HPi1 is a selective and orally active antimicrobial against Helicobacter pylori (IC50: 0.24 μM and a MIC of 0.08-0.16 μg/mL).

IRBP (1-20), human is the 1-20 fragment of interphotoreceptor retinoid binding protein (IRBP).This peptide is a 1 to 20 amino acid fragment of the interphotoreceptor retinoid binding protein (IRBP). IRBP is a 140-kDa glycolipoprotein residing in the interphotoreceptor matrix between the neural retina and the retinal pigment epithelium.

β-Casomorphin Fragment 1-5 (BCM5), an opioid receptor agonist, is a member of the β-casomorphin peptide family derived from β-casein. β-casomorphins are used to study their differential effects on processes such as hyperglycemia, oxidative stress, opioid signalling and immunosuppression.