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STAR Protoc. 2021 Dec 29;3(1):101068. doi: 10.1016/j.xpro.2021.101068. eCollection 2022 Mar 18.

GST-Perfringolysin O production for the localization and quantification of membrane cholesterol in human and mouse brain and liver.

STAR protocols

Leire Goicoechea, Fabian Arenas, Fernanda Castro, Susana Nuñez, Sandra Torres, Carmen Garcia-Ruiz, José C Fernandez-Checa

Affiliations

  1. Department of Cell Death and Proliferation, Institute of Biomedical Research of Barcelona (IIBB), CSIC, Barcelona, Spain.
  2. Liver Unit, Hospital Clinic i Provincial de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
  3. Centro de Investigación Biomédica en Red (CIBEREHD), Barcelona, Spain.
  4. Research Center for ALPD, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.

PMID: 35024626 PMCID: PMC8728529 DOI: 10.1016/j.xpro.2021.101068

Abstract

Abnormal cholesterol metabolism is linked to many neurodegenerative disorders. Here, we present a protocol for the production of a recombinant protein consisting of a Glutathione-S-Transferase tag fused with the Perfringolysin O (PFO). The GST-PFO tag enables analysis of the localization of cholesterol in subcellular membranes of human and mice brain and liver tissues. We have used this approach for samples from Niemann-Pick type C disease and non-alcoholic steatohepatitis models. The construct may also have applications for the diagnosis of cholesterol-accumulating disorders. For complete details on the use and execution of this protocol, please refer to Kwiatkowska et al. (2014).

© 2021 The Author(s).

Keywords: Biotechnology and bioengineering; Cell Biology; Cell Membrane; Health Sciences; Metabolism; Microscopy; Model Organisms; Molecular Biology; Molecular/Chemical Probes; Neuroscience; Protein expression and purification

Conflict of interest statement

The authors declare no competing interests.

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