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Functional interaction between the conserved NPFF peptide and Npffrs. Induction of CRE-driven luciferase activities by NPFF in 293T cells transfected with Npffr1 (A), Npffr2-1 (B), and Npffr2-2 (C). The results are presented as the mean value ± S.E.M. from three independent experiments, each conducted in triplicate, and are expressed as the ratio of the increase in luciferase activity relative to that of the control.
