Evidence map›Paper›PMID 9649446›Full record

ArticleThe EMBO journal1998

Identification of a sequence element immediately upstream of the polypurine tract that is essential for replication of simian immunodeficiency virus.

P O Ilyinskii, R C Desrosiers

Abstract read
In one paragraph

Article in The EMBO journal, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed.

  1. 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

2 authors.

P O IlyinskiiNew England Regional Primate Research Center, Harvard Medical School, One Pine Hill Drive, Southborough, MA 01772-9102, USA.
R C Desrosiers

Funding

ZONA PELLUCIDA PEPTIDES AS IMMUNOCONTRACEPTIVE ANTIGENSP51RR000169 · NCRR · UNIVERSITY OF CALIFORNIA DAVIS · PI HYDE, DALLAS MELVIN · 1985 to 2011
$126.2M
MOLECULAR BASIS FOR STV PATHOGENICITYR37AI025328 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI DESROSIERS, RONALD C · 1996 to 2005
$2.5M
MOLECULAR BASIS FOR SIV PATHOGENICITYR01AI025328 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI DESROSIERS, RONALD C · 1987 to 2010
$2.0M
NCRR NIH HHS RR00169NIAID NIH HHS AI25328
6 · The paper itself

Abstract

A short stretch of T-rich sequences immediately upstream of the polypurine tract (PPT) is highly conserved in the proviral genomes of human and simian immunodeficiency viruses (HIV and SIV). To investigate whether this 'U-box' influences SIVmac239 replication, we analyzed the properties of mutants with changes in this region of the viral genome. All mutants were either retarded in their growth (up to one month delay) or did not replicate detectably in CEMx174 cells. When U-box mutants did replicate detectably, compensatory changes were consistently observed in the viral genome. The most common compensatory change was the acquisition of thymidines immediately upstream of the PPT, but marked expansion in the length of the PPT was also observed. U-box mutants produced transiently by transfection were severely impaired in their ability to produce reverse transcripts in infectivity assays. Analysis of transiently produced mutant virus revealed no defect in RNA packaging or virus assembly. These results identify a new structural element important for an early step in the viral life cycle that includes reverse transcription.

Indexed as

Genome, ViralPurinesVirus ReplicationAnimalsBase SequenceCells, CulturedConserved SequenceCOS CellsHumansMacaca mulattaMutagenesisRNA, ViralSimian Immunodeficiency VirusTranscription, GeneticVirionVirus AssemblyPurinesRNA, Viral

Identifiers

PMID9649446
PMCPMC1170712

What OpenQuestion holds

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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.