Evidence map›Paper›PMID 11604521›Full record

ArticleMolecular and cellular biology2001

Initiator recognition in a primitive eukaryote: IBP39, an initiator-binding protein from Trichomonas vaginalis.

D R Liston, A O Lau, D Ortiz, S T Smale, P J Johnson

Abstract read
In one paragraph

Article in Molecular and cellular biology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

17 citing papers in PubMed.

  1. Article
  2. Omics Analyses ofGenes · 2022
    Article
  3. Article
  4. Review
  5. Adenine DNA methylation, 3D genome organization, and gene expression in the parasiteProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Regulation of gene expression in protozoa parasites.Journal of biomedicine & biotechnology · 2010
    Review
  14. Article
  15. Article
  16. Article
  17. Article
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

5 authors.

D R ListonDepartment of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles School of Medicine, Los Angeles, California 90095-1489, USA.
A O Lau
D Ortiz
S T Smale
P J Johnson

Funding

UCLA NIGMS T32 Program AssessmentT32GM007185 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI TORRES, JORGE · 1985 to 2020
$21.7M
MULTIDISCIPLINARY TRAINING IN MICROBIAL PATHOGENESIST32AI007323 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Peter John Bradley · 1988 to 2026
$8.6M
Gene Expression in Trichomonas vaginalisR01AI030537 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI JOHNSON, PATRICIA JEAN · 1991 to 2008
$2.7M
NIAID NIH HHS AI07323NIAID NIH HHS AI30537NIAID NIH HHS R01 AI030537NIAID NIH HHS T32 AI007323NIGMS NIH HHS GM07185NIGMS NIH HHS T32 GM007185Wellcome Trust
6 · The paper itself

Abstract

While considerable progress has been made in understanding the mechanisms of transcription in higher eukaryotes, transcription in single-celled, primitive eukaryotes remains poorly understood. Promoters of protein-encoding genes in the parasitic protist Trichomonas vaginalis, which represents one of the deepest-branching eukaryotic lineages, have a bipartite structure with gene-specific regulatory elements and a conserved core promoter encompassing the transcription start site. Core promoters in T. vaginalis appear to consist solely of a highly conserved initiator (Inr) element that is both a structural and a functional homologue of its metazoan counterpart. Using DNA affinity chromatography, we have isolated an Inr-binding protein from T. vaginalis. Cloning of the gene encoding the Inr binding protein identified a novel 39-kDa protein (IBP39). We show that IBP39 binds to both double and single Inr motifs found in T. vaginalis genes and that binding requires the conserved nucleotides necessary for Inr function in vivo. Analyses of the cloned IBP39 gene revealed no homology at the protein sequence level with identified proteins in other organisms or the presence of known DNA-binding domains. The relationship between IBP39 and Inr-binding proteins in metazoa presents interesting evolutionary questions.

Indexed as

Transcription Initiation SiteAmino Acid SequenceAnimalsBase SequenceBinding SitesChromatography, AffinityCloning, MolecularDNA-Binding ProteinsDNA, ProtozoanEukaryotic CellsMolecular Sequence DataProtozoan ProteinsTrichomonas vaginalisDNA-Binding ProteinsDNA, ProtozoanIBP39 protein, Trichomonas vaginalisProtozoan Proteins

Identifiers

PMID11604521
PMCPMC99959

What OpenQuestion holds

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Registered trials

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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.