Establishing Cell Culture-Based Experimental Setups for Proximity Labeling Using Ascorbate Peroxidase (APEX)

  • David U. MickEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 2008)


Proximity labeling by ascorbate peroxidase (APEX) requires appropriate experimental setups that generate sufficient signal over background as a prerequisite for downstream analyses by mass spectrometry. Cell culture-based systems are easily accessible, yet, for proximity labeling of small structures must be carefully optimized in order to give satisfying results. How to establish and characterize APEX cell lines will be the topic of this chapter.

Key words

Proximity labeling Ascorbate peroxidase (APEX) Stable cell lines Immunofluorescence microscopy 



I thank Bianca Schrul and members of the Mick lab for critically reading the manuscript.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Center for Human and Molecular Biology (ZHMB), Medical Biochemistry and Molecular BiologySaarland University School of MedicineHomburgGermany

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