Blocks Kv3 voltage-gated potassium channels. Reduces blood pressure. Experimental results show no expression in the ectodermal tissue from the distal and proximal tentacles, body wall, and oral disk. Since paralogs are expressed in this tissue, an expression of this toxin in this tissue is probable. The negative results could be explained by the very low abundance of EST sequences. Lacks the conventional Cys residue at position 55. Thus, only 2 disulfide are possible present. Belongs to the sea anemone type 3 (BDS) potassium channel toxin family. Opinions are divided on whether Anemonia viridis (Forsskal, 1775) and Anemonia sulcata (Pennant, 1777) are separate species.