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Related Experiment Videos

Dishevelled nuclear shuttling.

Jonathan B Weitzman1

  • 1jonathanweitzman@hotmail.com

Journal of Biology
|February 22, 2005
PubMed
Summary

Structure-function analysis in frog embryos identified key sequences in Dishevelled (Dsh) protein. These sequences are critical for Dsh

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Area of Science:

  • Developmental biology
  • Molecular signaling pathways

Background:

  • Dishevelled (Dsh) protein is a key mediator in Wnt signaling.
  • Wnt signaling pathways are crucial for embryonic development.

Purpose of the Study:

  • To identify specific sequences within the Dishevelled (Dsh) protein that regulate its function.
  • To investigate the role of Dsh nuclear localization in Wnt signaling during frog embryogenesis.

Main Methods:

  • Structure-function analysis of Dishevelled (Dsh) protein in Xenopus laevis embryos.
  • Assessment of Dsh protein localization and Wnt signaling activity.

Main Results:

  • Specific regulatory sequences within the Dsh protein were identified.
  • Nuclear localization of Dsh was demonstrated to be critical for Wnt pathway activation.

Conclusions:

  • The identified sequences directly control Dsh nuclear import.
  • Dsh nuclear localization is a critical regulatory step for Wnt signaling in early development.