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Pulling Membrane Nanotubes from Giant Unilamellar Vesicles
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Published on: December 7, 2017

Tubby proteins: the plot thickens.

Kilpatrick Carroll1, Carlos Gomez, Lawrence Shapiro

  • 1Department of Biochemistry and Molecular Biophysics, Columbia University, 701 West 168th Street, Room 712, New York, New York 10032, USA.

Nature Reviews. Molecular Cell Biology
|January 7, 2004
PubMed
Summary
This summary is machine-generated.

The tubby gene mutation causes obesity and neurosensory deficits in mice. Tubby-like proteins are crucial for nervous system development and function, potentially acting as signaling factors.

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Area of Science:

  • Genetics and Molecular Biology
  • Neuroscience
  • Developmental Biology

Background:

  • The tubby mouse model exhibits late-onset obesity and neurosensory deficits due to a mutation in the Tub gene.
  • Tub shares homology with tubby-like proteins (Tulp1, Tulp2, Tulp3), which are vital for nervous system function and development.
  • The precise biochemical functions of tubby-like proteins remain under investigation.

Purpose of the Study:

  • To elucidate the biochemical functions of tubby-like proteins.
  • To understand the role of tubby-like proteins in nervous system development and signaling pathways.

Main Methods:

  • Comparative genetic analysis of Tub and Tulp genes.
  • Phenotypic analysis of mouse models with gene ablations (Tub, Tulp1, Tulp3).
  • Biochemical assays to investigate protein interactions and signaling pathways.

Main Results:

  • Ablation of Tub, Tulp1, or Tulp3 genes results in distinct disease phenotypes.
  • Evidence suggests tubby-like proteins may function as intracellular signaling factors responsive to heterotrimeric G-proteins.
  • Ongoing research indicates potential involvement in other cellular processes beyond G-protein signaling.

Conclusions:

  • Tubby-like proteins are essential for normal nervous system function and development.
  • These proteins likely play a significant role in intracellular signal transduction.
  • Further research is needed to fully characterize the multifaceted roles of tubby-like proteins.