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Related Concept Videos

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Lipids as Anchors

In the plasma membrane, the lipids forming the bilayer can also act as an anchor to tether proteins to the membrane. The three main types of lipid anchors found in eukaryotes are – prenyl groups, fatty acyl groups, and glycosylphosphatidylinositol or GPI groups. Prenyl and fatty acyl groups act as anchors on the cytosolic surface of the membrane, whereas GPI anchors proteins on the extracellular side.
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Related Experiment Video

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Detection of Protein Palmitoylation in Cultured Hippocampal Neurons by Immunoprecipitation and Acyl-Biotin Exchange (ABE)
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Detection of Protein Palmitoylation in Cultured Hippocampal Neurons by Immunoprecipitation and Acyl-Biotin Exchange (ABE)

Published on: February 18, 2013

Protein palmitoylation and subcellular trafficking.

Clara Aicart-Ramos1, Ruth Ana Valero, Ignacio Rodriguez-Crespo

  • 1Departamento de Bioquímica y Biología Molecular 1, Universidad Complutense, Madrid, Spain.

Biochimica Et Biophysica Acta
|August 9, 2011
PubMed
Summary
This summary is machine-generated.

Protein S-palmitoylation, a reversible protein modification, regulates protein trafficking and localization. DHHC enzymes control this process, impacting protein function and cellular transport.

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Detection of Protein Palmitoylation in Cultured Hippocampal Neurons by Immunoprecipitation and Acyl-Biotin Exchange (ABE)
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Detection of Protein S-Acylation using Acyl-Resin Assisted Capture

Published on: April 10, 2020

Area of Science:

  • Biochemistry
  • Cell Biology
  • Molecular Biology

Background:

  • Protein S-palmitoylation is the most common protein acylation in eukaryotes.
  • It's a reversible post-translational modification crucial for protein function.
  • Other modifications like N-myristoylation and prenylation are often irreversible.

Purpose of the Study:

  • To provide an overview of how protein palmitoylation regulates protein trafficking.
  • To highlight the role of S-palmitoylation in controlling subcellular localization.
  • To discuss the involvement of DHHC enzymes in this process.

Main Methods:

  • Review of cotransfection experiments involving DHHC protein palmitoyl transferases.
  • Analysis of RNA interference results.
  • Examination of protein trafficking and subcellular localization studies.

Main Results:

  • S-palmitoylation is a tightly regulated, reversible modification.
  • DHHC enzymes, often Golgi-localized, control subcellular trafficking of acylated proteins.
  • Protein palmitoylation influences protein stability, localization, and interactions.

Conclusions:

  • Protein S-palmitoylation is a key regulator of protein trafficking and subcellular localization.
  • The reversibility of S-palmitoylation allows dynamic protein shuttling between compartments.
  • DHHC enzymes play a critical role in mediating these palmitoylation-dependent processes.