title: 13C nuclear magnetic resonance studies of the conformation of the X-pro bond in the oligopeptide hormones, thyrotropin-releasing hormone, luteinizing hormone-releasing factor, angiotensin and melanocyte-stimulating hormone release-inhibiting factor.
mesh_terms: D000804:Angiotensin II; D002247:Carbon Isotopes; D003903:Deuterium; D007987:Gonadotropin-Releasing Hormone; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D009074:Melanocyte-Stimulating Hormones; D010906:Pituitary Hormone-Releasing Hormones / Q000037:antagonists & inhibitors*; D011392:Proline; D011487:Protein Conformation; D013973:Thyrotropin-Releasing Hormone
chemical_list: D002247:Carbon Isotopes; D010906:Pituitary Hormone-Releasing Hormones; D000804:Angiotensin II; D007987:Gonadotropin-Releasing Hormone; D013973:Thyrotropin-Releasing Hormone; D009074:Melanocyte-Stimulating Hormones; D011392:Proline; D003903:Deuterium