>tr|A0A7J9NQU3|A0A7J9NQU3_METMI Phosphoribosyl-ATP pyrophosphatase OS=Methanococcus maripaludis GN=hisE MNVLKEVYATIEKRIEEKPEGSYVAKLTTDDKKTAVNKICEKVGEEAAEVIIAAKDNDKA EIIYESADLIFHTMVLLAKSGITYEELSEEFKKRMK