Fig. 3From: Antiplasmodial and trypanocidal activity of violacein and deoxyviolacein produced from synthetic operonsCytotoxicity of violacein and deoxyviolacein. MTT assay used to investigate the cytotoxicity of violacein and deoxyviolacein to (a) COS-7 and (b) HepG2 cells, indicated that deoxyviolacein shows no measurable toxicity to mammalian cells, whereas the IC50 for violacein is approximately 2.5 μM and 1.4 μM for COS-7 and HepG2 cells, respectivelyBack to article page