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. 2018 Nov 5;150(11):1567–1582. doi: 10.1085/jgp.201812119

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© 2018 Reddy et al.

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Figure 4. — Time-dependent expression of the PKA FRET biosensor, AKAR3, in adult mouse and rabbit cardiomyocytes. (A and B) Bright-field and corresponding CFP fluorescence images of adult mouse (A) and rabbit (B) cardiomyocytes at different time points of culture as indicated. All images were acquired at 40× magnification. Scale bar = 100 µm.