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Related Experiment Videos

Mouse brain Tau proteins: microheterogeneity and phosphorylation.

H M Araujo1, R P Keller, A Fellous

  • 1Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Brasil.

Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas Medicas E Biologicas
|January 1, 1989
PubMed
Summary

Mouse brain Tau proteins exhibit increased heterogeneity during development, particularly at 15 days old. This developmental stage also shows more diverse Tau phosphorylation patterns compared to newborns and adults.

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Area of Science:

  • Neuroscience
  • Biochemistry
  • Developmental Biology

Background:

  • Tau proteins are crucial for microtubule polymerization, essential for neuronal structure and function.
  • Tau protein heterogeneity can impact microtubule dynamics and neuronal development.

Purpose of the Study:

  • To investigate the developmental changes in mouse brain Tau protein heterogeneity.
  • To analyze the heterogeneity of Tau phosphorylation during different developmental stages.

Main Methods:

  • Two-dimensional gel electrophoresis with non-equilibrium pH gradient was employed to resolve Tau protein isoforms.
  • Comparative analysis of Tau protein profiles across different age groups: newborn, 15-day-old, and adult mice.

Main Results:

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  • Mouse brain Tau proteins demonstrated significantly higher heterogeneity in 15-day-old mice compared to newborns and adults.
  • Increased heterogeneity in Tau phosphorylation patterns was observed at the 15-day developmental stage.

Conclusions:

  • Tau protein heterogeneity and phosphorylation patterns are dynamically regulated during mouse brain development.
  • The 15-day developmental stage represents a critical period for Tau protein maturation and functional diversification.