Evidence map›Paper›PMID 15650205›Full record

ArticleJournal of virology2005

Evaluation of transcriptional efficiency of hepatitis B virus covalently closed circular DNA by reverse transcription-PCR combined with the restriction enzyme digestion method.

Yu-Chi Chou, King-Song Jeng, Mong-Liang Chen, Hsiao-Hui Liu, Tzu-Ling Liu, Ya-Ling Chen, Yu-Chih Liu, Cheng-po Hu, Chungming Chang

Open access · greenAbstract readEvaluation Study
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 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

28 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Hepatitis B Virus X and Regulation of Viral Gene Expression.Cold Spring Harbor perspectives in medicine · 2016
    Review
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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

9 authors at 5 institutions in 2 countries.

Yu-Chi ChouInstitute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan.
King-Song Jeng
Mong-Liang Chen
Hsiao-Hui Liu
Tzu-Ling Liu
Ya-Ling Chen
Yu-Chih Liu
Cheng-po Hu
Chungming Chang
Czech Academy of Sciences, Institute of Microbiology · CZNational Health Research Institutes · TWInstitute of Molecular Biology, Academia Sinica · TWNational Yang Ming Chiao Tung University · TWTaipei City University of Science and Technology · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Virus persistence in chronic hepatitis B patients is due to the sustaining level of covalently closed circular DNA (cccDNA) within the nuclei of infected hepatocytes. In this study, we used a modified 1.3-fold hepatitis B virus (HBV) genome, with a BclI genetic marker embedded in the redundancy region, to examine the transcriptional activity of cccDNA and the effect of the HBx protein on transcriptional regulation. After harvesting total RNA from transfected cells or stable lines, we specifically identified and monitored the transcripts from cccDNA by using reverse transcription-PCR (RT-PCR) combined with the restriction enzyme digestion method. In this approach, we have found that (i) RT-PCR combined with detection of the BclI marker is a highly specific method for distinguishing cccDNA-derived transcripts from the original integrated viral genome, (ii) the transcriptional ability of cccDNA was less efficient than that from the integrated viral genome, and (iii) the transcriptional activity of cccDNA was significantly regulated by the HBx protein, a potential transcription activator. In conclusion, we provided a tool with which to elucidate the transcriptional regulation of cccDNA and clarified the transcriptional regulation mechanism of HBx on cccDNA. The results obtained may be helpful in the development of a clinical intervention for patients with chronic HBV infections.

Indexed as

Gene Expression Regulation, ViralTranscription, GeneticCell Line, TumorDeoxyribonucleases, Type II Site-SpecificDNA, CircularDNA, ViralHepatitis B virusHumansRestriction MappingReverse Transcriptase Polymerase Chain ReactionTrans-ActivatorsViral Regulatory and Accessory ProteinsDeoxyribonucleases, Type II Site-SpecificDNA, CircularDNA, Viralendodeoxyribonuclease BclIhepatitis B virus X proteinTrans-ActivatorsViral Regulatory and Accessory Proteins

Identifiers

PMID15650205
PMCPMC544084
OpenAlexW2058085811

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.