PP1-NIPP1 wild type and mutant overexpression in Flip-In™ T-Rex Hela cells
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA412362 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR6081870.fastq.gz | Fastqsanger.gz | |||
| SRR6081880.fastq.gz | Fastqsanger.gz | |||
| SRR6081861.fastq.gz | Fastqsanger.gz | |||
| SRR6081871.fastq.gz | Fastqsanger.gz | |||
| SRR6081881.fastq.gz | Fastqsanger.gz |
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Project description:RNAi-seq of stable Flp-In™ T-Rex Hela cells that inducibly expressed PP1-NIPP1 and mutants.
2018-06-28 | GSE104320 | GEO
Project description:The deletion of the protein phosphatase-1 (PP1) regulator NIPP1 is embryonic lethal during gastrulation, hinting at a key role of PP1-NIPP1 in lineage specification. Consistent with this notion we show here that a mild, stable overexpression of NIPP1 in HeLa cells caused a massive induction of genes of the mesenchymal lineage, in particular smooth/cardiac-muscle and matrix markers. This reprogramming was associated with the formation of actin-based stress fibers and retracting filopodia, and a reduced proliferation potential. The NIPP1-induced mesenchymal transition required functional substrate and PP1-binding domains, suggesting that it involves the selective dephosphorylation of substrates of PP1-NIPP1.
2015-04-04 | GSE67558 | GEO
Project description:The deletion of the protein phosphatase-1 (PP1) regulator NIPP1 is embryonic lethal during gastrulation, hinting at a key role of PP1-NIPP1 in lineage specification. Consistent with this notion we show here that a mild, stable overexpression of NIPP1 in HeLa cells caused a massive induction of genes of the mesenchymal lineage, in particular smooth/cardiac-muscle and matrix markers. This reprogramming was associated with the formation of actin-based stress fibers and retracting filopodia, and a reduced proliferation potential. The NIPP1-induced mesenchymal transition required functional substrate and PP1-binding domains, suggesting that it involves the selective dephosphorylation of substrates of PP1-NIPP1. In total 16 samples were processed. Four different cell lines were analysed: HTO_parental, HTO_NIPP1wt, HTO_NIPP1m (= alias NIPP1-Pm) and HTO_NIPP1-Pa. For each cell line 4 replicates were obtained. The HTO_parental cell line is the control cell line. For the HTO_NIPP1wt and the HTO_NIPP1-Pa the 4 replicates were obtained from two replicates of two different transgenic cell lines expressing FlagNIPP1wt (cell line wt n°1 and 2) and FlagNIPP1-Pa (cell line n°1 and 2), respectively. Each cell line was derived from the same parental control cell line.
2015-04-04 | E-GEOD-67558 | biostudies-arrayexpress
Project description:NIPP1, an established interactor of protein phosphatase 1 (PP1), is implicated in PRC2-mediated regulation of gene expression. Here, we explore whether PP1 associated with NIPP1 is involved in NIPP1-mediated regulation of genes. Therefore, we generated Hela Tet-off (HTO) cell lines that stably and inducibly express a Flag-tagged version of wild-type NIPP1 (HTO-NIPP1wt) or mutant NIPP1 (HTO_NIPP1m). The latter mutant lacks the major PP1 binding site by two point mutations in the RVXF-motif, an established PP1 - binding motif. All cell lines were derived from the same parental HeLa Tet-Off (HTO-PT) cell line which expresses only tTA transactivator and is used as a control. The Flag fusions were only expressed in the absence of doxycyline and at levels that were up to twofold higher than that of endogenous NIPP1. We performed a gene expression profiling of the HTO cell lines, using Whole Human Genome Oligo microarrays from Agilent. A Paired SAM analysis identified 1365 genes with an altered expression (P < 0.01) between the Flag-NIPP1 and parental cell lines. Importantly, only 185 genes were differentially expressed (P<0.01) between the Flag-NIPP1m and parental cell lines. Even more strikingly, only 5% of the genes that were affected by the expression of Flag-NIPP1 also showed a significantly different expression in the Flag-NIPP1m cells. A similar small overlap was noted when the analysis was restricted to the 50 genes that were most upregulated or downregulated by the expression of Flag-NIPP1. Finally, scatter plot analysis revealed no significant correlation between the genes that were affected by the expression of Flag-NIPP1 or Flag-NIPP1m. Collectively, these data demonstrate that a moderate increase in the concentration of NIPP1 affects the expression of numerous genes by a mechanism that depends on associated PP1.
2010-07-19 | GSE19642 | GEO
Project description:NIPP1, an established interactor of protein phosphatase 1 (PP1), is implicated in PRC2-mediated regulation of gene expression. Here, we explore whether PP1 associated with NIPP1 is involved in NIPP1-mediated regulation of genes. Therefore, we generated Hela Tet-off (HTO) cell lines that stably and inducibly express a Flag-tagged version of wild-type NIPP1 (HTO-NIPP1wt) or mutant NIPP1 (HTO_NIPP1m). The latter mutant lacks the major PP1 binding site by two point mutations in the RVXF-motif, an established PP1 - binding motif. All cell lines were derived from the same parental HeLa Tet-Off (HTO-PT) cell line which expresses only tTA transactivator and is used as a control. The Flag fusions were only expressed in the absence of doxycyline and at levels that were up to twofold higher than that of endogenous NIPP1. We performed a gene expression profiling of the HTO cell lines, using Whole Human Genome Oligo microarrays from Agilent. A Paired SAM analysis identified 1365 genes with an altered expression (P < 0.01) between the Flag-NIPP1 and parental cell lines. Importantly, only 185 genes were differentially expressed (P<0.01) between the Flag-NIPP1m and parental cell lines. Even more strikingly, only 5% of the genes that were affected by the expression of Flag-NIPP1 also showed a significantly different expression in the Flag-NIPP1m cells. A similar small overlap was noted when the analysis was restricted to the 50 genes that were most upregulated or downregulated by the expression of Flag-NIPP1. Finally, scatter plot analysis revealed no significant correlation between the genes that were affected by the expression of Flag-NIPP1 or Flag-NIPP1m. Collectively, these data demonstrate that a moderate increase in the concentration of NIPP1 affects the expression of numerous genes by a mechanism that depends on associated PP1. In total 12 samples were processed. Three different cell lines were analysed: HTO_parental, HTO_NIPP1wt and HTO_NIPP1m. For each cell line 4 replicates were obtained. The HTO_parental cell line is the control cell line. For the HTO_NIPP1wt the 4 replicates were obtained from two replicates of two different transgenic cell lines expressing FlagNIPP1wt (cell line wt n°1 and 2). Each cell line derived from the same parental control cell line.
2010-07-19 | E-GEOD-19642 | biostudies-arrayexpress
Project description:Protein phosphatase PP1-NIPP1 activates mesenchymal genes in HeLa cells
| PRJNA280252 | ENA
Project description:To gain unbiased insight into the association of NIPP1 with regulatory, coding and intergenic regions of the human genome, DamID experiments and subsequent analysis by ENCODE arrays were performed. The DamID method uses fusions of the bacterial Dam DNA methylase and the protein of interest, to direct the enzymatic activity to the protein’s genomic binding sites, where the DNA is methylated. Methylated DNA is then extracted, enriched and further analysed by microarray. The PP1 (Protein Phosphatase 1) interacting protein NIPP1 has been implicated to play a role in regulation of gene expression through PRC2 function, but also has a function in splicing. The array analysis was performed to obtain a general picture of the sites of chromatin association of NIPP1 and specifically their spatial relation to coding regions as well as to identify target regions to be analysed in more detail. In addition, a PP1 binding deficient mutant (NIPP1-RATA) was analysed, thus allowing to distinguish PP1 dependent and independent sites of association with the genome by microarray analysis. NIPP1-WT is referred to as FDN and the mutant referred to as RATA in the following descriptions.
2010-07-19 | GSE22123 | GEO
Project description:UPF3A and UPF3B are paralogous genes in human cells that are involved in the nonsense-mediated decay (NMD) pathway. NMD is a cellular quality control mechanism that monitors mRNAs during translation. Aberrant translation due to features such as the presence of a premature stop codon downstream on an exon-exon junction activates NMD and leads to the degradation of the mRNA. To investigate the role of UPF3B and UPF3A in NMD, we have generated UPF3A overexpressing human HeLa Flp-In T-REx cells using the PiggyBac transposon system. We generated RNA-Sequencing data for wild type and UPF3A overexpressing (OE) cells.
2022-04-25 | E-MTAB-11184 | biostudies-arrayexpress