In this study,cry1 C antigenic epitope region of cry1 C was predicted by bioinformatics analysis and designated as Δcry1 C.The nucleotide sequence of the Δcry1 C was synthesized after codon optimization,and then recombinant expression vector pET28 b(+)-Δcry1 Cwas constructed. To prepare cry1 C polyclonal antibody,His6-Δcry1 C recombinant protein was purified after induction in Escherichia coli competent cell BL21(DE3),and then was used to immunize New Zealand white rabbits as antigen. ELISA assay showed tha...