| Biological Roles of the Two Components of Crotoxin | |||||||||||
Abstract | |||||||||||
| Crotoxin, the Brazilian rattlesnake neurotoxin, generally behaves as a homogeneous protein; however, it is a molecular complex of an acidic and a basic protein. These can be separated after alkylation or acylation of the amino groups, or on carboxymethyl cellulose at pH 4, or on DEAE-cellulose in 6 M urea. The two proteins differ greatly in composition, but one or both may exist in the form of closely related variants. Their molecular weights appear to be about 8400 and 13,000. | |||||||||||
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