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Qualitative analysis of BLA (α-amylase) activity using starch agar and Lugol's iodine staining. Sectors are as follows: A, α-amylase (Sigma 3403); B, BLA-PhaC beads; C, control PhaC beads. Protein amounts for the numbered positions are as follows: 1, 56 μg; 2, 180 μg; 3 and 5, 21 μg; 4 and 6, 70 μg.
