Ki: 106 nM (Furin), 580 nM (PACE4) and 13.2 μM (PC1)
Hexa-D-arginine effectively blocks Pseudomonas aeruginosa exotoxin A (PEA)-induced cell lysis and is itself noncytotoxic.
Administration of Hexa-D-arginine (0.1, 1, or 10 nM) to Pseudomonas aeruginosa exotoxin A (PEA)-treated mice (6-week-old FVB and 129/Sv mice) significantly improves their survival rate and also decreases circulating levels of TNF-α.