Creation of a Cellooligosaccharide-Assimilating Escherichia coli Strain by Displaying Active Beta-Glucosidase on the Cell Surface via a Novel Anchor Protein

We demonstrated direct assimilation of cellooligosaccharide using Escherichia coli displaying beta-glucosidase (BGL). BGL from Thermobifida fusca YX (Tfu0937) was displayed on the E. coli cell surface using a novel anchor protein named Blc. This strain was grown successfully on 0.2% cellobiose, and the optical density at 600 nm (OD 600 ) was 1.05 after 20 h.