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Home > Biochemical Engineering > Polypeptide (Find 27 items)

Polypeptide

Polypeptides are vital biomolecules with broad applications in biology and industry. It is composed of amino acids linked by polypeptide bonds. These polypeptide chains form the backbone of most proteins and are key to cellular functions, enzyme regulation, and structural support. Their efficiency makes them valuable in biotechnology, medicine, and manufacturing. Learn more about polypeptides, including CAS No., properties, and information of materials and products from our suppliers on ECHEMI.

Glucagon

(9007-92-5)
Glucagon is a hormone secreted by the pancreas that raises blood glucose levels. Glucagonis released by the pancreas when blood sugar (glucose) levels fall too low. Glucagon causes the liver to convert stored glycogen into glucose thus increasing glucose levels and having the opposite effect of insulin.

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Ganirelix Acetate

(123246-29-7)

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GRF (1-44) (HUMAN)

(83930-13-6)
Human growth hormone-releasing factor stimulates GH production and release by binding to the GHRH Receptor (GHRHR) on cells in the anterior pituitary. Sequence: Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys-Val-Leu-Gly-Gln-Leu-Ser-Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Ser-Arg-Gln-Gln-Gly-Glu-Ser-Asn-Gln-Glu-Arg-Gly-Ala-Arg-Ala-Arg-Leu-NH2.

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GLUCAGON-LIKE PEPTIDE I FRAGMENT 7-36 AMIDE HUMAN

(107444-51-9)
Glucagon-Like Peptide (GLP) I (7-36), amide, human is a physiological incretin hormone that stimulates insulin secretion

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Galanin (1-30) (human)

(119418-04-1)

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GLN-ARG-PRO-ARG-LEU-SER-HIS-LYS-GLY-PRO-MET-PRO-PHE

(217082-58-1)
The apelin gene encodes a pre-proprotein that is processed to generate bioactive peptides consisting of 36, 17, or 13 amino acids (apelin-36, apelin-17, and apelin-13, respectively). Apelin-13 is the endogenous ligand of the APJ receptor, activating this G protein-coupled receptor with an EC50 value of 0.37 nM (the EC50 values for apelin-17 and apelin-36 are 2.5 and 20 nM, respectively). It acts primarily in the periphery and central nervous system, playing important roles in regulating cardiova

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Polypeptide is a compound formed by connecting α-amino acids with peptide bonds, and is an intermediate product of protein hydrolysis. Compounds usually formed by the dehydration and condensation of 10 to 100 amino acid molecules are called peptides. There are two types of peptides: biologically active peptides and synthetic peptides.

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Application of polypeptide

With recent advancements in biotechnology, polypeptides have found increasing use as therapeutic agents. They can serve in diagnostic, curative, and preventative applications and can be synthesized artificially to meet clinical demands.

Due to their unique properties, polypeptides combine the characteristics of both small molecule drugs and protein-based therapies, making them a highly researched class of molecules. Insulin, for example, was the first polypeptide drug introduced, and since then, over 80 polypeptide-based drugs have been commercialized. These include peptide vaccines, anti-cancer peptides, antiviral peptides, cardiovascular peptides, cytokine mimetic peptides, antimicrobial peptides, and diagnostic peptides.

One of the major advantages of polypeptide drugs is their reduced likelihood of inducing drug resistance. However, they also pose significant challenges, such as higher toxicity and lower stability compared to other drug types. The immunogenicity and instability of polypeptide drugs are often attributed to chemical reactions like deamidation, oxidation, hydrolysis, and the formation of incorrect structures.

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