1. 1) Regan JW. EP2 and EP4 prostanoid receptor signaling. Life Sci., 74, 143–153 (2003).
2. 2) Narumiya S, Sugimoto Y, Ushikubi F. Prostanoid receptors: structures, properties, and functions. Physiol. Rev., 79, 1193–1226 (1999).
3. 3) Regan JW, Bailey TJ, Donello JE, Pierce KL, Pepperl DJ, Zhang D, Kedzie KM, Fairbairn CE, Bogardus AM, Woodward DF, Gil DW. Molecular cloning and expression of human EP3 receptors: evidence of three variants with differing carboxy termini. Br. J. Pharmacol., 112, 377–385 (1994).
4. 4) Sugimoto Y, Namba T, Honda A, Hayashi Y, Negishi M, Ichikawa A, Narumiya S. Cloning and expression of a cDNA for mouse prostaglandin E receptor EP3 subtype. J. Biol. Chem., 267, 6463–6466 (1992).
5. 5) Watabe A, Sugimoto Y, Honda A, Irie A, Namba T, Negishi M, Ito S, Narumiya S, Ichikawa A. Cloning and expression of cDNA for a mouse EP1 subtype of prostaglandin E receptor. J. Biol. Chem., 268, 20175–20178 (1993).