Fig. 1. Analysis of the ecmA promoter sub-region that directs expression in pstA cells.
(A) Schematic representation of the two 5′ deletions of the ecmA promoter that define the 39-mer and expression analysis of slugs expressing them. (B). Schematic representation and expression analysis of 4×39:lacZ, a lacZ construct containing actin 15 basal promoter elements coupled to a 4-fold multimerized tandem array of the 39-mer. Bar represents 200 μm.