Evidence map›Paper›PMID 9525600›Full record

ArticleJournal of virology1998

Genotype-specific complementation of hepatitis delta virus RNA replication by hepatitis delta antigen.

J L Casey, J L Gerin

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1998. 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
2.4field-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, 55 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
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  7. Article
  8. Control of ADAR1 editing of hepatitis delta virus RNAs.Current topics in microbiology and immunology · 2012
    Review
  9. Article
  10. Article
  11. Article
  12. Eighth major clade for hepatitis delta virus.Emerging infectious diseases · 2006
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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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

2 authors at 2 institutions in 1 country.

J L CaseyDivision of Molecular Virology and Immunology, Georgetown University Medical Center, Rockville, Maryland 20852, USA. caseyj@medlib.georgetown.edu
J L Gerin
Georgetown University · USGeorgetown University Medical Center · US

Funding

OPERATION OF A MOLECULAR VIROLOGY/IMMUNOLOGY LABORATORYN01AI045179 · NIAID · GEORGETOWN UNIVERSITY · PI GERIN, JOHN L. · 1994 to 1999
–
NIAID NIH HHS N01-AI-45179
6 · The paper itself

Abstract

Characterizations of genetic variations among hepatitis delta virus (HDV) isolates have focused principally on phylogenetic analysis of sequences, which vary by 30 to 40% among three genotypes and about 10 to 15% among isolates of the same genotype. The significance of the sequence differences has been unclear but could be responsible for pathogenic variations associated with the different genotypes. Studies of the mechanisms of HDV replication have been limited to cDNA clones from HDV genotype I, which is the most common. To perform a comparative analysis of HDV RNA replication in genotypes I and III, we have obtained a full-length cDNA clone from an HDV genotype III isolate. In transfected Huh-7 cells, the functional roles of the two forms of the viral protein, hepatitis delta antigen (HDAg), in HDV RNA replication are similar for both genotypes I and III; the short form is required for RNA replication, while the long form inhibits replication. For both genotypes, HDAg was able to support replication of RNAs of the same genotype that were mutated so as to be defective for HDAg production. Surprisingly, however, neither genotype I nor genotype III HDAg was able to support replication of such mutated RNAs of the other genotype. The inability of genotype III HDAg to support replication of genotype I RNA could have been due to a weak interaction between the RNA and HDAg. The clear genotype-specific activity of HDAg in supporting HDV RNA replication confirms the original categorization of HDV sequences in three genotypes and further suggests that these should be referred to as types (i.e., HDV-I and HDV-III) rather than genotypes.

Indexed as

Virus ReplicationCloning, MolecularDNA, ComplementaryDNA, ViralGenetic Complementation TestGenotypeHepatitis AntigensHepatitis delta AntigensHepatitis Delta VirusHumansRecombinant Fusion ProteinsRNA-Binding ProteinsRNA, ViralTumor Cells, CulturedDNA, ComplementaryDNA, ViralHepatitis AntigensHepatitis delta Antigenshepatitis delta virus large antigenRecombinant Fusion ProteinsRNA-Binding ProteinsRNA, Viral

Identifiers

PMID9525600
PMCPMC109725
OpenAlexW2164901035

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.