Figure 4From: Surface-associated MUC5B mucins promote protease activity in Lactobacillus fermentum biofilms Degradation of the MUC5B polypeptide backbone by proteases from biofilms of L. fermentum. A control sample of MUC5B (a) and MUC5B which had been in contact with biofilm cells for 24 hours (b) were subjected to SDS-PAGE on 4–12% gels. After electro-blotting onto PVDF membranes, MUC5B was detected using the LUM5B-14 antiserum. The bottom of the well is indicated.Back to article page