Fig. 4From: Evaluation of gene expression cassettes and production of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) with a fine modulated monomer composition by using it in Cupriavidus necator Activity of gene expression cassettes determined by lacZ reporter assay. Cells were grown with fructose (a) or palm kernel oil (b) as a sole carbon source. Triplicate samples from each of the two independent experiments were measured by optical absorbance (at 570 nm) of the chromogenic product, chlorophenol red. Data are presented as mean with error bars indicating the standard deviation. Non-P, non-promoter construct; RBS, with potential ribosome binding site of phaC1; dRBS, RBS disruptantBack to article page