Background:

Gly-Phe-Arg is a superpotent synthetic tripeptide mimics of the mud-crab pumping pheromone.

Gly-Phe-Arg produces not only a statistically significant increase in the relative number of pumping mud crabs but also a substantial increase in the pumping rate ratio[1].

[1]. Pettis RJ, et al. Superpotent synthetic tripeptide mimics of the mud-crab pumping pheromone. Int J Pept Protein Res. 1993 Oct;42(4):312-9.