Abstract
The principal toxin, named pelamitoxin a, was isolated from venom of the sea snake Pelamis platurus caught in Northern Formosan waters. Pelamitoxin a is a polypeptide containing 60 amino acid moieties, including 9 cysteines, with N-terminal methionine and C-terminal asparagine. Its amino acid composition appears to be identical to that of hydrophitoxin b ( Liu and Blackwell, Toxicon 12, 543, 1974) from venom of the sea snake Hydrophis cyanocinctus as well as schistosa 5 toxin from venom Enhydrina schistosa ( Fryklund et al., Biochemistry 11, 4633, 1972). These results indicate excellent prospects for a rational approach to production of a common antivenin effective against major toxins from several of the common sea snakes.
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