7.2.2.1	-	210267, 210268, 210269, 210272	
7.2.2.1	expressed in Escherichia coli JM103 cells	747288	
7.2.2.1	expressed in Escherichia coli KNabc cells	749345	
7.2.2.1	expressed in Escherichia coli strain DH10B	669124	
7.2.2.1	expressed in Oryza sativa cultivar Nipponbare	734878	
7.2.2.1	genes ntpE and ntpF encoding the two subunits of the enzyme, expression of both subunits and the N-terminal soluble domain of NtpI as His-tagged proteins in Escherichia coli strain BL21(DE3)	698773	
7.2.2.1	ntp operon, DNA and amino acid sequence determination and analysis, expression in Escherichia coli strain DH5alpha	684748