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Related Concept Videos

Phosphorylation01:02

Phosphorylation

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The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
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Regulatory mechanisms in postsynaptic phosphorylation networks.

Marcelo P Coba1

  • 1Zilkha Neurogenetic Institute, Department of Psychiatry and Behavioral Sciences, University of Southern California, Los Angeles, CA, United States.

Current Opinion in Structural Biology
|February 27, 2019
PubMed
Summary
This summary is machine-generated.

Protein phosphorylation in the postsynaptic density (PSD) regulates synaptic functions. This study examines the PSD phosphoproteome, including kinases and phosphatases, and their role in synaptic plasticity like long-term potentiation (LTP).

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Biochemistry

Background:

  • Protein phosphorylation is crucial for regulating postsynaptic signaling and synaptic functions.
  • Understanding the postsynaptic density (PSD) phosphoproteome is key to deciphering synaptic regulation.
  • Large-scale analysis of protein phosphorylation in PSD components is emerging, but systematic data and functional significance are nascent.

Purpose of the Study:

  • To describe the composition of the PSD phosphoproteome.
  • To identify kinase, phosphatase, and protein domain modules regulating phosphorylation signaling.
  • To discuss the impact of synaptic plasticity, such as long-term potentiation (LTP), on mammalian kinomes and PSD signaling organization.

Main Methods:

  • Leveraging advances in mass spectrometry for large-scale analysis of protein phosphorylation.
  • Focusing on the systematic collection and analysis of PSD phosphoproteome datasets.
  • Investigating signaling organization within the PSD phosphoproteome.

Main Results:

  • Detailed characterization of the PSD phosphoproteome's composition.
  • Identification of key kinase and phosphatase modules involved in phosphorylation signaling.
  • Insights into how synaptic plasticity mechanisms influence mammalian kinomes and PSD signaling.

Conclusions:

  • The PSD phosphoproteome is a complex network regulated by specific kinase and phosphatase modules.
  • Synaptic plasticity, including LTP, significantly impacts the mammalian kinome within the PSD.
  • General rules governing signaling organization in the PSD phosphoproteome are being elucidated.