IDI2_STAAU Catalyzes the 1,3-allylic rearrangement of the homoallylic substrate isopentenyl (IPP) to its allylic isomer, dimethylallyl diphosphate (DMAPP) (By similarity). 349 Isopentenyl-diphosphate delta-isomerase MSDFQREQRKNEHVEIAMAQSDAMHSDFDKMRFVHHSIPSINVNDIDLTSQTPDLTMTYPVYINAMTGGSEWTKNINEKLAVVARETGLAMAVGSTHAALRNPRMAETFTIARKMNPEGMIFSNVGADVPVEKALEAVELLEAQALQIHVNSPQELVMPEGNREFVTWLDNIASIVSRVSVPVIIKEVGFGMSKELMHDLQQIGVKYVDVSGKGGTNFVDIENERRANKDMDYLSSWGQSTVESLLETTAYQSEISVFASGGLRTPLDAIKSLALGAKATGMSRPFLNQVENNGIAHTVAYVESFIEHMKSIMTMLDAKNIDDLTQKQIVFSPEILSWIEQRNLNIHRG Isopentenyl pyrophosphate isomerase fni