Arphamenine B
Arphamenine B is a Zn2+-dependent exopeptidase that selectively removes arginine and/or lysine residues from the NH2-terminus of several peptide substrates. Arphamenine B is an inhibitor of aminopeptidase B that can be isolated from bacteria. Arphamenine B enhances the immune response and is used to characterize novel proteases[1][2][3].
Internal Reference:
cell25sk6339