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- W4200205726 abstract "Vacuolar and cytosolic pH are highly regulated in yeast cells and occupy a central role in overall pH homeostasis. We describe protocols for ratiometric measurement of pH in vivo using pH-sensitive fluorophores localized to the vacuole or cytosol. Vacuolar pH is measured using BCECF, which localizes to the vacuole in yeast when introduced into cells in its acetoxymethyl ester form. Cytosolic pH is measured with a pH-sensitive GFP expressed under control of a yeast promoter, yeast pHluorin. Methods for measurement of fluorescence ratios in yeast cell suspensions in a fluorimeter are described. Through these protocols, single time point measurements of pH under different conditions or in different yeast mutants have been compared and changes in pH over time have been monitored. These methods have also been adapted to a fluorescence plate reader format for high-throughput experiments. Advantages of ratiometric pH measurements over other approaches currently in use, potential experimental problems and solutions, and prospects for future use of these techniques are also described." @default.
- W4200205726 created "2021-12-31" @default.
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- W4200205726 date "2013-04-19" @default.
- W4200205726 modified "2023-10-18" @default.
- W4200205726 title "Measurement of Vacuolar and Cytosolic pH <em>In Vivo</em> in Yeast Cell Suspensions" @default.
- W4200205726 doi "https://doi.org/10.3791/50261-v" @default.
- W4200205726 hasPublicationYear "2013" @default.
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