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Quantifying Subcellular Ubiquitin-proteasome Activity in the Rodent Brain
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Arc ubiquitination in synaptic plasticity.

Angela M Mabb1, Michael D Ehlers2

  • 1Neuroscience Institute, Georgia State University, 100 Piedmont Ave., Atlanta, GA 30302, United States.

Seminars in Cell & Developmental Biology
|September 12, 2017
PubMed
Summary
This summary is machine-generated.

The activity-regulated protein Arc is crucial for memory and neural activation. This review highlights how Arc protein degradation impacts synaptic plasticity and AMPA receptor trafficking.

Keywords:
Arc/Arg3.1NeuronPlasticityProteasomeUbiquitin

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Cell Biology

Background:

  • The activity-regulated cytoskeleton-associated protein (Arc) is an immediate early gene product vital for memory consolidation and neural activation.
  • Arc mediates synaptic plasticity through the trafficking of AMPA receptors, with its expression rapidly changing with neural activity.

Purpose of the Study:

  • To review recent findings on the mechanisms controlling Arc protein degradation.
  • To discuss the role of Arc turnover in AMPA receptor trafficking and synaptic plasticity.

Main Methods:

  • Literature review of studies on Arc protein stability and turnover.
  • Analysis of research on mechanisms governing Arc degradation.
  • Examination of Arc's contribution to AMPA receptor trafficking.

Main Results:

  • Arc protein levels fluctuate rapidly in response to neural activity.
  • Mechanisms controlling Arc degradation are less understood than its transcription and translation.
  • Arc degradation plays a significant role in regulating synaptic plasticity.

Conclusions:

  • Understanding Arc degradation is critical for comprehending memory consolidation and neural plasticity.
  • Targeting Arc turnover may offer new therapeutic avenues for cognitive disorders.
  • Further research into Arc protein stability is warranted to fully elucidate its function.