Sauvagine is a neuropeptide from the corticotropin-releasing factor (CRF) family of peptides and is orthologous to the mammalian hormone, urocortin 1, and the teleost fish hormone, urotensin 1.[1] It is 40 amino acids in length,[2] and has the sequence XGPPISIDLSLELLRKMIEIEKQEKEKQQAANNRLLLDTI-NH2, with a pyrrolidone carboxylic acid modification at the N-terminal and amidation of the C-terminal isoleucine residue. It was originally isolated from the skin of the frog Phyllomedusa sauvagii. Given its relation to other CRF-related peptides, it exerts similar physiological effects as corticotropin-releasing hormone.[3][4]
^ abLovejoy DA, de Lannoy L (December 2013). "Evolution and phylogeny of the corticotropin-releasing factor (CRF) family of peptides: expansion and specialization in the vertebrates". Journal of Chemical Neuroanatomy. 54: 50–6. doi:10.1016/j.jchemneu.2013.09.006. PMID24076419. S2CID24576375.
^Montecucchi PC, Henschen A (August 1981). "Amino acid composition and sequence analysis of sauvagine, a new active peptide from the skin of Phyllomedusa sauvagei". International Journal of Peptide and Protein Research. 18 (2): 113–20. doi:10.1111/j.1399-3011.1981.tb02047.x. PMID7309372.
^Falaschi P, D'Urso R, Negri L, Rocco A, Montecucchi PC, Henschen A, Melchiorri P, Erspamer V (August 1982). "Potent in vivo and in vitro prolactin inhibiting activity of sauvagine, a frog skin peptide". Endocrinology. 111 (2): 693–5. doi:10.1210/endo-111-2-693. PMID7094889.
^Brown MR, Fisher LA, Spiess J, Rivier J, Rivier C, Vale W (July 1982). "Comparison of the biologic actions of corticotropin-releasing factor and sauvagine". Regulatory Peptides. 4 (2): 107–14. doi:10.1016/0167-0115(82)90101-X. PMID6289384. S2CID22063430.