Evidence map›Paper›PMID 8464739›Full record

ArticleNucleic acids research1993

Tissue-specific and developmentally regulated alternative splicing of a visceral isoform of smooth muscle myosin heavy chain.

P Babij

Open access · greenAbstract read
In one paragraph

Article in Nucleic acids research, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 83 citations in OpenAlex.

  1. MBNL loss of function in smooth muscle as a model for myotonic dystrophy associated gastrointestinal dysmotility.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Myosin, transgelin, and myosin light chain kinase: expression and function in asthma.American journal of respiratory and critical care medicine · 2009
    Article
  7. Tuning smooth muscle contraction by molecular motors.Journal of molecular medicine (Berlin, Germany) · 2003
    Review
  8. Article
  9. Variable surface loops and myosin activity: accessories to a motor.Journal of muscle research and cell motility · 2000
    Review
  10. Article
  11. A myosin family reunion.Journal of muscle research and cell motility · 1996
    Review
  12. Article
  13. Scallop striated and smooth muscle myosin heavy-chain isoforms are produced by alternative RNA splicing from a single gene.Proceedings of the National Academy of Sciences of the United States of America · 1994
    Article
  14. Myosin isoforms in smooth muscle: how may they affect function and structure?Journal of muscle research and cell motility · 1993
    Review
  15. Article
  16. Article
  17. 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

1 author at 1 institution in 1 country.

P BabijDepartment of Physiology, University College London, UK.
University College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Previous work demonstrated that the rabbit smooth muscle myosin heavy chain gene showed sequence divergence at the 25kDa/50kDa junction of the S1 subfragment when compared to chicken gizzard and chicken epithelial nonmuscle myosin. RNase protection analysis with a probe spanning this region detected two partially protected fragments which were not present in RNA from vascular tissue and only found in RNA from visceral tissue. The polymerase chain reaction was used to amplify a 162bp product from primers spanning the putative region of divergence and DNA sequence analysis revealed a seven amino acid insertion not previously detected in other characterised cDNA clones. RNase protection analysis using the PCR product as probe showed that the inserted sequence was expressed exclusively in RNA from visceral tissue. Similar RNA analysis showed that the visceral isoform was not expressed in 20 day fetal rabbit smooth muscle tissues. These results indicated that the new visceral isoform was expressed in a tissue-specific and developmentally regulated manner. Genomic DNA sequencing and mapping of the exon-intron boundaries showed that the visceral isoform was the product of cassette-type alternative splicing. The inclusion of a visceral-specific sequence near the Mg-ATPase domain and at the 25kDa/50kDa junction suggests that the visceral isoform may be important for myosin function in smooth muscle cells.

Indexed as

Alternative SplicingGene Expression RegulationAge FactorsAmino Acid SequenceAnimalsBase SequenceDNAIntestinal MucosaIntestinesMolecular Sequence DataMuscle, SmoothMyosinsOligodeoxyribonucleotidesPolymerase Chain ReactionRabbitsRNA, MessengerDNAMyosinsOligodeoxyribonucleotidesRNA, Messenger

Identifiers

PMID8464739
PMCPMC309334
OpenAlexW1991598499

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.