phytyl diphosphate + 3 A <=> (2E,6E,10E)-geranylgeranyl diphosphate + 3 AH2
phytyl diphosphate + 3 a <=> (2e,6e,10e)-geranylgeranyl diphosphate + 3 ah2
phytyl diphosphate + 3 A <=> (2E,6E,10E)-geranylgeranyl diphosphate + 3 AH2
phytyl diphosphate + 3 a <=> (2e,6e,10e)-geranylgeranyl diphosphate + 3 ah2