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Binding of biotinylated CesA, XynE, and EndB probes to extracellular material of R. flavefaciens 17 cultures grown on either cellulose (C) or birchwood xylan (X). Concentrated culture supernatants were subjected to SDS-PAGE (gel). Duplicate samples were transferred to membranes and probed using the designated biotinylated construct. Numbers at left are molecular weights (MW) in thousands.
