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PAR2-activating peptide 2fLI induces calcium signaling. A: Fluorescence responses resulted from the addition of varying concentrations of PAR2-activating peptide 2fLI were standardized relative to the peak fluorescence elicited by the addition of calcium ionophore A23187 (7.5 µM). The addition inactive reverse-sequence peptide 2fO (10 µM) did not elicit a response. B: 2fLI concentration response curve (n = 5).
