Evidence map›Paper›PMID 21321080›Full record

ArticleMolecular and cellular biology2011

Epigenetic regulation of transcription and virulence in Trypanosoma cruzi by O-linked thymine glucosylation of DNA.

Dilrukshi K Ekanayake, Todd Minning, Brent Weatherly, Kapila Gunasekera, Daniel Nilsson, Rick Tarleton, Torsten Ochsenreiter, Robert Sabatini

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Virulence · 2022
    Article
  5. Localization of Epigenetic Markers inPathogens (Basel, Switzerland) · 2022
    Article
  6. Article
  7. Article
  8. Review
  9. CRISPR-Mediated Epigenome Editing.The Yale journal of biology and medicine · 2016
    Review
  10. Article
  11. Novel genomic island modifies DNA with 7-deazaguanine derivatives.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Dilrukshi K EkanayakeDepartment of Biochemistry and Molecular Biology, University of Georgia, 120 Green Street, Life Sciences Building, Athens, GA 30602-7229, USA.
Todd Minning
Brent Weatherly
Kapila Gunasekera
Daniel Nilsson
Rick Tarleton
Torsten Ochsenreiter
Robert Sabatini
University of Georgia · USUniversity of Bern · CH

Funding

VACCINE DISCOVERY FOR TRYPANOSOMA CRUZIP01AI044979 · NIAID · UNIVERSITY OF GEORGIA (UGA) · PI TARLETON, RICK L · 1999 to 2008
$7.5M
Biosynthesis and Function of Base JR01AI063523 · NIAID · UNIVERSITY OF GEORGIA · PI SABATINI, ROBERT S · 2006 to 2010
$1.6M
Biosynthesis and function of base J in T. bruceiR56AI063523 · NIAID · UNIVERSITY OF GEORGIA · PI SABATINI, ROBERT S · 2011 to 2011
$384k
NIAID NIH HHS AI044979NIAID NIH HHS AI063523NIAID NIH HHS P01 AI044979NIAID NIH HHS R01 AI063523NIAID NIH HHS R56 AI063523
6 · The paper itself

Abstract

Unlike other eukaryotes, the protein-coding genes of Trypanosoma cruzi are arranged in large polycistronic gene clusters transcribed by polymerase II (Pol II). Thus, it is thought that trypanosomes rely solely on posttranscriptional processes to regulate gene expression. Here, we show that the glucosylated thymine DNA base (β-d-glucosyl-hydroxymethyluracil or base J) is present within sequences flanking the polycistronic units (PTUs) in T. cruzi. The loss of base J at sites of transcription initiation, via deletion of the two enzymes that regulate base J synthesis (JBP1 and JBP2), correlates with an increased rate of Pol II transcription and subsequent genome-wide increase in gene expression. The affected genes include virulence genes, and the resulting parasites are defective in host cell invasion and egress. These studies indicate that base J is an epigenetic factor regulating Pol II transcription initiation in kinetoplastids and provides the first biological role of the only hypermodified DNA base in eukaryotes.

Indexed as

Epigenesis, GeneticTranscription, GeneticDNA, ProtozoanGlycosylationOligonucleotide Array Sequence AnalysisThymineTrypanosoma cruziVirulenceDNA, ProtozoanThymine

Identifiers

PMID21321080
PMCPMC3126337
OpenAlexW2118915580

What OpenQuestion holds

Textmetadata
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.