Figure 1: SDS PAGE analysis of the purified 1,4-β-D-glucan glucohydrolase (MW 79 kDa, lane 2) from cell lysate (lane 1) over-expressed with GST-fused 1,4-β-D-glucan glucohydrolase in E. coli BL21 (105 kDa, fused with GST 26 kDa and 1,4-β-D-glucan glucohydrolase 79 kDa), and molecular weight markers (lane M).