Chapter title |
A Microplate-Based Bioluminescence Assay of Mitochondrial Calcium Uptake
|
---|---|
Chapter number | 15 |
Book title |
Mitochondria
|
Published in |
Methods in molecular biology, March 2017
|
DOI | 10.1007/978-1-4939-6824-4_15 |
Pubmed ID | |
Book ISBNs |
978-1-4939-6822-0, 978-1-4939-6824-4
|
Authors |
María Teresa Alonso, Paloma Navas-Navarro, Javier García-Sancho |
Editors |
Dejana Mokranjac, Fabiana Perocchi |
Abstract |
Mitochondrial Ca(2+) homeostasis is crucial for regulating vital functions such as respiration or apoptosis. Targeted aequorins are excellent probes to measure subcellular Ca(2+). Ca(2+) concentration in mitochondria ([Ca(2+)]M) is low at rest (about 10(-7) M) and can increase to the micromolar or even approach the millimolar range, upon cell activation. Here we describe a new quantitative luminescent protocol to directly measure mitochondrial Ca(2+) uptake, optimized for high throughput. The sensitivity of the method allows detection of changes in either the capacity or the affinity of mitochondrial Ca(2+) transport. |
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