Evidence map›Paper›PMID 9343212›Full record

ArticleJournal of virology1997

A naturally arising mutation of a potential silencer of exon splicing in human immunodeficiency virus type 1 induces dominant aberrant splicing and arrests virus production.

M P Wentz, B E Moore, M W Cloyd, S M Berget, L A Donehower

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

34 citing papers in PubMed, 56 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Focus on Translation Initiation of the HIV-1 mRNAs.International journal of molecular sciences · 2018
    Review
  6. Article
  7. Unusual Fusion Proteins of HIV-1.Frontiers in microbiology · 2016
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Utilization of host SR protein kinases and RNA-splicing machinery during viral replication.Proceedings of the National Academy of Sciences of the United States of America · 2006
    Article
  19. Review
  20. 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 2 institutions in 2 countries.

M P WentzDivision of Molecular Virology, Baylor College of Medicine, Houston, Texas 77030, USA.
B E Moore
M W Cloyd
S M Berget
L A Donehower
Baylor College of Medicine · USBipar · FR

Funding

HOST LYMPHOCYTE RESISTANCE TO HIV1R01AI038530 · NIAID · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI CLOYD, MILES W. · 1995 to 2001
$521k
ROLE OF VIRAL GENES IN HIV-1 REPLICATIONR01AI028741 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI DONEHOWER, LAWRENCE A. · 1990 to 1992
–
TRAINING IN BASIC RESEARCH ON HIV AND AIDST32AI007483 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI BUTEL, JANET S · 1994 to 1998
–
NIAID NIH HHS AI07483NIAID NIH HHS AI28741NIAID NIH HHS AI38530
6 · The paper itself

Abstract

We have isolated a naturally arising human immunodeficiency type 1 (HIV-1) mutant containing a point mutation within the env gene. The point mutation resulted in complete loss of balanced splicing, with dominant production of aberrant mRNAs. The aberrant RNAs arose via activation of normally cryptic splice sites flanking the mutation within the env terminal exon to create exon 6D, which was subsequently incorporated in aberrant env, tat, rev, and nef mRNAs. Aberrant multiply spliced messages contributed to reduced virus replication as a result of a reduction in wild-type Rev protein. The point mutation within exon 6D activated exon 6D inclusion when the exon and its flanking splice sites were transferred to a heterologous minigene. Introduction of the point mutation into an otherwise wild-type HIV-1 proviral clone resulted in virus that was severely inhibited for replication in T cells and displayed elevated usage of exon 6D. Exon 6D contains a bipartite element similar to that seen in tat exon 3 of HIV-1, consisting of a potential exon splicing silencer (ESS) juxtaposed to a purine-rich sequence similar to known exon splicing enhancers. In the absence of a flanking 5' splice site, the point mutation within the exon 6D ESS-like element strongly activated env splicing, suggesting that the putative ESS plays a natural role in limiting the level of env splicing. We propose, therefore, that exon silencers may be a common element in the HIV-1 genome used to create balanced splicing of multiple products from a single precursor RNA.

Indexed as

Alternative SplicingBase SequenceCells, CulturedDNA, ViralExonsGene Expression Regulation, ViralGene Products, revGene Products, tatHIV-1HumansMutationrev Gene Products, Human Immunodeficiency VirusRNA, Viraltat Gene Products, Human Immunodeficiency VirusT-LymphocytesVirus ReplicationDNA, ViralGene Products, revGene Products, tatrev Gene Products, Human Immunodeficiency VirusRNA, Viraltat Gene Products, Human Immunodeficiency Virus

Identifiers

PMID9343212
PMCPMC192318
OpenAlexW2101131361

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.