4.2.3.38 alendronate - 5337 4.2.3.38 etidronate - 5338 4.2.3.38 farnesyl thiophosphate - 197425 4.2.3.38 geranyl thiodiphosphate - 197426 4.2.3.38 Mn2+ activates, but Mn2+ at concentrations higher than 1 mM results in a decline of activity with either substrate 11 4.2.3.38 pamidronate - 7519