Evidence map›Paper›PMID 15767453›Full record

ArticleJournal of virology2005

Dual role of the lymphocytic choriomeningitis virus intergenic region in transcription termination and virus propagation.

Daniel D Pinschewer, Mar Perez, Juan Carlos de la Torre

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

68 citing papers in PubMed, 105 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Lassa Virus Genetics.Current topics in microbiology and immunology · 2023
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Review

8 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Daniel D PinschewerDepartment of Neuropharmacology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Mar Perez
Juan Carlos de la Torre
Scripps Research Institute · US

Funding

REVERSE GENETICS OF ARENAVIRUSESR01AI047140 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI DE LA TORRE, JUAN C. · 2001 to 2011
$3.0M
Reverse Genetics of ArenavirusesR56AI047140 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI DE LA TORRE, JUAN C. · 2007 to 2007
$398k
NIAID NIH HHS AI47140NIAID NIH HHS R01 AI047140NIAID NIH HHS R56 AI047140
6 · The paper itself

Abstract

Each genome segment of the prototypic arenavirus lymphocytic choriomeningitis virus (LCMV), encodes two genes in ambisense orientation, separated by an intergenic region (IGR). The 3' ends of subgenomic viral mRNAs have been mapped to a stem-loop structure within the IGR, suggesting structure-dependent transcription termination. We have studied the role of the LCMV IGR by using a minigenome (MG) rescue system based on RNA analogues of the short genome segment. An ambisense MG coding for chloramphenicol acetyltransferase (CAT) and green fluorescent protein reporter genes instead of the nucleoprotein and glycoprotein open reading frames, respectively, served as a template for synthesis of full-length anti-MG (aMG) replicate and subgenomic size mRNA for reporter gene expression. An analogous MG without IGR was amplified by the virus polymerase with equal efficiency, but subgenomic mRNA was undetectable. Reporter gene expression from IGR-deficient aMG CAT-sense RNA of genomic length was approximately 5-fold less efficient than that from subgenomic CAT mRNA derived from an IGR-containing MG, but at least 100-fold more efficient than that from a T7 RNA polymerase transcript with the same sequence. Therefore, in the absence of IGR-mediated transcription termination, a fraction of full-length aMG RNA appears to behave as bona fide mRNA. Unexpectedly, MGs without IGR were dramatically impaired in their ability to passage reporter gene activity via infectious virus-like particles. These data suggest that the LCMV IGR serves individual functions in transcription termination for enhanced gene expression and in the virus assembly and/or budding, which are required for the efficient propagation of LCMV infectivity.

Indexed as

Transcription, GeneticVirus ReplicationChloramphenicol O-AcetyltransferaseDNA, IntergenicGene Expression Regulation, ViralGenes, ReporterGreen Fluorescent ProteinsLymphocytic choriomeningitis virusSequence DeletionChloramphenicol O-AcetyltransferaseDNA, IntergenicGreen Fluorescent Proteins

Identifiers

PMID15767453
PMCPMC1061552
OpenAlexW2095967124

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.