Proteomics

Dataset Information

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Pytheas S. cerevisiae 18S rRNA sample analysis


ABSTRACT: Mass spectrometry remains an important method for analysis of modified nucleosides ubiquitously present in cellular RNAs, in particular for ribosomal and transfer RNAs that play crucial roles in mRNA translation and decoding. Furthermore, modifications have effect on the lifetimes of nucleic acids in plasma and cells and are consequently incorporated into RNA therapeutics. To provide an analytical tool for sequence characterization of modified RNAs, we developed Pytheas, an open-source software package for automated analysis of tandem MS data for RNA. This dataset contains the analysis of S. cerevisiae 18S RNA, with identification of pseudouridines through a custom 2H isotopic labeling schema.

INSTRUMENT(S): 6520A Quadrupole Time-of-Flight LC/MS

ORGANISM(S): Saccharomyces Cerevisiae (baker's Yeast)

SUBMITTER: Luigi D'Ascenzo  

LAB HEAD: James R. Williamson

PROVIDER: PXD030563 | Pride | 2022-05-04

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
18SRNA.rdn18.fasta Fasta
18S_yeast_56DU_N14N15_20pmol.mgf Mgf
80SRNAmodlist.txt Txt
Digest_18S_yeast.txt Txt
match_output_18S_yeast_56DU_N14N15_20pmol.txt Txt
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Publications

Pytheas: a software package for the automated analysis of RNA sequences and modifications via tandem mass spectrometry.

D'Ascenzo Luigi L   Popova Anna M AM   Abernathy Scott S   Sheng Kai K   Limbach Patrick A PA   Williamson James R JR  

Nature communications 20220503 1


Mass spectrometry is an important method for analysis of modified nucleosides ubiquitously present in cellular RNAs, in particular for ribosomal and transfer RNAs that play crucial roles in mRNA translation and decoding. Furthermore, modifications have effect on the lifetimes of nucleic acids in plasma and cells and are consequently incorporated into RNA therapeutics. To provide an analytical tool for sequence characterization of modified RNAs, we developed Pytheas, an open-source software packa  ...[more]

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