>tr|F4BA32|F4BA32_ACIHW Phosphoribosyl-ATP pyrophosphatase OS=Acidianus hospitalis (strain W1) OX=933801 GN=hisE PE=3 SV=1 MSEVLDKLYEIILQRLEKMPENSYTAELVKKGKGYIARKVGEEAVETIVASLYEGRDRFI SEAADLMYHLWVLMAVEGVKPEELYAELKRRMK