The cry1Ab-Ac gene was constructed by combining 1 - 286 amino acid
residues of Domain-I, 287 - 459 are of Domain-II, conforming to
Cry1Ab of Bacillus thuringiensis subsp. Kurstaki HD1. Sequence
460-608 amino acid residues are of Domain III, conforming to Cry1Ac
of B. thuringiensis subsp. Kurstaki HD73.
The Cry1Ab/Ac synthetic gene is codon optimized and truncated
(1,824 bp) encoding insecticidal protein (608 amino acids) of
Bacillus thuringiensis Cry1A. Insecticidal protein against certain