Retinoic acid-induced protein 3 is a protein that in humans is encoded by the GPRC5Agene.[5][6] This gene and its encoded mRNA was first identified as a phorbol ester-induced gene, and named Phorbol Ester Induced Gen 1 (PEIG-1);[7] two years later it was rediscovered as a retinoic acid-inducible gene, and named Retinoic Acid-Inducible Gene 1 (RAIG1).[5] Its encoded protein was later named Retinoic acid-induced protein 3.
^Cafferata EG, Gonzalez-Guerrico AM, Pivetta OH, Santa-Coloma TA (1996). "Identification by differential display of a mRNA specifically induced by 12-O-tetradecanoylphorbol-13-acetate (TPA) in T84 human colon carcinoma cells". Cell. Mol. Biol. (Noisy-le-grand). 42 (5): 797–804. PMID8832110.