Fig. 3From: Discovery of new cellulases from the metagenome by a metagenomics-guided strategySDS-PAGE analysis for the expression of the cellulase genes in E. coli BL21 (DE3). Lane 1, total proteins from recombinant E. coli BL21 cells without IPTG induction; lane 2, total proteins from recombinant E. coli BL21 cells induced by IPTG for 4 h; lane 3, purified cellulase; M, protein molecular weight markers. a cel7482; b cel3623; c cel36Back to article page