Evidence map›Paper›PMID 9499094›Full record

ArticleJournal of virology1998

A novel point mutation at position 156 of reverse transcriptase from feline immunodeficiency virus confers resistance to the combination of (-)-beta-2',3'-dideoxy-3'-thiacytidine and 3'-azido-3'-deoxythymidine.

R A Smith, K M Remington, B D Preston, R F Schinazi, T W North

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 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

11 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Lamivudine (3TC) resistance in HIV-1 reverse transcriptase involves steric hindrance with beta-branched amino acids.Proceedings of the National Academy of Sciences of the United States of America · 1999
    Article
  11. 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

5 authors at 3 institutions in 1 country.

R A SmithDivision of Biological Sciences, the University of Montana, Missoula 59812, USA.
K M Remington
B D Preston
R F Schinazi
T W North
University of Montana · USAtlanta VA Medical Center · USUniversity of Utah · US

Funding

LENTIVIRUS MODEL FOR AIDS CHEMOTHERAPYR01AI028189 · NIAID · UNIVERSITY OF MONTANA · PI NORTH, THOMAS W · 1988 to 1998
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LENTIVIRUS MUTATION AND REVERSE TRANSCRIPTASE FIDELITYR01AI038755 · NIAID · UNIVERSITY OF UTAH · PI PRESTON, BRADLEY D · 1996 to 1998
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FELINE LENTIVIRUS MODEL FOR DRUG RESISTANCER55AI028189 · NIAID · UNIVERSITY OF MONTANA · PI BILDERBACK, DAVID E · 1991 to 1991
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NIAID NIH HHS AI28189NIAID NIH HHS AI38755
6 · The paper itself

Abstract

Mutants of feline immunodeficiency virus (FIV) resistant to (-)-beta-2',3'-dideoxy-3'-thiacytidine (3TC) were selected by culturing virus in the presence of increasing stepwise concentrations of 3TC. Two plaque-purified variants were isolated from the original mutant population, and both of these mutants were resistant to 3TC. Surprisingly, these mutants were also phenotypically resistant to 3'-azido-3'-deoxythymidine (AZT) and to the combination of 3TC and AZT. Purified reverse transcriptase (RT) from one of these plaque-purified mutants was resistant to the 5'-triphosphates of 3TC and AZT. DNA sequence analysis of the RT-encoding region of the pol gene amplified from the plaque-purified mutants revealed a Pro-to-Ser mutation at position 156 of RT. A site-directed mutant of FIV engineered to contain this Pro-156-Ser mutation was resistant to 3TC, AZT, and the combination of 3TC and AZT, confirming the role of the Pro-156-Ser mutation in the resistance of FIV to these two nucleoside analogs. This represents the first report of a lentiviral mutant resistant to the combination of AZT and 3TC due to a single, unique point mutation.

Indexed as

Point MutationAmino Acid SequenceAnimalsBinding SitesCatsCell LineDrug InteractionsDrug Resistance, MicrobialImmunodeficiency Virus, FelineLamivudineMolecular Sequence DataMutagenesis, Site-DirectedProlineReverse Transcriptase InhibitorsRNA-Directed DNA PolymeraseSequence Analysis, DNALamivudineProlineReverse Transcriptase InhibitorsRNA-Directed DNA PolymeraseSerineZidovudine

Identifiers

PMID9499094
PMCPMC109533
OpenAlexW2159019004

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.