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Home > Biochemical Engineering > Polypeptide (Find 624 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.

Albumins, blood plasma

(68551-06-4)
The main function is to maintain the plasma colloid osmotic pressure. It can be used as a blood volume expander to increase the colloid osmotic pressure and increase blood volume. Used to prevent or rescue hemorrhagic shock, traumatic shock, severe burns, scalds, etc. It can also supplement body albumin to treat hypoproteinemia, increased cerebral pressure caused by liver cirrhosis and kidney disease, and albumin deficiency in miscarriage or premature women. Shock caused by severe burns or blood

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Palmitoyl Tripeptide-38

(1447824-23-8)

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VAPREOTIDE

(103222-11-3)
Vapreotide is a synthetic somatostatin (S676750) analog predominately used for the treatment of acute variceal bleeding.

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(R)-(-)-4-BENZYL-3-PROPIONYL-2-OXAZOLIDINONE

(131685-53-5)
Oxazolidinone derivative used in the preparation of anisomycin analogues as activators of the JNK/SAPK1 and p38/SAPK2 pathways.

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PGLU-HIS-PROAMIDEACETATESALT

(40216-95-3)
Clinically used as a diagnostic agent for pituitary function and thyroid function. It can also treat patients with hypothyroidism and thyroid cancer. It has a temporary effect on women who have insufficient milk during lactation. Adverse reactions and contraindications: Intravenous injection can cause urgency, nausea, dizziness, etc.; oral administration can cause temporary nausea. Patients with cardiac insufficiency and hypopituitarism should be used with caution; pregnant women should not use

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Tripeptide-10 citrulline

(960531-53-7)

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CRF(BOVINE)

(92307-52-3)
CRF,bovine is a potent agonist of CRF receptor, and displaces [125I-Tyr]ovine CRF with a Ki of 3.52 nM.

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Avidins

(1405-69-2)
Avidin egg white was used in an assay using functionalized xenon as a biosensor to detect biotin-avidin binding. Egg white was used at 80 nmol.

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Dynorphin A (1-13)

(72957-38-1)
Porcine dynorphin A (1-13) is a potent, endogenous κ opioid receptor agonist and is antinociceptive at physiological concentrations. Sequence: Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile-Arg-Pro-Lys-Leu-Lys.

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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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