>tr|I7KY68|I7KY68_METBM Phosphoribosyl-ATP pyrophosphatase OS=Methanoculleus bourgensis (strain ATCC 43281 / DSM 3045 / OCM 15 / MS2) OX=1201294 GN=hisE PE=3 SV=1 MRDWSILDEVWQVIQDRAEHPSAGSYVSSVLTHRKGIDKSLEKVGEEAVEFILAAKNQVP ERTVSEAADLLFHFLVALQASGTDVADVLDELAARRK