>tr|A0A0W1JD21|A0A0W1JD21_DESHA ATP phosphoribosyltransferase regulatory subunit OS=Desulfitobacterium hafniense GN=hisZ MPRSSLGLRIPEGMHDLLPDELALQEQAETSALDLFKAWAYQKVATPTLEYGACIQPVEE EGDSFFKLFDRQGHVLVLRPELTTSIARMVSTRMRGTAFPLRLCYAADVFRYSKSHKQEF RQVGVELIGSASSAADAEVVALAIEALRKIGGMDFQINLGHMGIFTGIMAELGVPQEFQL HYQEKLARKDFVGIERLVKDYGFETRVQDVLLKLPHLHGKEDMLDQVLEWSRRPSLLEAV NALRQVYRYLKDFGVQDYVSLDLGILRGFSYYTGAVFEGYVPGVGFPVVEGGRYDALYGD FGEDAPATGFAINLKAIIEQMVCSNAERPEVLVYGSDVSKVIAEARKLRQTGKRVEMCLE SLTQEQAMESAECKGIKEVVCAR