U-Omp19 samples were run under both non-reducing and reducing conditions by SDS-PAGE as described previously [18] (link). For WB, after being subjected to SDS-PAGE, samples were transferred onto a nitrocellulose membrane. A polyclonal rabbit anti-U-Omp19 serum followed by anti-rabbit IgG labeled with IRDye 680 (LI-COR Biosciences) were used to visualize the bands. Images were captured and documented with an Odyssey infrared image-scanner (LI-COR Biosciences).
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