Figure 1From: Cloning, secretory expression and characterization of recombinant β-mannanase from Bacillus circulans NT 6.7SDS-PAGE and zymogram analysis of recombinant β-mannanase from E. coli expression system. (A) SDS-PAGE : lane M, protein marker (Invitrogen, USA); lane 1, crude culture supernatant; lane 2, crude cell lysate. (B) zymogram analysis: lane 1, crude culture supernatant; lane 2, crude cell lysate.Back to article page