Profiles of C. thermocellum S14 cell growth and released cellulosomal protein in culture broth during biological saccharification. The protein concentration of the pellet was used as an indication of cell mass and cellulosomal protein during cultivation. C. thermocellum was cultured with or without CglT (+CglT and –CglT, respectively) using 100 g/L cellulose (617 mM glucose equivalents). The pH values of each culture are indicated with dotted lines. Red (+CglT) and blue lines (−CglT) indicate residual cellulose content in culture broth. Error bars represent ± SD (n = 3).