FIG 6.

Diagram of β-glucan utilization by Bacteroides of the HGM. For each species, the binding or catalytic specificity of the proteins encoded by the endogenous 1,3GUL is indicated on the cell surface (Lam, laminarin; bMLG, barley mixed-linkage β-glucan; yBG, yeast β-glucan; NB, no binding). The capacity of each species to utilize individual β-glucans for growth, which arises as a combination of these individual specificities, as well as periplasmic transport/sensing, is indicated in the Venn diagram.