Peptide Database

FGF-21

FGF-21 is a 181-amino-acid endocrine fibroblast growth factor secreted by the liver under fasting conditions. It promotes fatty acid oxidation, ketogenesis, insulin sensitization, and thermogenesis in brown adipose tissue. Animal studies show it extends lifespan and reverses metabolic syndrome. Long-acting FGF-21 analogs and fusion proteins (efruxifermin, pegbelfermin) are in Phase 2–3 trials for NASH, type 2 diabetes, and dyslipidemia.

Glucagon-like Peptide-1 · GLP-1(7-37)

GLP-1 is an endogenous incretin hormone secreted by intestinal L-cells in response to nutrient ingestion. It enhances glucose-dependent insulin secretion, suppresses glucagon, slows gastric emptying, and signals satiety to the hypothalamus. Native GLP-1 has a half-life of only 1–2 minutes due to DPP-4 degradation, which drove the development of DPP-4-resistant analogs (semaglutide, liraglutide, exenatide) that are now major drug classes.

NT · NTS

Neurotensin is a 13-amino-acid neuropeptide found in the brain and GI tract. Centrally, it modulates dopamine circuits, acts as an endogenous antipsychotic-like agent, and is analgesic. Peripherally, it inhibits gastric acid secretion, stimulates pancreatic secretion, and promotes fat absorption. Research explores neurotensin analogs for pain, schizophrenia, Parkinson's disease, and metabolic regulation.

Symlin · synthetic amylin

Pramlintide is a synthetic analog of amylin, a peptide co-secreted with insulin from pancreatic β-cells. Approved as adjunct therapy to insulin in type 1 and type 2 diabetes, it slows gastric emptying, suppresses postprandial glucagon, and promotes satiety. It is the only amylinomimetic approved for clinical use and is studied for its complementary role to insulin in postprandial glucose control.

Egrifta · TH9507

Tesamorelin is a stabilized synthetic GHRH analog FDA-approved for reduction of excess abdominal fat in HIV-infected adults with lipodystrophy. It stimulates pulsatile GH secretion while preserving natural feedback regulation. Research demonstrates significant visceral adipose tissue reduction, improved lipid profiles, and cognitive benefits, making it a key study compound for metabolic dysfunction.

Alpha-Melanocyte-Stimulating Hormone · α-Melanotropin

α-MSH is an endogenous 13-amino-acid peptide derived from POMC (pro-opiomelanocortin). It activates MC1R to stimulate melanin production in skin, MC4R to suppress appetite and regulate energy expenditure, and MC3R/MC1R to exert potent anti-inflammatory effects. It is the parent compound from which many synthetic melanocortin analogs (Melanotan I, II, PT-141, KPV) were derived and remains a cornerstone of melanocortin pharmacology research.