| Bioactivity | Xenin-8 TFA, a C-terminal octapeptide, is a biologically active fragment of Xenin. Xenin is a 25-amino acid peptide of the neurotensin/xenopsin family. Xenin-8 TFA stimulates basal insulin secretion and potentiates the insulin response to glucose in a dose-dependent manner (EC50=0.16 nM)[1]. |
| Invitro | Xenin-8 TFA augments Arginine-induced insulin release (by 40%) and potentiates the glucagon responses to both Arginine (by 60%), Carbachol (by 50%). Xenin-8 TFA counteracts the inhibition of glucagon release induced by increasing the glucose concentration[1]. |
| Name | Xenin-8 TFA |
| Shortening | HPKRPWIL |
| Formula | C53H80F3N15O11 |
| Molar Mass | 1160.29 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. Ramona A Silvestre, et al. Stimulatory effect of xenin-8 on insulin and glucagon secretion in the perfused rat pancreas. Regul Pept. 2003 Aug 15;115(1):25-9. |