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Updated: Jun 23, 2026

Dissection of the Transversus Abdominis Muscle for Whole-mount Neuromuscular Junction Analysis
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Published on: January 11, 2014

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TRIM32 and Malin in Neurological and Neuromuscular Rare Diseases

Lorena Kumarasinghe1, Lu Xiong2, Maria Adelaida Garcia-Gimeno3

  • 1Instituto de Biomedicina de Valencia, CSIC, Jaime Roig 11, 46010 Valencia, Spain.

Cells
|April 30, 2021
PubMed

Insights

Tripartite motif (TRIM) proteins TRIM32 and malin are E3 ubiquitin ligases linked to rare genetic diseases. This review explores their functions and shared disease pathways.

Area of Science:

  • Biochemistry
  • Genetics
  • Molecular Biology

Background:

  • Tripartite motif (TRIM) proteins are a large family of RING E3 ubiquitin ligases.
  • Mutations in TRIM32 and malin are linked to Limb-Girdle Muscular Dystrophy R8 and Lafora disease, respectively.
  • TRIM32 and malin are evolutionarily related and share structural features, including NHL repeats.

Purpose of the Study:

  • To review the functions of TRIM32 and malin.
  • To discuss their intrinsic pathophysiological pathways.
  • To explore potential common disease mechanisms.

Main Methods:

  • Literature review of TRIM protein function.
  • Analysis of genetic disease associations.
  • Comparative analysis of TRIM32 and malin structure and function.

Main Results:

  • TRIM32 and malin are E3 ubiquitin ligases with distinct but related functions.
  • Both proteins are implicated in rare genetic neuromuscular and neurodegenerative disorders.
  • Shared structural domains suggest overlapping molecular mechanisms.

Conclusions:

  • Understanding the functions of TRIM32 and malin is crucial for rare disease research.
  • Investigating their common pathophysiological pathways may reveal novel therapeutic targets.
  • TRIM proteins represent an important class of disease-associated E3 ubiquitin ligases.
Keywords:
E3-ligaseLafora diseaseLimb-Girdle Muscular DystrophyTRIM proteinsTrim32malinrare diseasesubiquitination

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