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Related Experiment Videos

Classical cadherins.

R Kemler1

  • 1Max-Planck-Institut für Immunbiologie, Freiburg, Germany.

Seminars in Cell Biology
|June 1, 1992
PubMed
Summary
This summary is machine-generated.

Cadherins are cell adhesion molecules crucial for development and organ function. Their cytoplasmic domains interact with catenins, potentially regulating cell adhesion by linking to actin microfilaments.

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Area of Science:

  • Molecular Biology
  • Cell Biology
  • Biochemistry

Background:

  • Cadherins are a gene family of calcium-dependent cell adhesion molecules (CAMs).
  • They mediate cell-cell adhesion through homotypic or heterotypic interactions.
  • Cadherins are transmembrane glycoproteins with conserved structural and topological features.

Purpose of the Study:

  • To characterize the cadherin gene superfamily.
  • To identify functionally important domains within cadherins.
  • To investigate the role of associated proteins in cadherin function.

Main Methods:

  • Molecular cloning and sequence comparison were used to characterize cadherins.
  • Protein sequence analysis identified conserved domains.
  • The association of cadherins with cytoplasmic proteins (catenins) was investigated.

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Main Results:

  • A homologous group of 'classical' cadherins and related members were identified.
  • Conserved functional domains were identified through protein sequence comparison.
  • Cadherins associate with catenin alpha, beta, and gamma proteins.

Conclusions:

  • Cadherin-catenin complex formation is crucial for regulating adhesive function.
  • This complex likely connects cadherins to the actin cytoskeleton.
  • Catenins play a significant role in mediating cadherin-based cell adhesion.