Pseudin-2 (Ps) is one of the four pseudin peptides isolated from the skin of the paradoxical frog Pseudis paradoxa. Pseudins are structurally related, cationic, amphipathic, a-helical anti-microbial peptides (AMP) that share sequence homology with an apoptosis regulating protein. Pseudin-2 is the most abundant and potent of the four pseudins.
Olson et al (2001) Pseudin-2: An Antimicrobial Peptide with Low Hemolytic Activity from the Skin of the Paradoxical Frog. Biochem. Biophys. Res. Commun. 288(4)1001 PMID: 11689009