2.5.1.1	Co2+	required for the production of geranyl diphosphate	738382	
2.5.1.1	Co2+	with dimethylallyl diphosphate and isopentenyl diphosphate the enzyme is far more active with Co2+ as an additive than with any other tested metal ion. In the presence of Co2+ or Mn2+, with dimethylallyl diphosphate as a cosubstrate, the enzyme produces about 96% geranyl diphosphate and only 4% farnesyl diphosphate. In contrast, with Mg2+ as an additive, PcIDS1 produces 18% geranyl diphosphate and 82% farnesyl diphosphate	723664	
2.5.1.1	Mg2+	required	739121	
2.5.1.1	Mg2+	required for activity	738211	
2.5.1.1	Mg2+	required, activity reaches its highest value at 10 mM MgCl2. At 5 or 15 mM MgCl2, activity is about 65% of maximum	706332	
2.5.1.1	Mg2+	with dimethylallyl diphosphate and isopentenyl diphosphate the enzyme is far more active with Co2+ as an additive than with any other tested metal ion. In the presence of Co2+ or Mn2+, with dimethylallyl diphosphate as a cosubstrate, the enzyme produces about 96% geranyl diphosphate and only 4% farnesyl diphosphate. In contrast, with Mg2+ as an additive, PcIDS1 produces 18% geranyl diphosphate and 82% farnesyl diphosphate	723664	
2.5.1.1	additional information	the enzyme is inactive without adding divalent metal cations	723664