Peptides Codex
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Metabolic & GLP-1 peptides

Incretins and metabolic peptides — GLP-1, semaglutide, tirzepatide, and related science.

In this cluster

41 peptide profiles

GLP-1

31 aa
Incretin

GLP-1 (glucagon-like peptide-1) is an incretin hormone that stimulates insulin secretion and influences appetite. Engineered analogs dominat

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Semaglutide

31 aa
Incretin analog

Semaglutide is a modified GLP-1 receptor agonist peptide designed for extended half-life. It is an approved prescription medicine in many ju

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MOTS-c

16 aa
Research peptide

MOTS-c is a 16-amino-acid mitochondrial-derived peptide studied in metabolic stress and exercise-related experimental models.

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Exendin-4

39 aa
Incretin mimetic

Exendin-4 is a 39-residue peptide from Gila monster venom that activates the GLP-1 receptor and inspired the drug exenatide.

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Tirzepatide

39 aa
Incretin dual agonist

Tirzepatide is an engineered dual glucose-dependent insulinotropic polypeptide (GIP) and GLP-1 receptor agonist peptide. It is an approved p

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Retatrutide

39 aa
Incretin triple agonist

Retatrutide is an investigational triple agonist peptide targeting GLP-1, GIP, and glucagon receptors. It is widely discussed in metabolic r

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AOD-9604

16 aa
Research peptide

AOD-9604 is a synthetic peptide related to the C-terminal region of human growth hormone, studied in metabolic and lipolysis-related researc

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Cagrilintide

37 aa
Amylin analog

Cagrilintide is a long-acting amylin analog peptide investigated for metabolic disease, often discussed alongside GLP-1 and dual/triple agon

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Survodutide

Dual GLP-1 / glucagon receptor agonist (investigational)

Survodutide (BI 456906) is an investigational dual GLP-1 and glucagon receptor agonist studied in metabolic and liver research. Unlike many

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Mazdutide

Dual GLP-1 / glucagon receptor agonist (oxyntomodulin analog)

Mazdutide (IBI362, LY3305677) is a dual GLP-1 and glucagon receptor agonist derived from oxyntomodulin. It has been studied in metabolic res

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Adipotide

Chimeric pro-apoptotic peptidomimetic (investigational)

Adipotide (Prohibitin-TP01) is an experimental chimeric peptidomimetic that pairs a homing sequence targeting adipose-tissue blood vessels w

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Liraglutide

31 aa
GLP-1 receptor agonist (acylated peptide)

Liraglutide is a modified glucagon-like peptide-1 (GLP-1) analog carrying a fatty-acid chain that extends its circulation time. It is a pres

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Dulaglutide

GLP-1 receptor agonist (Fc-fusion protein)

Dulaglutide is a GLP-1 receptor agonist in which two modified GLP-1 peptide chains are fused to a human immunoglobulin (IgG4) Fc fragment. T

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Setmelanotide

8 aa
Melanocortin-4 receptor (MC4R) agonist peptide

Setmelanotide is a synthetic cyclic octapeptide that selectively activates the melanocortin-4 receptor (MC4R), a signaling hub in the brain'

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Pramlintide

37 aa
Amylin analog

Pramlintide is a synthetic analog of the pancreatic hormone amylin, designed with proline substitutions so it stays soluble rather than aggr

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Amylin

37 aa
Hormone

Amylin, or islet amyloid polypeptide (IAPP), is a 37-residue peptide hormone co-secreted with insulin from pancreatic beta cells. It is stud

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Glucagon

29 aa
Hormone

Glucagon is a 29-amino-acid peptide hormone from pancreatic alpha cells that raises blood glucose, opposing insulin. It is the archetypal co

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Oxyntomodulin

37 aa
Gut hormone

Oxyntomodulin is a 37-amino-acid gut hormone released from intestinal L-cells after eating. Because it activates both the GLP-1 and glucagon

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GIP

42 aa
Incretin

GIP (glucose-dependent insulinotropic polypeptide) is a 42-amino-acid incretin hormone released from intestinal K-cells after meals, where i

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Secretin

27 aa
Hormone

Secretin is a 27-amino-acid hormone released from duodenal S-cells in response to stomach acid entering the small intestine. Discovered by B

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Motilin

22 aa
Gut hormone

Motilin is a 22-amino-acid gut hormone secreted by endocrine cells of the small intestine. It coordinates the migrating motor complex, the w

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Peptide YY

36 aa
Gut hormone

Peptide YY (PYY) is a 36-amino-acid gut hormone released from intestinal L-cells after eating, where it contributes to satiety and slows gas

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Obestatin

23 aa
Gut hormone

Obestatin is a 23-amino-acid peptide cleaved from the same preproghrelin precursor that produces ghrelin. It was originally proposed to oppo

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Nesfatin-1

82 aa
Neuropeptide / metabolic peptide

Nesfatin-1 is a peptide cleaved from the precursor protein nucleobindin-2 (NUCB2), produced in the hypothalamus and in peripheral tissues. I

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Cholecystokinin

Gut & brain peptide

Cholecystokinin (CCK) is a peptide hormone and neurotransmitter released from intestinal I-cells and also produced widely in the brain. It t

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Gastrin

Gut hormone

Gastrin is a peptide hormone released by G-cells of the gastric antrum that stimulates acid secretion from the stomach's parietal cells. Cir

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Lixisenatide

44 aa
Incretin mimetic (GLP-1 receptor agonist)

Lixisenatide is a synthetic GLP-1 receptor agonist built on the exendin-4 scaffold rather than on human GLP-1. Marketed as Lyxumia and Adlyx

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Albiglutide

Incretin mimetic (GLP-1 receptor agonist)

Albiglutide is a GLP-1 receptor agonist created by genetically fusing two modified GLP-1 sequences to human serum albumin, giving it a long

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Efpeglenatide

Incretin mimetic (GLP-1 receptor agonist)

Efpeglenatide is a long-acting GLP-1 receptor agonist built from an exendin-based peptide conjugated to an antibody Fc fragment for extended

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Teduglutide

33 aa
GLP-2 analog

Teduglutide is a synthetic 33-amino-acid analog of glucagon-like peptide-2 (GLP-2). A single alanine-to-glycine substitution extends its hal

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Linaclotide

14 aa
Guanylate cyclase-C agonist

Linaclotide is a synthetic 14-amino-acid peptide that activates guanylate cyclase-C on the intestinal lining, raising cyclic GMP and driving

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Plecanatide

16 aa
Guanylate cyclase-C agonist

Plecanatide is a synthetic 16-amino-acid analog of the human peptide uroguanylin that activates intestinal guanylate cyclase-C. Increased cy

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Apelin

Peptide hormone

Apelin is an endogenous peptide hormone processed from a 77-amino-acid precursor into active fragments such as apelin-13 and apelin-36. It i

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Adropin

76 aa
Peptide hormone (hepatokine)

Adropin is a secreted peptide encoded by the energy homeostasis-associated gene (ENHO) and first described in 2008. Its 76-residue sequence

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Spexin

14 aa
Neuropeptide / peptide hormone

Spexin (neuropeptide Q) is a 14-amino-acid endogenous peptide discovered by bioinformatic analysis in 2007. It signals through galanin recep

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Glucagon-like peptide-2

33 aa
Peptide hormone (proglucagon-derived)

Glucagon-like peptide-2 (GLP-2) is a 33-amino-acid gut hormone produced from proglucagon in intestinal L cells and co-released with GLP-1. A

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Uroguanylin

16 aa
Signaling peptide (guanylin family)

Uroguanylin is a 16-amino-acid peptide secreted by enterochromaffin cells of the duodenum and encoded by GUCA2B. As an endogenous guanylate

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Cotadutide

30 aa
GLP-1 / glucagon receptor dual agonist (peptide)

Cotadutide (MEDI0382) is a synthetic peptide engineered as a balanced dual agonist of the GLP-1 and glucagon receptors. It is an investigati

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Pemvidutide

GLP-1 / glucagon receptor dual agonist (peptide)

Pemvidutide (ALT-801) is an investigational dual GLP-1/glucagon receptor agonist developed by Altimmune and studied in clinical trials for o

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Efinopegdutide

GLP-1 / glucagon receptor dual agonist (peptide conjugate)

Efinopegdutide (MK-6024) is an investigational dual GLP-1/glucagon receptor co-agonist studied by Merck, more recently focused on non-alcoho

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Beinaglutide

30 aa
GLP-1 receptor agonist (recombinant human GLP-1)

Beinaglutide is a recombinant human GLP-1(7-36) that shares 100% sequence identity with native human GLP-1. Approved in China for type 2 dia

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