>tr|A0A4R5KZ54|A0A4R5KZ54_9MICC Phosphoribosyl-ATP pyrophosphatase OS=Arthrobacter terricola GN=hisE MKNFETLFAELSEKAATRPAGSRTVAELDSGIHGIGKKVVEEAAEVWMAAEYESDEAAAE EISQLLYHLQVLMLAKGLSLEDVYKHL