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. 2019 May 23;17:41. doi: 10.1186/s12915-019-0662-4

Fig. 6.

Fig. 6

Targeting an ATP/ADP sensor to RFP-tagged proteins. a Schematic of RNb-Perceval-HR fusion (RNb-PHR) bound to RFP. b HeLa cells co-expressing RNb-PHR and TOM20-mCh were imaged in HBS using epifluorescence microscopy. The yellow box indicates the region enlarged in subsequent panels. Scale bars 10 μm (main image) and 2.5 μm (enlarged images). c, d Changes in fluorescence for each excitation wavelength (405 and 488 nm, F/F0) (c) and their ratio (R/R0, where R = F405/F488) (d) of mitochondrially targeted RNb-Perceval-HR after addition of 2-deoxyglucose (2DG, 10 mM), oligomycin (OM, 1 μM) and antimycin (AM, 1 μM). The results indicate a decrease in the ATP/ADP ratio at the OMM. Results are representative of 3 independent experiments