Evidence map›Paper›PMID 31147702›Full record

ArticleNucleic acids research2019

Pseudouridines on Trypanosoma brucei spliceosomal small nuclear RNAs and their implication for RNA and protein interactions.

K Shanmugha Rajan, Tirza Doniger, Smadar Cohen-Chalamish, Dana Chen, Oz Semo, Saurav Aryal, Efrat Glick Saar, Vaibhav Chikne, Doron Gerber, Ron Unger and 2 more

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.2field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 43 citations in OpenAlex.

  1. Ψ-Atlas: An Integrated Atlas for Pseudouridine Epitranscriptome.Genomics, proteomics & bioinformatics · 2026
    Article
  2. Functions and therapeutic applications of pseudouridylation.Nature reviews. Molecular cell biology · 2025
    Review
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  17. Genome instability drives epistatic adaptation in the human pathogenProceedings of the National Academy of Sciences of the United States of America · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 2 countries.

K Shanmugha RajanThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Tirza DonigerThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Smadar Cohen-ChalamishThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Dana ChenThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Oz SemoThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Saurav AryalThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Efrat Glick SaarSheba Medical Center, Tel-HaShomer 5265601, Israel.
Vaibhav ChikneThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Doron GerberThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Ron UngerThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Christian TschudiDepartmentof Epidemiology and Microbial Diseases, Yale School of Public Health, New Haven, CT 06536, USA.
Shulamit MichaeliThe Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 52900, Israel.
Bar-Ilan University · ILSheba Medical Center · ILYale University · US

Funding

TRANSCRIPTION AND RNA PROCESSING IN TRYPANOSOMESR01AI028798 · NIAID · YALE UNIVERSITY · PI TSCHUDI, CHRISTIAN · 1990 to 2020
$10.9M
Mechanism of Infectivity Acquisition in African TrypanosomesR01AI110325 · NIAID · YALE UNIVERSITY · PI TSCHUDI, CHRISTIAN · 2014 to 2023
$4.4M
NIAID NIH HHS R01 AI028798NIAID NIH HHS R01 AI110325
6 · The paper itself

Abstract

The parasite Trypanosoma brucei, the causative agent of sleeping sickness, cycles between an insect and a mammalian host. Here, we investigated the presence of pseudouridines (Ψs) on the spliceosomal small nuclear RNAs (snRNAs), which may enable growth at the very different temperatures characterizing the two hosts. To this end, we performed the first high-throughput mapping of spliceosomal snRNA Ψs by small RNA Ψ-seq. The analysis revealed 42 Ψs on T. brucei snRNAs, which is the highest number reported so far. We show that a trypanosome protein analogous to human protein WDR79, is essential for guiding Ψ on snRNAs but not on rRNAs. snoRNA species implicated in snRNA pseudouridylation were identified by a genome-wide approach based on ligation of RNAs following in vivo UV cross-linking. snRNA Ψs are guided by single hairpin snoRNAs, also implicated in rRNA modification. Depletion of such guiding snoRNA by RNAi compromised the guided modification on snRNA and reduced parasite growth at elevated temperatures. We further demonstrate that Ψ strengthens U4/U6 RNA-RNA and U2B"/U2A' proteins-U2 snRNA interaction at elevated temperatures. The existence of single hairpin RNAs that modify both the spliceosome and ribosome RNAs is unique for these parasites, and may be related to their ability to cycle between their two hosts that differ in temperature.

Indexed as

AnimalsBase SequenceHumansProtein BindingProtozoan ProteinsPseudouridineRibonucleoproteins, Small NuclearRNA, RibosomalRNA, Small NuclearRNA, Small NucleolarSpliceosomesTrypanosoma brucei bruceiProtozoan ProteinsPseudouridineRibonucleoproteins, Small NuclearRNA, RibosomalRNA, Small NuclearRNA, Small Nucleolar

Identifiers

PMID31147702
PMCPMC6698659
OpenAlexW2947963640

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.