iScience (May 2020)

A PEROXO-Tag Enables Rapid Isolation of Peroxisomes from Human Cells

  • G. Jordan Ray,
  • Elizabeth A. Boydston,
  • Emily Shortt,
  • Gregory A. Wyant,
  • Sebastian Lourido,
  • Walter W. Chen,
  • David M. Sabatini

Journal volume & issue
Vol. 23, no. 5

Abstract

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Summary: Peroxisomes are metabolic organelles that perform a diverse array of critical functions in human physiology. Traditional isolation methods for peroxisomes can take more than 1 h to complete and can be laborious to implement. To address this, we have now extended our prior work on rapid organellar isolation to peroxisomes via the development of a peroxisomally localized 3XHA epitope tag (“PEROXO-Tag”) and associated immunoprecipitation (“PEROXO-IP”) workflow. Our PEROXO-IP workflow has excellent reproducibility, is easy to implement, and achieves highly rapid (~10 min post homogenization) and specific isolation of human peroxisomes, which we characterize here via proteomic profiling. By offering speed, specificity, reproducibility, and ease of use, the PEROXO-IP workflow should facilitate studies on the biology of peroxisomes.

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