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Interaction of <i>Bacillus thuringiensis</i> Cry1 and Vip3A Proteins with <i>Spodoptera frugiperda</i> Midgut Binding Sites

Carmen Sara Hernández‐Rodríguez, Juan Ferré

Applied and Environmental Microbiology · 2009 · 161 citations · 8 references

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Abstract

Vip3Aa, Vip3Af, Cry1Ab, and Cry1Fa were tested for their toxicities and binding interactions. Vip3A proteins were more toxic than Cry1 proteins. Binding assays showed independent specific binding sites for Cry1 and Vip3A proteins. Cry1Ab and Cry1Fa competed for the same binding sites, whereas Vip3Aa competed for those of Vip3Af.

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