The molecular interaction of PTH2 with the PTH2R has been characterized in full 3D molecular detail, identifying among other residues, Tyr-318 in transmembrane helix 5 as a key residue for high affinity binding
Expression of PTH2 has been linked to social interaction in both zebrafish and rats. In these species, mutations of PTH2 or PTH2R lead to abnormal social behavior.
↑Gellén B, Zelena D, Usdin TB, Dobolyi A (2017). "The parathyroid hormone 2 receptor participates in physiological and behavioral alterations of mother mice". Physiology and Behavior. 181: 51–58. doi:10.1016/j.physbeh.2017.09.005. PMID28890271. S2CID40314841.
Further reading
Usdin TB, Hoare SR, Wang T, etal. (1999). "TIP39: a new neuropeptide and PTH2-receptor agonist from hypothalamus". Nat. Neurosci. 2 (11): 941–3. doi:10.1038/14724. PMID10526330. S2CID22744817.
Della Penna K, Kinose F, Sun H, etal. (2003). "Tuberoinfundibular peptide of 39 residues (TIP39): molecular structure and activity for parathyroid hormone 2 receptor". Neuropharmacology. 44 (1): 141–53. doi:10.1016/S0028-3908(02)00335-0. PMID12559132. S2CID9974844.
Misiano P, Scott BB, Scheideler MA, Garnier M (2004). "PTH2 receptor-mediated inhibitory effect of parathyroid hormone and TIP39 on cell proliferation". Eur. J. Pharmacol. 468 (3): 159–66. doi:10.1016/S0014-2999(03)01673-X. PMID12754053.