Evidence map›Paper›PMID 17376925›Full record

ArticleJournal of virology2007

Infectivity determinants of the hepatitis B virus pre-S domain are confined to the N-terminal 75 amino acid residues.

Matthieu Blanchet, Camille Sureau

Abstract read
In one paragraph

Article in Journal of virology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
–field-weighted citation impact
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

69 citing papers in PubMed.

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  18. Entry Inhibitors of Hepatitis B and D Viruses.Advances in experimental medicine and biology · 2022
    Review
  19. Review
  20. Review

9 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

2 authors.

Matthieu BlanchetLaboratoire de Virologie Moléculaire, Institut National de la Transfusion Sanguine, 6 Rue Alexandre-Cabanel, 75739 Paris, France.
Camille Sureau

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The N-terminal pre-S domain of the large hepatitis B virus (HBV) envelope protein plays a pivotal role at the initial step of the viral entry pathway. In the present study, the entire pre-S domain was mapped for infectivity determinants, following a reverse-genetics approach and using in vitro infection assays with hepatitis delta virus (HDV) or HBV particles. The results demonstrate that lesions created within the N-terminal 75 amino acids of the pre-S region abrogate infectivity, whereas mutations between amino acids 76 and 113, overlapping the matrix domain, had no effect. In contrast to the results of a recent study (L. Stoeckl, A. Funk, A. Kopitzki, B. Brandenburg, S. Oess, H. Will, H. Sirma, and E. Hildt, Proc. Natl. Acad. Sci. 103:6730-6734, 2006), the deletion of a cell membrane translocation motif (TLM) located between amino acids 148 and 161 at the C terminus of pre-S2 did not interfere with the infectivity of the resulting HDV or HBV mutants. Furthermore, a series of large deletions overlapping the pre-S2 domain were compatible with infectivity, although the efficiency of infection was reduced when the deletions extended to the pre-S1 domain. Overall, the results demonstrate that the activity of the pre-S domain at viral entry solely depends on the integrity of its first 75 amino acids and thus excludes any function of the matrix domain or TLM.

Indexed as

Amino Acid MotifsAmino AcidsAmino Acid SequenceCell Line, TumorHepatitis BHepatitis B Surface AntigensHepatitis B virusHepatitis Delta VirusHumansMolecular Sequence DataPeptide FragmentsProtein PrecursorsProtein Structure, TertiaryProtein TransportSequence DeletionViral Envelope ProteinsAmino AcidsHepatitis B Surface AntigensL protein, hepatitis B virusPeptide Fragmentspresurface protein 1, hepatitis B surface antigenpresurface protein 2, hepatitis B surface antigenProtein PrecursorsViral Envelope Proteins

Identifiers

PMID17376925
PMCPMC1900317

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Registered trials

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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.