157 argR Arginine repressor ARGR_DEIRA DR_0742 MLGKEIGKDQRQKRIQDIILRESVSTQAELVKLLAKEGVQVTQATVSRDINELRLVRVPIGKGRHRYALAQYGGDSDIEEQLARLFQSFVQDVDRGENILVIRTADGHASGVALLLDRWKRDDIVGTLAGEDTIMVVARSTHDGESLMEEFNALMLG Regulates arginine biosynthesis genes (By similarity).