nuri77Nur77-GFP reporter mice as a useful tool study Nur77 promoter activity during renal IRI. (A) Induction of GFP transcript level mirrored that of Nur77 in the kidney tissues 24 hours after IRI,The nuclear receptor Nur77 (also known as TR3 or NGFI-B), encoded by the immediate early gene Nr4a1, belongs to the steroidthyroidretinoid superfamily (Hazel et al.,