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	
1.6.1.1	expressed in Escherichia coli DH5alpha cells	
1.6.1.1	expression in Escherichia coli	
1.6.1.1	expression of the soluble enzyme in Escherichia coli strain DH5alpha