Expressed by the venom duct (PubMed:19380747, PubMed:23031820). Is mostly present in part 5 of the venom duct (distal part near the pharynx), and less abundantly present in part 4 of the venom duct (PubMed:23031820). The cysteine framework is V (CC-CC). Contains 2 disulfide bonds. Contains 2 disulfide bonds that can be either 'C1-C3, C2-C4' or 'C1-C4, C2-C3', since these disulfide connectivities have been observed for conotoxins with cysteine framework V (for examples, see AC P0DQQ7 and AC P81755).. Without oxidation at Met-55. With oxidation at Met-55. Belongs to the conotoxin T superfamily.