Mirabilis jalapa L. contains basic (MJ30) and acidic (MJC) Ribosome-inactivating proteins (RIPs). Further purification of MJC has been found two RIPs, MJCO.3 and MJCO,5' This study is aimed to prove the cytotoxic selectivity of MJCO.3and MJCO.5against many cancer cell-lines and normal cell line. The two RIPs, MJCo,jend MJC05 were tested their cytotoxic effect on 8 human cancer cell lines and no…