Evidence map›Paper›PMID 15701754›Full record

ArticleNucleic acids research2005

Splicing of human immunodeficiency virus RNA is position-dependent suggesting sequential removal of introns from the 5' end.

Jens Bohne, Harald Wodrich, Hans-Georg Kräusslich

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
0.9field-weighted citation impact, top 31% 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

30 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
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  4. HibeRNAtion: HIV-1 RNA Metabolism and Viral Latency.Frontiers in cellular and infection microbiology · 2022
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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

3 authors at 1 institution in 1 country.

Jens BohneDepartment of Virology, Universität Heidelberg D-69120 Heidelberg, Germany.
Harald Wodrich
Hans-Georg Kräusslich
Heidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Transcription of the HIV-1 genome yields a single primary transcript, which is alternatively spliced to >30 mRNAs. Productive infection depends on inefficient and regulated splicing and appears to proceed in a tight 5' to 3' order. To analyse whether sequential splicing is mediated by the quality of splice sites or by the position of an intron, we inserted the efficient beta-globin intron (BGI) into the 3' region or 5'UTR of a subgenomic expression vector or an infectious proviral plasmid. RNA analysis revealed splicing of the 3' BGI only if all upstream introns were removed, while splicing of the same intron in the 5'UTR was efficient and independent of further splicing. Furthermore, mutation of the upstream splice signal in the subgenomic vector did not eliminate the inhibition of 3' splicing, although the BGI sequence was the only intron in this case. These results suggest that downstream splicing of HIV-1 RNAs is completely dependent on prior splicing of all upstream intron(s). This hypothesis was supported by the mutation of the major 5' splice site in the HIV-1 genome, which completely abolished all splicing. It appears likely that the tight order of splicing is important for HIV-1 replication, which requires the stable production of intron containing RNAs, while splicing of 3' introns on incompletely spliced RNAs would be likely to render them subject to nonsense-mediated decay.

Indexed as

Alternative SplicingIntrons5' Untranslated RegionsGene ExpressionGene Products, envGenetic VectorsGlobinsHeLa CellsHIV-1HumansMutationPlasmidsProvirusesRNA, Viral5' Untranslated RegionsGene Products, envGlobinsRNA, Viral

Identifiers

PMID15701754
PMCPMC549389
OpenAlexW2008200164

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.