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Related Experiment Videos

Membrane recognition and targeting by lipid-binding domains.

Jonathan P DiNitto1, Thomas C Cronin, David G Lambright

  • 1Program in Molecular Medicine and Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA.

Science'S STKE : Signal Transduction Knowledge Environment
|December 18, 2003
PubMed
Summary

Modular protein domains target intracellular membranes, crucial for cell signaling and trafficking. These domains, like PH and FYVE, use diverse interactions for precise membrane recognition and function.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Modular domains are essential for assembling and localizing protein complexes within eukaryotic cells.
  • These domains mediate critical signaling and trafficking pathways.
  • Understanding membrane targeting is key to deciphering cellular organization.

Purpose of the Study:

  • To review the mechanisms by which modular domains recognize and target intracellular membranes.
  • To highlight the role of diverse domain families in achieving selective membrane localization.
  • To identify common principles in lipid recognition across different membrane-targeting domains.

Main Methods:

  • Literature review of structural and functional studies on membrane-targeting domains.
  • Analysis of interaction modes including specific, nonspecific, and multivalent binding.

Related Experiment Videos

  • Comparative examination of domain families such as PH, FYVE, PX, PHD, and C2 domains.

    • Main Results:

    • Modular domains utilize a combination of interaction types for effective membrane targeting.
    • Structural and functional diversity exists among different domain families.
    • General features of lipid recognition are conserved across various membrane-targeting mechanisms.

    Conclusions:

    • Modular domains are versatile molecular adaptors for intracellular membrane association.
    • The principles of lipid recognition by these domains are broadly applicable to cell signaling and trafficking.
    • Further research into these mechanisms can illuminate fundamental cellular processes.