41. The energy driving this polymerization comes from cleaving off a pyrophosphate ( two phosphate groups ). 42. UDP consists of the pyrophosphate group, the pentose sugar ribose, and the nucleobase uracil. 43. Pyrophosphoric acid is a medium strong salts, and esters of pyrophosphoric acid are called pyrophosphates . 44. In Drosophila, geranylgeranyl pyrophosphate is synthesised by HMG-CoA encoded by the Columbus gene. 45. Pyrosulfate, pyrophosphate , and dichromate adopt structures similar to that of Mn 2 O 7. 46. Zinc pyrophosphate is obtained by precipitating zinc as a phosphate, then heating over 1123 K. 47. This enzyme is also called "'dimethylallyl pyrophosphate : aspulvinone dimethylallyltransferase " '. 48. Each domain of AnPRT contains a magnesium ion and a pyrophosphate molecule as the active site. 49. This enzyme is also called "'pyrophosphate -purine nucleoside kinase " '. 50. The encoded protein forms a ubiquitous, homotrimeric enzyme that hydrolyzes dUTP to dUMP and pyrophosphate .
