Fig. 2From: Site-directed mutagenesis in Cry proteins of Bacillus thuringiensis to demonstrate the role of domain II and domain III in toxicity enhancement toward Spodoptera lituraSite-specific mutagenesis of cry1Ac and cry2Aa genes through alanine scanning. A–B Comparison of mutants and non-mutants clones of cry1Ac and cry2Aa genes, respectively. Amino acids substituted with alanine are highlighted in redBack to article page