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Optical microscope graphs of parasporal crystal proteins from the wild-type strain B. thuringiensis YBT-1518 and the recombinant strains BMB0224, BMB0250, and BMB0215. (A) YBT-1518; (B) BMB0224 (harboring the 45-kDa protein gene cry55Aa1); (C) BMB0250 (harboring the 54-kDa protein gene cry6Aa2); (D) BMB0215 (harboring the 140-kDa protein gene cry5Ba2). Magnification, ×1,000.
