The protein encoded by this gene belongs to the family of G-protein coupled receptors, that are preferentially activated by adenosine and uridine nucleotides. This gene aligns with an internal intron of the retinoblastoma susceptibility gene in the reverse orientation.
In February 2008 researchers at the University of Bonn announced they have found the genetic basis of two distinct forms of inherited hair loss, opening a broad path to treatments for baldness. They found that mutations in the gene P2RY5 causes a rare, inherited form of hair loss called Hypotrichosis simplex. It is the first receptor in humans known to play a role in hair growth. The fact that any receptor plays a specific role in hair growth was previously unknown to scientists and with this new knowledge a focus on finding more of these genes may be able to lead to therapies for many different types of hair loss.
^ abPasternack SM, von Kügelgen I, Aboud KA, Lee YA, Rüschendorf F, Voss K, Hillmer AM, Molderings GJ, Franz T, Ramirez A, Nürnberg P, Nöthen MM, Betz RC (March 2008). "G protein-coupled receptor P2Y5 and its ligand LPA are involved in maintenance of human hair growth". Nat. Genet. 40 (3): 329–34. doi:10.1038/ng.84. PMID18297070.
Herzog H, Darby K, Hort YJ, Shine J (1997). "Intron 17 of the human retinoblastoma susceptibility gene encodes an actively transcribed G protein-coupled receptor gene". Genome Res. 6 (9): 858–61. doi:10.1101/gr.6.9.858. PMID8889552.
Li Q, Schachter JB, Harden TK, Nicholas RA (1997). "The 6H1 orphan receptor, claimed to be the p2y5 receptor, does not mediate nucleotide-promoted second messenger responses". Biochem. Biophys. Res. Commun. 236 (2): 455–60. doi:10.1006/bbrc.1997.6984. PMID9240460.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1-2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.