FIGURE 3.

Concentration-dependence of Isc induced by NK₄-M2GlyR-p22 derived peptides with tryptophan and arginine amino acid substitutions on MDCK epithelial monolayers. Symbols represent the mean and standard error of six or greater observations for each concentration tested. Solid lines represent the best fit of a modified Hill equation to each data set. The NK₄-M2GlyR derived peptides dose dependent Isc curves are as follows: sequence 1 (○), sequence 7 (□), sequence 8 (▵), sequence 9 (×), sequence 10 (▿), and sequence 11 (⋄).