in a sequence independent manner. Those transcripts encode proteins involved in endoplasmic reticulum stress, apoptosis, and amino acid starvation.

2006-08-23 | E-MEXP-817 | biostudies-arrayexpress

Adiponectin regulates expression of hepatic genes critical for glucose and lipid metabolism.

Project description:The effects of adiponectin on hepatic glucose and lipid metabolism at transcriptional level are largely unknown. We profiled hepatic gene expression in adiponectin knockout (KO) and wild-type (WT) mice by RNA-Seq. Comparing to WT mice, adiponectin KO mice exhibited decreased mRNA expression of rate-limiting enzymes in several important glucose and lipid metabolic pathways including glycolysis, TCA cycle, fatty-acid activation and synthesis, triglyceride synthesis and cholesterol synthesis. In addition, binding of the transcription factor Hnf4a to DNAs encoding several key metabolic enzymes was reduced in KO mice, suggesting that adiponectin might regulate hepatic gene expression via Hnf4a. Phenotypically, adiponectin KO mice possessed smaller epididymal fat pads and showed reduced body weights comparing to WT mice. When fed a high fat diet, adiponectin KO mice showed significantly reduced lipid accumulation in the livers. These lipogenic defects are consistent with the downregulation of lipogenic genes in the KO mice. Mice were fasted overnight before euthanization. Liver tissues from WT or adiponectin KO male mice (n = 9-10) at 12 weeks of age were harvested and subjected to total RNA extraction using an RNeasy Plus Mini Kit (Qiagen, Valencia, CA). Total RNA from nine to ten mice of the same strain was pooled together as one biological sample. The mRNA sequencing samples were prepared using the Illumina sample preparation protocol (RS-930-1001, Illumina, Inc. San Diego, CA). The cDNA fragments of 200–250 bp were purified on an agarose gel and then enriched by PCR with Phusion polymerase. The cDNA libraries were sequenced by an Illumina Genome analyzer II at the Whitehead Genome Technology Core.

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2011-12-01 | E-GEOD-32064 | biostudies-arrayexpress

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