Shows a weak inhibition on the voltage-gated calcium channel Cav2.1/CACNA1A and some voltage-gated sodium channels (with 1 uM toxin tested: 22.08% inhibition on Cav2.1/CACNA1A, 6.6% on Nav1.1/SCN1A, 4.2% on Nav1.5, and 16% on Nav1.7). Shows a weak inhibition on the voltage-gated calcium channel Cav2.1/CACNA1A (28.06% at 1 uM). Expressed by the venom duct. The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin. Monoisotopic mass. Monoisotopic mass. Does not show activity on Cav1.2/CACNA1C, and Cav2.2/CACNA1B. Does not show activity on Nav1.1/SCN1A, Nav1.5/SCN5A, Nav1.7/SCN9A, Cav1.2/CACNA1C, and Cav2.2/CACNA1B. Belongs to the neurotoxin 14 (magi-1) family. 08 (Ltx-4) subfamily.