Amino acid sequences of neurotoxins I and III of the elapidae snake Naja mossambica massambica.

The amino acid sequences of two neurotoxins of the African cobra Naja mossambica mossambica have been determined using almost uniquely phenylisothiocyanate degradation in a liquid protein sequencer programmed alternatively with 'protein' and 'peptide' programs. When compared to known sequences of so-called 'short' neurotoxins belonging to other Elapidae snakes, neurotoxins I and III of Naja mossambica mossambica are very similar to the cobrotoxin, a neurotoxin isolated from the formosan cobra Naja atra atra.