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Methods Enzymol. 2013;526:45-59. doi: 10.1016/B978-0-12-405883-5.00003-X.

Visualization of intracellular hydrogen peroxide with HyPer, a genetically encoded fluorescent probe.

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1
Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, RAS, Moscow, Russia.

Abstract

The fluorescent sensor HyPer allows monitoring of intracellular H2O2 levels with a high degree of sensitivity and specificity. Here, we provide a detailed protocol of ratiometric imaging of H2O2 produced by cells during phagocytosis, including instructions for experiments on different commercial confocal systems, namely, Leica SP2, Leica SP5, and Carl Zeiss LSM, as well as wide-field Leica 6000 microscope. The general experimental scheme is easily adaptable for imaging H2O2 production by various cell types under a variety of conditions.

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