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Structural and functional aspects of filamins.

A van der Flier1, A Sonnenberg

  • 1Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.

Biochimica Et Biophysica Acta
|May 5, 2001
PubMed
Summary

Filamins are cytoskeletal proteins essential for cell structure and signaling. Dysfunctional filamin-A causes ventricular heterotopia, suggesting other filamin gene mutations may also lead to human diseases.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Filamins are high molecular mass cytoskeletal proteins crucial for organizing actin networks.
  • They anchor transmembrane proteins to the actin cytoskeleton and scaffold cytoplasmic signaling proteins.
  • Recent studies reveal complexity within the filamin family, with implications for human health.

Purpose of the Study:

  • To review the structure, splice variants, binding partners, and biological functions of filamins.
  • To highlight the connection between filamin dysfunction and human diseases.
  • To explore the emerging complexity of the filamin protein family.

Main Methods:

  • Literature review of filamin structure and function.
  • Analysis of studies on human filamin isogenes and orthologues.
  • Examination of genetic disorders linked to filamin mutations.

Main Results:

  • Filamins play a vital role in maintaining cell structure and facilitating intracellular signaling pathways.
  • Mutations in filamin-A are associated with the genetic disorder ventricular heterotopia.
  • The filamin family exhibits significant complexity, with potential links between other isogenes and human diseases.

Conclusions:

  • Filamins are critical for cytoskeletal organization and signal transduction.
  • Filamin abnormalities represent a potential source of human genetic disorders.
  • Further research into filamin family complexity is warranted to understand their full biological and pathological significance.

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