Evidence map›Paper›PMID 15470252›Full record

ArticleEukaryotic cell2004

RNA polymerase II localizes in Tetrahymena thermophila meiotic micronuclei when micronuclear transcription associated with genome rearrangement occurs.

Kazufumi Mochizuki, Martin A Gorovsky

Open access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
0.4field-weighted citation impact, top 41% 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

33 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Programmed genome rearrangements in ciliates.Cellular and molecular life sciences : CMLS · 2020
    Review
  11. Article
  12. Review
  13. RNAi-dependentGenes & development · 2019
    Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

2 authors at 1 institution in 1 country.

Kazufumi MochizukiDepartment of Biology, University of Rochester, 425 Hutchison Hall, Rochester, NY 14627, USA.
Martin A Gorovsky
University of Rochester · US

Funding

REPEATED GENES: ORGANIZATION, EVOLUTION, AND FUNCTIONR01GM021793 · NIGMS · UNIVERSITY OF ROCHESTER · PI GOROVSKY, MARTIN A · 1985 to 2008
$3.1M
NIGMS NIH HHS GM21793NIGMS NIH HHS R01 GM021793
6 · The paper itself

Abstract

The germ line micronucleus in Tetrahymena thermophila is transcriptionally silent in vegetatively growing cells. However, micronuclear transcription has been observed in the early ("crescent") stages of the sexual process, conjugation. This transcription is proposed to play a central role in identifying sites for subsequent genome rearrangements that accompany development of the somatic macronucleus from the micronucleus. RPB3 (cnjC), a gene encoding a protein homologous to the third largest subunit of RNA polymerase II (RNAP II), was previously reported to be expressed specifically during conjugation, suggesting a role in micronucleus-specific transcription. Rpb3p localized in the micronucleus only during the meiotic prophase, when micronuclear transcription occurs, and its intranuclear distribution is strikingly similar to that for previously described sites of micronuclear RNA synthesis. By contrast, Rpc5p, the homologous subunit shared by RNAPs I and III, was not detectable in the micronucleus at any stage of the life cycle. However, Rpb3p is not specific to the transcribing micronucleus. Like Rpc5p, it also localizes to macronuclei in all stages of the life cycle. Rpb3p is encoded by a unique, essential gene in Tetrahymena. Thus, RNAP II is associated with both somatic transcription and crescent transcription and probably has an important role in genome rearrangement.

Indexed as

AnimalsBase SequenceDNA, ProtozoanGene RearrangementGenes, ProtozoanMeiosisMicronucleus, GermlinePhylogenyRNA Polymerase IITetrahymena thermophilaTranscription, GeneticDNA, ProtozoanRNA Polymerase II

Identifiers

PMID15470252
PMCPMC522604
OpenAlexW2110284148

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.