Ribosome-inactivating proteins (RIPs) are enzymes (N-glycosidases classified as rRNA N-glycohydrolases, EC 3.2.2.22), mostly of plant origin, but also bacterial, fungal and algal which cause irreversible inhibition protein biosynthesis carried out by ribosomes superior organisms some bacteria. The enzymatic activity consists specific depurination that renders them unable to interact with elonga...