Fig 2. Schematic diagram representing the co-expression of the Ma4CL3 and MaSTS proteins.

4-S was carried by plasmid pETDuet-1/pACYCDuet-1; S4 and 4S were carried by plasmid pET28a(+); 4-T-S was also carried by plasmid pET28a(+), but with an independent T7 promoter and lac operator.