Evidence map›Paper›PMID 20960046›Full record

ArticleVirus genes2011

Comparison of the replication properties of murine and human calicivirus RNA-dependent RNA polymerases.

Rowena A Bull, Jennifer Hyde, Jason M Mackenzie, Grant S Hansman, Tomoichiro Oka, Naokazu Takeda, Peter A White

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Virus genes, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

19 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Norovirus antivirals: Where are we now?Medicinal research reviews · 2019
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Comprehensive review of human sapoviruses.Clinical microbiology reviews · 2015
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

7 authors at 3 institutions in 2 countries.

Rowena A BullSchool of Biotechnology and Biomolecular Sciences, Faculty of Science, The University of New South Wales, Sydney, NSW 2052, Australia. r.bull@unsw.edu.au
Jennifer Hyde
Jason M Mackenzie
Grant S Hansman
Tomoichiro Oka
Naokazu Takeda
Peter A White
National Institute of Infectious Diseases · JPLa Trobe University · AUUNSW Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The human caliciviruses (CV), norovirus (NoV) and sapovirus (SaV), are major causes of outbreak gastroenteritis worldwide. To date, the investigation of human NoV and SaV replication cycles has been impeded as neither is culturable. Consequently, the recently discovered murine NoV (MNV) has been adopted as a surrogate replication model for the human CVs. In this study, we sought to compare the biochemical properties of the MNV RNA-dependent RNA polymerase (RdRp) with related human NoV and SaV-RdRps to address the suitability of MNV as a model for the human CVs. Three human NoV-RdRps (GII.b, GII.4 and GII.7), an MNV-RdRp and two human SaV-RdRps (GI and GII) were overexpressed in Escherichia coli, purified and their enzymatic activity and fidelity compared. Despite ~70% amino acid variation between the RdRp from the two different CV genera, the majority of the physiological characteristics of the RdRps were similar. All RdRps exhibited co-operative dimerisation and had optimal activity at 25°C, a pH range between 7 and 8, required 2-5 mM MnCl(2) and were inhibited with increasing NaCl concentrations. We observed RdRp activity at temperatures as low as 5°C and as high as 65°C. Using an in vitro fidelity assay, similar mutation rates were observed for the separate RdRps (1 × 10(-4)-1 × 10(-5)). This is the first report to compare the physiological, biochemical and mutational properties of the MNV-RdRp to those of the human CV-RdRps and it suggests that MNV may be directly applicable to the study of human NoV.

Indexed as

Virus ReplicationAmino Acid SequenceAnimalsCaliciviridaeHumansMiceMolecular Sequence DataRNA-Dependent RNA PolymeraseRNA, ViralSequence Analysis, ProteinViral ProteinsRNA-Dependent RNA PolymeraseRNA, ViralViral Proteins

Identifiers

PMID20960046
OpenAlexW1985498033

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.