argR Regulates arginine biosynthesis genes (By similarity). SaurJH9_1579 ARGR_STAA9 150 MPKKSVRHIKIREIISNEQIETQDELVKRLNDYDLNVTQATVSRDIKELQLIKVPIPSGQYVYSLPNDRKFHPLEKLGRYLMDSFVNIDGTDNLLVLKTLPGNAQSIGAILDQINWEEVLGTICGDDTCLIICRSKEASDEIKSRIFNLL Arginine repressor