ID 2.5.1.71 DE leachianone-G 2''-dimethylallyltransferase. AN leachianone G 2''-dimethylallyltransferase. AN LG 2''-dimethylallyltransferase. AN LGDT. CA dimethylallyl diphosphate + leachianone G = diphosphate + CA sophoraflavanone G. CC -!- The reaction forms the lavandulyl sidechain of sophoraflavanone G by CC transferring a prenyl group to the 2'' position of another prenyl CC group attached at postiion 8 of leachianone G. CC -!- The enzyme is specific for prenyl diphosphate as the prenyl donor, CC as it cannot be replaced by isopentenyl diphosphate or geranyl CC diphosphate. CC -!- Euchrenone a7 (a 5-deoxy derivative of leachianone G) and kenusanone CC I (a 7-methoxy derivative of leachianone G) can also act as CC substrates, but more slowly. CC -!- Along with EC 1.14.14.142 and EC 2.5.1.70, this enzyme forms part of CC the sophoraflavanone-G biosynthesis pathway. //