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Fluorescence-Based Assay For Measuring OMA1 Activity

Methods in Molecular Biology, ISSN: 1940-6029, Vol: 2276, Page: 325-332
2021
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Book Chapter Description

Mitochondrial fusion depends on proteolytic processing of the dynamin-related GTPase protein, OPA1, which is regulated by the mitochondrial zinc metalloproteinase, OMA1. Last year we published a report describing a novel approach to directly measure the enzymatic activity of OMA1 in whole cell lysates. This fluorescence-based reporter assay utilizes an eight amino acid peptide sequence referred to as the S1 cleavage site where OMA1 cleaves within OPA1 and is flanked by a fluorophore and quencher. In this chapter, we provide additional insight into the OMA1 activity assay.

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