Evidence map›Paper›PMID 34704115›Full record

ReviewCellular and molecular life sciences : CMLS2021

Alpha and beta myosin isoforms and human atrial and ventricular contraction.

Jonathan Walklate, Cecilia Ferrantini, Chloe A Johnson, Chiara Tesi, Corrado Poggesi, Michael A Geeves

Abstract readReview
In one paragraph

Review in Cellular and molecular life sciences : CMLS, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing 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

45 citing papers in PubMed.

  1. Evidence for a role of adverse sarcomere signaling in atrial fibrillation induction.Journal of molecular and cellular cardiology plus · 2026
    Review
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  5. The CabioRxiv : the preprint server for biology · 2026
    Article
  6. Article
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  12. Sex-Specific Expression Patterns ofJournal of cardiovascular development and disease · 2025
    Article
  13. Article
  14. Article
  15. HeterozygousJournal of applied physiology (Bethesda, Md. : 1985) · 2025
    Article
  16. Myosin inhibitors for treatment of hypertrophic cardiomyopathy.The Cochrane database of systematic reviews · 2025
    Article
  17. Article
  18. Article
  19. Article
  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

6 authors.

Jonathan Walklate *Division of Natural Sciences, School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK.ORCID http://orcid.org/0000-0002-2532-8446
Cecilia Ferrantini *Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.ORCID http://orcid.org/0000-0002-3757-1363
Chloe A Johnson *Division of Natural Sciences, School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK.ORCID http://orcid.org/0000-0003-0856-5041
Chiara TesiDepartment of Experimental and Clinical Medicine, University of Florence, Florence, Italy.ORCID http://orcid.org/0000-0002-1111-1473
Corrado PoggesiDepartment of Experimental and Clinical Medicine, University of Florence, Florence, Italy.ORCID http://orcid.org/0000-0003-2624-4778
Michael A GeevesDivision of Natural Sciences, School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK. m.a.geeves@kent.ac.uk.ORCID http://orcid.org/0000-0002-9364-8898

Funding

Horizon 2020 777204 SILICO FCM
6 · The paper itself

Abstract

Human atrial and ventricular contractions have distinct mechanical characteristics including speed of contraction, volume of blood delivered and the range of pressure generated. Notably, the ventricle expresses predominantly β-cardiac myosin while the atrium expresses mostly the α-isoform. In recent years exploration of the properties of pure α- & β-myosin isoforms have been possible in solution, in isolated myocytes and myofibrils. This allows us to consider the extent to which the atrial vs ventricular mechanical characteristics are defined by the myosin isoform expressed, and how the isoform properties are matched to their physiological roles. To do this we Outline the essential feature of atrial and ventricular contraction; Explore the molecular structural and functional characteristics of the two myosin isoforms; Describe the contractile behaviour of myocytes and myofibrils expressing a single myosin isoform; Finally we outline the outstanding problems in defining the differences between the atria and ventricles. This allowed us consider what features of contraction can and cannot be ascribed to the myosin isoforms present in the atria and ventricles.

Indexed as

Amino Acid SequenceAtrial FunctionBlood PressureHeart AtriaHeart VentriclesHumansMyocardial ContractionMyocytes, CardiacMyofibrilsProtein DomainsProtein IsoformsVentricular FunctionVentricular MyosinsProtein IsoformsVentricular MyosinsCardiac proteinsCardiomyocytesHeartMyosin-structure–function

Identifiers

PMID34704115
PMCPMC8629898

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.