>sp|Q9HMD4|HIS2_HALSA Phosphoribosyl-ATP pyrophosphatase OS=Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1) OX=64091 GN=hisE PE=3 SV=1 MSDPLRELFDVIEDRKETMPENSYTASLLADDEKGENAALEKVGEEATEFLLAAKDGDTD ELAHEGADVVYHMLVVLAQQDMDVEALLAELDDRR