Cardiotoxins isoforms

The Taiwan cobra (Naja naja atm) is a rich source for the cardiotoxins (37). To date six isoforms have been isolated from this source (38). The isoforms are numbered on column chromatographic profiles (39). Of the six isoforms, cardiotoxin III (CTX III) is the major fraction. It constitutes 50 - 60% of the total dry weight of the cardiotoxin isoforms and hence the best characterized (of the toxin isoforms) from this source (Naja naja atm) (40). 

Chiou, S., Raynor, R.L., Zheng, B., Chambers, T.C., and Kuo, J.F., 1993, Cobra venom cardiotoxin (cytotoxin) isoforms and neurotoxin Comparitive potency of protein kinase C inhibition and cancer cell cytotoxicity and modes of enzyme inhibition. Biochemistry 32 2062-2067. 

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