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Western blot analysis of PblA and PblB production in uninduced and induced cultures. Proteins were extracted from untreated cultures of PS344 (lane 1), SF100 (lane 2), and cultures of SF100 treated with mitomycin C (lane 3) or UV light (lane 4). Blots were probed with either anti-PblA serum (A) or anti-PblB serum (B).
