ArticleThe Journal of physiology2024
Postsynaptic β1 spectrin maintains Na
Article in The Journal of physiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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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.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- The perijunctional zone is a molecularly distinct muscle subdomain altered in Duchenne muscular dystrophy.Nature communications · 2026Article
- The Neuromuscular Junction: A Shared Vulnerability in Aging and Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Review
- Muscle spectrin.The Journal of physiology · 2025Article
- Natural history of SPTBN4-related neurodevelopmental disorder with hypotonia, neuropathy, and deafness.Orphanet journal of rare diseases · 2025Article
- Age-dependent regulation of axoglial interactions and behavior by oligodendrocyte AnkyrinG.Nature communications · 2024Article
- Age-dependent regulation of axoglial interactions and behavior by oligodendrocyte AnkyrinG.bioRxiv : the preprint server for biology · 2024Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Spectrins function together with actin as obligatory subunits of the submembranous cytoskeleton. Spectrins maintain cell shape, resist mechanical forces, and stabilize ion channel and transporter protein complexes through binding to scaffolding proteins. Recently, pathogenic variants of SPTBN4 (β4 spectrin) were reported to cause both neuropathy and myopathy. Although the role of β4 spectrin in neurons is mostly understood, its function in skeletal muscle, another excitable tissue subject to large forces, is unknown. Here, using a muscle specific β4 spectrin conditional knockout mouse, we show that β4 spectrin does not contribute to muscle function. In addition, we show β4 spectrin is not present in muscle, indicating the previously reported myopathy associated with pathogenic SPTBN4 variants is neurogenic in origin. More broadly, we show that α2, β1 and β2 spectrins are found in skeletal muscle, with α2 and β1 spectrins being enriched at the postsynaptic neuromuscular junction (NMJ). Surprisingly, using muscle specific conditional knockout mice, we show that loss of α2 and β2 spectrins had no effect on muscle health, function or the enrichment of β1 spectrin at the NMJ. Muscle specific deletion of β1 spectrin also had no effect on muscle health, but, with increasing age, resulted in the loss of clustered NMJ Na
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Registered trials
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.