5.5.1.2	cloning and genetic organization of the pca gene cluster	3668	
5.5.1.2	expressed in Escherichia coli BL21(DE3) cells	694040	
5.5.1.2	expressed in Escherichia coli strain N4830	661079	
5.5.1.2	expression as His-tagged protein in Escherichia coli	681790	
5.5.1.2	expression in Escherichia coli	649257, 679754