Ontology highlight
ABSTRACT:
PROVIDER: PRJNA603129 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:<p>Despite the nuclear localization of the m6A machinery, the genomes of multiple exclusively-cytoplasmic RNA viruses, such as chikungunya (CHIKV) and dengue (DENV), are reported to be extensively m6A-modified. However, these findings are mostly based on m6A-seq, an antibody-dependent technique with a high rate of false positives. Here, we addressed the presence of m6A in CHIKV and DENV RNAs. For this, we combined m6A-seq and the antibody-independent SELECT and nanopore direct RNA sequencing techniques with functional, molecular, and mutagenesis studies. Following this comprehensive analysis, we found no evidence of m6A modification in CHIKV or DENV transcripts. Furthermore, depletion of key components of the host m6A machinery did not affect CHIKV or DENV infection. Moreover, CHIKV or DENV infection had no effect on the m6A machinery’s localization. Our results challenge the prevailing notion that m6A modification is a general feature of cytoplasmic RNA viruses and underscore the importance of validating RNA modifications with orthogonal approaches.</p>
2024-01-25 | MTBLS6978 | MetaboLights
Project description:Nanopore long and direct RNA-seq of coronaviruses
| PRJEB33797 | ENA
Project description:direct RNA seq of adenovirus mRNA using nanopore
| PRJEB34619 | ENA
Project description:In this study, based on Nanopore direct RNA-seq where native RNAs are sequenced directly as near full-length transcripts in the 3' to 5' direction, transcription units of the phytopathogen Dickeya dadantii 3937 were validated and transcriptional termination sites were determined. Briefly, D. dadantii cultures were grown in M63 medium supplemented with 0.2% glucose and 0.2% PGA, until the early exponential phase (A600nm = 0.2, condition 1), or the early stationary phase (A600nm = 1.8, condition 2). RNAs were extracted using a frozen acid-phenol method, as previously described (Hommais et al. 2008), and treated successively with Roche and Biolabs DNases. Two samples were prepared: 50 µg of RNAs from each condition were pulled into one sample (sample 1), whereas the other one contained 100 µg of RNAs from condition 2 (sample 2). Both samples were then supplied to Vertis Biotechnologie AG for Nanopore native RNA-seq: total RNA preparations were first examined by capillary electrophoresis. For sample 1, ribosomal RNA molecules were depleted using an in-house developed protocol (recovery rate = 84%), whereas no ribodepletion was performed for sample 2. 3' ends of RNA were then poly(A)-tailed using poly(A) polymerase, and the Direct RNA sequencing kit (SQK-RNA002) was used to prepare the library for 1D sequencing on the Oxford Nanopore sequencing device. The direct RNA libraries were sequenced on a MinION device (MIN-101B) using standard settings. Basecalling of the fast5 files was performed using Guppy (version 3.6.1) with the following settings: --flowcell FLO-MIN106 --kit SQK-RNA002 --cpu_threads_per_caller 12--compress_fastq --reverse_sequence true --trim_strategy rna. Reads smaller than 50 nt were removed. 466 393 and 556 850 reads were generated for sample 1 and 2, respectively.
2022-01-01 | E-MTAB-10482 | biostudies-arrayexpress
Project description:To identify full-length cap-to-poly(A) mRNA isoforms of CD20 and rule out reverse transcription artifacts which are common in cDNA-seq approaches, long-read Oxford Nanopore direct RNA sequencing was performed on the Raji cell line.
2023-12-08 | GSE243920 | GEO
Project description:CoA tagSeq, Nanopore direct RNA sequencing data
| PRJEB46858 | ENA
Project description:Pseudouridine-chemical probes-Nanopore direct RNA sequencing
| PRJEB51316 | ENA