Figure 6From: Comparison of expression systems for the extracellular production of mannanase Man23 originated from Bacillus subtilis B23The construction of expression plasmid pBPS- man23. MLS: multiple clone sites; cat-5: chloramphenicol resistance gene; Emr: erythromycin resistance gene; ori: replication of E. coli; rep: replication of B. brevis; PS: decoding gene of the promoter and signal peptide of B. brevis.Back to article page