CLIP of mRNA capping enzyme CMTR2 in drosophila melanogaster
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PROVIDER: PRJNA577645 | ENA |
REPOSITORIES: ENA
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Project description:CLIP of mRNA capping enzyme CMTR1 in Drosophila melanogaster
| PRJNA751571 | ENA
Project description:The mRNA cap structure consists of the m7G "cap0" linked to the 5'-most nucleotide of the initial mRNA. The first two nucleotides of mRNA can be 2'-O-Ribose modified to form cap1 or cap2 structures. Here, mRNA was sequenced after CLIP with tagged recombinant CMTR2 enzyme and compared to input RNA.
2021-12-18 | GSE138868 | GEO
Project description:The mRNA cap structure consists of the m7G "cap0" linked to the 5'-most nucleotide of the initial mRNA. The first two nucleotides of mRNA can be 2'-O-Ribose modified to form cap1 or cap2 structures. Here, mRNA was sequenced after CLIP with tagged recombinant CMTR1 and compared to input RNA.
2021-12-18 | GSE181321 | GEO
Project description:The analysis of capped RNAs by massively parallel sequencing has identified a large number of previously unknown transcripts, some of which are small RNAs and others are 5M-bM-^@M-^Y truncated forms of RefSeq genes. The latter may be generated by endonuclease cleavage or by stalling of Xrn1 at defined sites. With the exception of promoter-proximal transcripts the caps on all of these are added post-transcriptionally by a cytoplasmic capping enzyme complex that includes capping enzyme and a kinase that converts 5M-bM-^@M-^Y-monophosphate ends to a diphosphate capping substrate. We previously described a modified form of capping enzyme with dominant negative activity against cytoplasmic capping (DN-cCE). A tet-inducible form of this was used to identify substrates for cytoplasmic capping by treating cytoplasmic RNA from control and induced cells with and without Xrn1. Surviving RNA was analyzed on Affymetrix Human Exon 1.0 arrays and scored for changes in probe intensity as a function of its position on each RefSeq gene to derive a factor (alpha) that could be compared between sets. Notably, transcriptome-wide changes were not evident unless RNA was treated with Xrn1. This analysis identified 2,666 uncapped mRNAs in uninduced cells, 672 mRNAs that appeared in the uncapped pool in cells expressing DN-cCE, and 835 mRNAs that were in both populations. Changes in cap status of 10 re-capping targets and 5 controls were assessed by 3 independent measures; susceptibility to Xrn1, recovery with a biotin-tagged DNA primer after ligating a complementary RNA oligonucleotide to uncapped 5M-bM-^@M-^Y ends, and binding or exclusion from a high affinity cap-binding matrix comprised of immobilized eIF4E and the corresponding binding domain of eIF4G. 3 biological replicates of 4 different samples comparing XRN1 treatment/non-treatment and Dox induction/non-induction of K294A
2012-12-20 | E-GEOD-36729 | biostudies-arrayexpress
Project description:The analysis of capped RNAs by massively parallel sequencing has identified a large number of previously unknown transcripts, some of which are small RNAs and others are 5’ truncated forms of RefSeq genes. The latter may be generated by endonuclease cleavage or by stalling of Xrn1 at defined sites. With the exception of promoter-proximal transcripts the caps on all of these are added post-transcriptionally by a cytoplasmic capping enzyme complex that includes capping enzyme and a kinase that converts 5’-monophosphate ends to a diphosphate capping substrate. We previously described a modified form of capping enzyme with dominant negative activity against cytoplasmic capping (DN-cCE). A tet-inducible form of this was used to identify substrates for cytoplasmic capping by treating cytoplasmic RNA from control and induced cells with and without Xrn1. Surviving RNA was analyzed on Affymetrix Human Exon 1.0 arrays and scored for changes in probe intensity as a function of its position on each RefSeq gene to derive a factor (alpha) that could be compared between sets. Notably, transcriptome-wide changes were not evident unless RNA was treated with Xrn1. This analysis identified 2,666 uncapped mRNAs in uninduced cells, 672 mRNAs that appeared in the uncapped pool in cells expressing DN-cCE, and 835 mRNAs that were in both populations. Changes in cap status of 10 re-capping targets and 5 controls were assessed by 3 independent measures; susceptibility to Xrn1, recovery with a biotin-tagged DNA primer after ligating a complementary RNA oligonucleotide to uncapped 5’ ends, and binding or exclusion from a high affinity cap-binding matrix comprised of immobilized eIF4E and the corresponding binding domain of eIF4G.
2012-12-20 | GSE36729 | GEO
Project description:Measurement of capping efficiency (by 5'CAP and 5'noCAP sequencing) in male (S2) and female (Kc) Drosophila melanogaster cells upon depletion of MSL1 by dsRNA compared to the eGFP RNAi control. The measurement of capping efficiency was combined with gene expression measurement by strand specific RNA-Seq in female (Kc) Drosophila melanogaster cells
2023-09-30 | E-MTAB-2235 | biostudies-arrayexpress
Project description:Formaldehyde crosslinking and Proximity-dependent biotinylation methods were applied to study the cytoplasmic capping enzyme interactome via 1D-LC-MS/MS. The raw data were searched against Uniprot human database modified to contain our designed protein sequences using the Thermo Proteome Discoverer software (v 1.4.1.14).
2018-08-30 | PXD010368 | JPOST Repository
Project description:We have identified two previously uncharacterized proteins involved in telomerase biogenesis. Both proteins are required for telomerase activity and telomere length maintenance. We named these proteins Thc1 (Telomerase Holoenzyme Component 1) and Bmc1 (Bin3/MePCE 1) based on structural and sequence similarities to the nuclear cap binding complex and the methyl phosphate capping enzyme (Bin3/MePCE) in metazoans, respectively. Thc1 and Bmc1 function together with Pof8 in recognizing telomerase RNA and promoting the recruitment of the Lsm2-8 complex and the catalytic subunit to assemble functional telomerase.
2021-05-22 | GSE174822 | GEO
Project description:Eukaryotic messenger RNAs (mRNAs) possess a 5’-end N7-methyl guanosine (m7G) cap that promotes their translation and stability. However, it was recently demonstrated that eukaryotic mRNAs can also carry a 5' end nicotinamide adenine dinucleotide (NAD+) cap that promotes mRNA decay mediated by the NAD+ decapping enzyme DXO1. However, the dynamic regulation of NAD+ capping in plant remains unknown. Here, we describe the global landscape of NAD+-capped RNAs in Arabidopsis thaliana, and demonstrate that DXO1 is responsible for removal of these 5’-end modifications and facilitates mRNA degradation in plant transcriptomes. We also reveal that in the absence of DXO1 NAD+-capped mRNAs are unstable and processed into smRNAs. Furthermore, we find that Abscisic Acid (ABA) remodel the landscape of RNA cap epitransciptome, and the mRNA lost their NAD+ cap contribute to their stability under ABA. Overall, our results support a link between ABA response and RNA NAD+ capping.
2020-11-23 | GSE142389 | GEO
Project description:Human paraoxonase-1 (PON1) is an enzyme with lactonase, esterase and phosphotriesterase activity that has been associated with multiple phenotypes. We expressed hPON1 ubiquitously in Drosophila melanogaster using the Gal4 system Tub driver.
2011-05-26 | GSE29534 | GEO