Z-VRPR-FMK (TFA) (VRPR) is a tetrapeptide and a selective and irreversible inhibitor of lymphoma translocation protein 1 (MALT1) in mucosa-associated lymphoid tissue.

MIF-1 (Melanostatin), an endogenous brain peptide, is a potent dopamine receptor allosteric modulator. MIF-1 inhibits melanin formation. MIF-1 blocks the effects of opioid receptor activation to modulate the analgesic effects. MIF-1 accesses from the blood to the CNS by directly crossing the blood-brain barrier (BBB).

Uty HY Peptide (246-254) is a male-specific graft antigen H-Y derived from the H-Y epitopes of the widely transcribed tetrapeptide duplication gene H-YDB on the Y chromosome (Uty) protein。