1.6.1.1 Escherichia coli strain is transformed with a two plasmid system, one encoding the udhA gene and the other one encoding the phb operon 672770 1.6.1.1 expressed in Escherichia coli DH5alpha cells 725040 1.6.1.1 expression in Escherichia coli 392592 1.6.1.1 expression of the soluble enzyme in Escherichia coli strain DH5alpha 725040