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Related Experiment Videos

Neurofilament phosphorylation

H C Pant1, Veeranna

  • 1Division of Intramural Research, National Institute of Neurological Disorders and Stroke, National Institutes of Health,

Biochemistry and Cell Biology = Biochimie Et Biologie Cellulaire
|September 1, 1995
PubMed
Summary
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Neurofilament proteins (NFPs) undergo phosphorylation, a key process influencing neuron function throughout life. This review details how NFP phosphorylation affects filament properties and neuronal health.

Area of Science:

  • Neuroscience
  • Cell Biology
  • Biochemistry

Background:

  • Neurofilament proteins (NFPs) are crucial structural components of the axonal cytoskeleton in the adult nervous system.
  • NFP phosphorylation is a dynamic process that regulates filament properties and neuronal function across different life stages, from development to aging and disease.

Purpose of the Study:

  • To review the properties of NFPs in adult nervous tissue, focusing on phosphorylation.
  • To describe in vivo phosphorylation sites in high molecular weight NFP (NF-H) and associated kinases.
  • To present a model for the role of NFP phosphorylation in filament caliber, plasticity, and stability.

Main Methods:

  • Literature review of studies on NFP phosphorylation in adult nervous tissue.
  • Identification of in vivo phosphorylation sites on NF-H.

Related Experiment Videos

  • Characterization of neural-specific kinases involved in NFP phosphorylation.

    • Main Results:

    • NFPs are highly phosphorylated in adult axons, with phosphorylation sites identified on NF-H.
    • Specific neural-specific kinases are involved in phosphorylating distinct sites on NFPs.
    • A model is proposed linking NFP phosphorylation to filament caliber, plasticity, and stability.

    Conclusions:

    • NFP phosphorylation is a critical regulatory mechanism for axonal structure and function.
    • Understanding NFP phosphorylation dynamics is essential for comprehending neuronal health and pathology.
    • The proposed model provides a framework for future research into neurofilament regulation.