Figure 1
Schematic representation of the C. thermocellum cellulosome. The cellulosome is an extracellular multienzyme assembly attached to the cell wall via a surface layer homology (SLH)-like module of an anchoring scaffoldin. An assortment of the 70 possible glycoside hydrolases (GHs) can be incorporated into the cellulosome by binding to only nine available type I cohesin modules through the cohesin–dockerin interaction. The enzyme-borne dockerin (Doc) modules exhibit essentially the same specificity and can bind to any of the nine homologous cohesins (Coh). The cellulose-binding module (CBM3a) of the primary scaffoldin binds the cellulosome complex and the attached cell to the cellulosic substrate |