Expressed by the venom gland. Monoisotopic mass. Does not show activity on voltage-gated sodium channels, potassium channels, and calcium channels. All the following channels have been tested at 10 uM: Kv1.1/KCNA1, Kv1.2/KCNA2, Kv1.3/KCNA3, Kv1.4/KCNA4, Kv1.5/KCNA5, Kv1.6/KCNA6, Kv2.1/KCNB1, Kv3.1/KCNC1, Kv4.2/KCND2, Kv4.3/KCND3, Shaker IR, and Kv11.1/KCNH2/ERG1, as well as Nav1.2/SCN2A, Nav1.4/SCN4A, Nav1.5/SCN5A, Nav1.6/SCN8A, Nav1.8/SCN10A, and DmNav1, and the nicotinic acetylcholine receptor alpha-7 (CHRNA7). Belongs to the SA81-like family.