LRGILS-NH2 TFA is a reverse-sequence protease-activated receptor-2 (PAR-2)-inactive, negative control, and SLIGRL-NH2 is a PAR-2-activating peptide[1].
[1]. Nishikawa H, Kawai K, Tanaka M, et al. Protease-activated receptor-2 (PAR-2)-related peptides induce tear secretion in rats: involvement of PAR-2 and non-PAR-2 mechanisms. J Pharmacol Exp Ther. 2005;312(1):324-331.
















