Arabidopsis thaliana NusG IP-LCMS
Ontology highlight
ABSTRACT:
INSTRUMENT(S):
ORGANISM(S): Arabidopsis Thaliana (mouse-ear Cress)
TISSUE(S): Plant Cell, Leaf
SUBMITTER: 
haibo xiong
LAB HEAD: Qing-Bo Yu
PROVIDER: PXD028377 | Pride | 2022-06-24
REPOSITORIES: Pride
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| R20200800799_13_35SMYC_COIP.msf | Msf | |||
| peptides.xlsx | Xlsx | |||
| proteins.xlsx | Xlsx |
Items per page: 5 1 - 3 of 3 |
Similar Datasets
Project description:This SuperSeries is composed of the following subset Series: GSE41936: Rho and NusG suppress pervasive antisense transcription in Escherichia coli [ChIP-chip]. GSE41938: Rho and NusG suppress pervasive antisense transcription in Escherichia coli [tiling array]. GSE41939: Rho and NusG suppress pervasive antisense transcription in Escherichia coli [RNA-seq]. Refer to individual Series
2012-11-01 | E-GEOD-41940 | biostudies-arrayexpress
Project description:The in vivo trafficking patterns on DNA by the bacterial regulators of transcript elongation Sigma70, Rho, NusA, and NusG and the explanation for high promoter-proximal levels or peaks of RNA polymerase (RNAP) are unknown. Genome-wide ChIP-chip on E. coli revealed distinct association patterns of regulators as RNAP transcribes away from promoters (Rho first, then NusA, and then NusG). However, the interactions of elongating complexes with these regulators, including a weak interaction with Sigma70, did not differ significantly among most transcription units. A modest variation of NusG signal among genes reflected increased NusG interaction as transcription progresses, rather than functional specialization of elongating complexes. Promoter-proximal RNAP peaks were offset from Sigma70 peaks in the direction of transcription and co-occurred with NusA and Rho peaks, suggesting that the RNAP peaks reflected elongating, rather than initiating, complexes. However, inhibition of Rho did not increase RNAP levels within genes downstream of the RNAP peaks, suggesting the peaks are caused by a mechanism other than simple Rho-dependent attenuation. Chromatin immunoprecipitation (ChIP) experiments were performed using antibodies against RNA polymerase (Beta' subunit), Sigma70, NusA, NusG, or Rho. Differentially labeled ChIP DNA and genomic DNA were competitively hybridized to an E. coli K-12 MG1655 tiling array with overlapping probes at ~24bp spacing across the entire genome. The series contains 17 total datasets.
2010-05-14 | E-GEOD-13938 | biostudies-arrayexpress
Project description:A variety of small RNAs, including the Dicer-dependent miRNAs and the Dicer-independent Piwi-interacting RNAs, associate with Argonaute family proteins to regulate gene expression in diverse cellular processes. These two species of small RNA have not been found in fungi. Here, by analyzing small RNA associated with the Neurospora Argonaute protein QDE-2, we show that diverse pathways generate miRNA-like small RNAs (milRNAs) and Dicer-independent small interfering RNAs (disiRNAs) in this filamentous fungus. Surprisingly, milRNAs are produced by at least four different mechanisms that use a distinct combination of factors, including Dicers, QDE-2, the exonuclease QIP and an RNAse III domain-containing protein MRPL3. In contrast, disiRNAs originate from loci producing overlapping sense and antisense transcripts, and do not require the known RNAi components for their production. Taken together, these results uncover several pathways for small RNA production in filamentous fungi, shedding light on the diversity and evolutionary origins of eukaryotic small RNAs. One small RNA library was generated using QDE-2 immunoprecipitate from Neurospora crassa.
2010-07-01 | E-GEOD-21175 | biostudies-arrayexpress
Project description:Despite the prevalence of antisense transcripts in bacterial transcriptomes, little is known about how their synthesis is controlled. We report that a major function of the Escherichia coli termination factor Rho and its co-factor NusG is suppression of ubiquitous antisense transcription genome-wide. Rho binds C-rich unstructured nascent RNA (high C/G ratio) prior to its ATP-dependent dissociation of transcription complexes. NusG is required for efficient termination at minority subsets (~20%) of both antisense and sense Rho-dependent terminators with lower C/G ratio sequences. In contrast, a widely studied nusA deletion proposed to compromise Rho-dependent termination had no effect on antisense or sense Rho-dependent terminators in vivo. Global co-localization of the nucleoid-associated protein H-NS with Rho-dependent terminators and genetic interactions between hns and rho suggest that H-NS aids Rho in suppression of antisense transcription. The combined actions of Rho, NusG, and H-NS appear to be analogous to the Sen1-Nrd1-Nab3 and nucleosome systems that suppress antisense transcription in eukaryotes. Chromatin immunoprecipitation (ChIP) experiments were performed using antibodies against RNA polymerase (RNAP; Beta subunit) in wild-type cells or cells deleted for hns, nusG, or a partial deletion of nusA. Differentially labeled ChIP DNA and genomic DNA were competitively hybridized to an E. coli K-12 MG1655 tiling array with overlapping probes at ~12bp spacing across the entire genome. The series contains 12 datasets.
2012-11-01 | E-GEOD-41936 | biostudies-arrayexpress
Project description:Despite the prevalence of antisense transcripts in bacterial transcriptomes, little is known about how their synthesis is controlled. We report that a major function of the Escherichia coli termination factor Rho and its co-factor NusG is suppression of ubiquitous antisense transcription genome-wide. Rho binds C-rich unstructured nascent RNA (high C/G ratio) prior to its ATP-dependent dissociation of transcription complexes. NusG is required for efficient termination at minority subsets (~20%) of both antisense and sense Rho-dependent terminators with lower C/G ratio sequences. In contrast, a widely studied nusA deletion proposed to compromise Rho-dependent termination had no effect on antisense or sense Rho-dependent terminators in vivo. Global co-localization of the nucleoid-associated protein H-NS with Rho-dependent terminators and genetic interactions between hns and rho suggest that H-NS aids Rho in suppression of antisense transcription. The combined actions of Rho, NusG, and H-NS appear to be analogous to the Sen1-Nrd1-Nab3 and nucleosome systems that suppress antisense transcription in eukaryotes. Tiling expression microarray experiments were performed in cells treated with 20 ug/ml bicyclomycin or cells deleted for nusG, or a partial deletion of nusA. Labeled cDNAs were hybridized to an E. coli K-12 MG1655 tiling array with overlapping probes at ~12bp spacing across the entire genome. The series contains 14 datasets.
2012-11-01 | E-GEOD-41938 | biostudies-arrayexpress
Project description:In this work we conducted Term-seq on Wild Type, NusA depletion, nusG deletion, and NusA depletion nusG deletion strains of B. subtilis. Using this approach, we found that NusG is an intrinsic termination factor that works single and cooperatively with NusA.
2021-04-19 | GSE154522 | GEO
Project description:Impact of CDK4-deficiency on EM-BM-5-myc driven B-lymphoma By crossing mating CDK4 Knockout mice with EM-BM-5-myc mice,We found CDK4-deficiency enhances the EM-BM-5-myc induced B-lymphoma.We further to discover the molecular mechanism B-lymphoma cells form the cdk4+/+ EM-BM-5-myc and cdk4-/-EM-BM-5-myc mice and then culturing for RNA extraction and hybridization on Affymetrix microarrays.
2012-12-16 | E-GEOD-21683 | biostudies-arrayexpress
Project description:Pervasive Transcription originates from spurious promoters present in both orientations within coding sequences. Spurious transcripts are typically untranslated and thus for the most part are terminated by transcription termination factor Rho. They can be studied by impairing Rho activity, which in this study was achieved by depleting cells for Rho co-factor NusG. To this end, strains in which the only chromosomal copy of the nusG gene is transcribed from a promoter that can be repressed by arabinose (ARA) were used. This study was aimed at determining how pervasive transcription affect H-NS mediated gene silencing in Salmonella Pathogenicity Island 1 (SPI-1). In particular, the analysis concentrated on the region surrounding the master regulator gene HilD. The activities of promoters in this region were assessed performing semiquantitative 5’RACE-Seq. RNA extracted from cells exposed to the indicated treatments was reverse-transcribed with gene-specific primers in the presence of a template-switching oligonucleotide (TSO). The latter carries three 3’-terminal riboguanosines that hybridize to the polycytosine overhang (typically 3 or 4 Cs) added by the RT enzyme when it reaches the 5’ end of the RNA.This allows the RT enzyme to switch template and polymerise the TSO. Subsequent PCR amplification, with a primer complementary to the TSO and another annealing inside the reverse transcribed region, followed by sequence analysis, allows identifying the 5’ end of the RNA as the sequence lying immediately adjacent to the poly-G track. Performing the PCR step semiquantitatively provides information as to relative RNA levels. Here, the technique was adapted to high throughput sequencing by using PCR primers carrying Illumina adapters at their 5’ ends. Three strains were used, all three carrying the ARA-repressible nusG allele, MA12996, MA14302 and MA14358. This last strain carries a deleted version of SPI-1 with the Anhydrotetracycline (AHTc)-inducible Ptet promoter positioned at edge of the H-NS patch covering hilD, which made it possible to study the effects of NusG depletion in the presence or absence of overlapping transcription.
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Project description:RNAPII-S5P ChIP e4C was performed on mouse erythroid tissue, using the alpha and beta globin genes as baits
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