3,4-dihydroxybenzoyl-[aryl-carrier protein] + AMP + diphosphate => holo-[aryl-carrier protein] + 3,4-dihydroxybenzoate + ATP
3,4-dihydroxybenzoyl-[aryl-carrier protein] + amp + diphosphate => holo-[aryl-carrier protein] + 3,4-dihydroxybenzoate + atp