Evidence map›Paper›PMID 34302435›Full record

ArticleJournal of cellular and molecular medicine2021

Nanopore sequencing reveals full-length Tropomyosin 1 isoforms and their regulation by RNA-binding proteins during rat heart development.

Jun Cao, Andrew L Routh, Muge N Kuyumcu-Martinez

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

24 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
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  6. The Role of N-ary Relations in Representing Biomedical Complexity.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. RNA binding proteins in cardiovascular development and disease.Current topics in developmental biology · 2024
    Article
  14. Review
  15. Review
  16. Comparisons of the protein expressions between high myopia and moderate myopia on the anterior corneal stroma in human.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Article
  17. 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

3 authors at 1 institution in 1 country.

Jun CaoDepartment of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA.ORCID 0000-0002-4913-6676
Andrew L RouthDepartment of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA.ORCID 0000-0002-2874-5990
Muge N Kuyumcu-MartinezDepartment of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA.ORCID 0000-0003-3171-5861
The University of Texas Medical Branch at Galveston · US

Funding

Role of Rbfox2 in hypoplastic left heart syndromeR01HL135031 · NHLBI · UNIVERSITY OF TEXAS MED BR GALVESTON · PI KUYUMCU-MARTINEZ, MUGE NESLIHAN · 2017 to 2020
$1.5M
American Heart Association-American Stroke Association 20TPA35490206NHLBI NIH HHS 1R01HL135031NHLBI NIH HHS R01 HL135031
6 · The paper itself

Abstract

Alternative splicing (AS) contributes to the diversity of the proteome by producing multiple isoforms from a single gene. Although short-read RNA-sequencing methods have been the gold standard for determining AS patterns of genes, they have a difficulty in defining full-length mRNA isoforms assembled using different exon combinations. Tropomyosin 1 (TPM1) is an actin-binding protein required for cytoskeletal functions in non-muscle cells and for contraction in muscle cells. Tpm1 undergoes AS regulation to generate muscle versus non-muscle TPM1 protein isoforms with distinct physiological functions. It is unclear which full-length Tpm1 isoforms are produced via AS and how they are regulated during heart development. To address these, we utilized nanopore long-read cDNA sequencing without gene-specific PCR amplification. In rat hearts, we identified full-length Tpm1 isoforms composed of distinct exons with specific exon linkages. We showed that Tpm1 undergoes AS transitions during embryonic heart development such that muscle-specific exons are connected generating predominantly muscle-specific Tpm1 isoforms in adult hearts. We found that the RNA-binding protein RBFOX2 controls AS of rat Tpm1 exon 6a, which is important for cooperative actin binding. Furthermore, RBFOX2 regulates Tpm1 AS of exon 6a antagonistically to the RNA-binding protein PTBP1. In sum, we defined full-length Tpm1 isoforms with different exon combinations that are tightly regulated during cardiac development and provided insights into the regulation of Tpm1 AS by RNA-binding proteins. Our results demonstrate that nanopore sequencing is an excellent tool to determine full-length AS variants of muscle-enriched genes.

Indexed as

alternative splicingheart developmentlong-read DNA sequencingRNA-binding proteinstropomyosin

Identifiers

PMID34302435
PMCPMC8419188
OpenAlexW3184226668

What OpenQuestion holds

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LicenceCC BY
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.