Very potent toxin that exhibits a wide range of toxicities over various organisms and cells including brine shrimp larvae (Artemia salina), sea hare eggs (Aplysia kurodai), mice, and cultured mammalian cells (PubMed:30965587). A SOR-containing fraction cleaves plasmid DNA in a bivalent metal ion dependent manner suggesting genotoxicity of SOR (PubMed:30965587). LD(50) is 0.287 ug/kg by intracerebroventricular injection into mice (PubMed:30965587), when observation is prolonged over 48-54 hours after injection. LD(50) is 0.34 ug/mL when injected into brine shrimp (PubMed:30965587). Does not show any hemagglutinating or hemolytic activity against rabbit erythrocytes (PubMed:30965587). Does not show antimicrobial activity against both Gram-positive and -negative bacteria (PubMed:30965587). About 18 sequence fragments were determined for this protein. Only the 2 longest are indicated here.