>tr|B4XN53|B4XN53_9BURK Phosphoribosyl-ATP pyrophosphatase OS=Burkholderia cenocepacia GN=hisE MTQSTEDTLLRLAAVIDSRKGGDPDQSYVSRLFHKGDDAVLKKIGEEATEVVLAAKDVRQ GGAPTALVGEVADLWFHCLVMLSHFDLSPADVIAELERREGLSGIEEKALRKRREREENG G