Péptidos

Cysteine peptide (Ac RFAAKAA COOH) is used in combination with Lysinepeptide (Ac RFAACAA COOH) in the Direct Peptide Reactivity Assay (DPRA) test.
Direct Peptide Reactivity Assay is used in cosmetic applications for the characterization of the skin sensitizing potential of a substance, framed by OECD Guideline no 442.
The molecular initiating event (MIE) in skin sensitization is a binding between epidermal proteins and the sensitizing chemical substance. MIE is part of the adverse outcome pathway (AOP) of skin sensitization.
It is thanks to the properties of Lysine peptide and Cysteine peptide that the chemical binding will be able to take place, so these synthetic heptapeptides will mimic the reaction of a skin exposed to a substance.
Binding between nucleophilic proteins and electrophile substance will be measured by High Performance Liquid Chromatography (HPLC). Therefore, the decrease in Lysine peptide and Cysteine peptide levels will be a sign of sensitizing event. Depending on the rate of depletion, the sensitizing character of a molecule will be determined (see table at the bottom of the page).
In chemico DPRA test also has wider applications such as hazard classification in cosmetics, but also for pharmaceuticals and biocides. It is a good alternative to animal experimentation.

A synthetic peptide for use as a blocking control in assays to test for specificity of UBQLN3 antibody, catalog no. 70R-2645

A synthetic peptide for use as a blocking control in assays to test for specificity of ZNF708 antibody, catalog no. 70R-8963

A synthetic peptide for use as a blocking control in assays to test for specificity of CDK5 antibody, catalog no. 20R-1201

A synthetic peptide for use as a blocking control in assays to test for specificity of Vamp1 antibody, catalog no. 70R-9793

1-Deoxyfructosyl-Val-His (1DFVH) is a research tool that belongs to the group of activators. It has been shown to activate receptors and ion channels, as well as inhibit antibody production. 1DFVH also has an effect on cell biology, which may be due to its ability to interact with proteins in a variety of ways. 1DFVH binds to the receptor by competitive inhibition and activates the receptor by mimicking the natural ligand. This compound has been shown to activate ion channels in cells through the opening of potassium channels, leading to depolarization and increased calcium influx into cells.

A synthetic peptide for use as a blocking control in assays to test for specificity of DENND2C antibody, catalog no. 70R-3785

A synthetic peptide for use as a blocking control in assays to test for specificity of C1orf166 antibody, catalog no. 70R-5998

CD2, human, recombinant is a research peptide that is commonly used in scientific studies. It is a protein that is produced using Escherichia Coli bacteria. CD2 plays an important role in immune responses and cell signaling. This recombinant form of CD2 allows researchers to study its function and interactions with other molecules in a controlled laboratory setting. It can be used in various experiments and assays to investigate the mechanisms of immune system regulation and develop potential therapeutic interventions. With its high purity and quality, CD2, human, recombinant is a valuable tool for researchers in the field of immunology and molecular biology.

Beta-Casomorphin-7 is a research tool that is used in the study of cell biology and pharmacology. It is an activator of the opioid receptor and a ligand for the receptor. The Beta-Casomorphin-7 (Bovine) antibody can be used to identify receptors on cells involved in protein interactions, ion channels, and high purity. It's CAS number is 72122-62-4.

A synthetic peptide for use as a blocking control in assays to test for specificity of CEACAM7 antibody, catalog no. 70R-9988

A synthetic peptide for use as a blocking control in assays to test for specificity of CPSF1 antibody, catalog no. 70R-4864

A synthetic peptide for use as a blocking control in assays to test for specificity of KCNA7 antibody, catalog no. 70R-5117

A synthetic peptide for use as a blocking control in assays to test for specificity of SORD antibody, catalog no. 70R-10245

A synthetic peptide for use as a blocking control in assays to test for specificity of TST antibody, catalog no. 70R-2439

Azido-dPEG®3-Amine is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. Azido-dPEG®3-Amine is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

A synthetic peptide for use as a blocking control in assays to test for specificity of MGC50722 antibody, catalog no. 70R-4281

Antipain is a proteolytic enzyme that hydrolyzes peptide bonds in proteins. It is a member of the papain family of proteases and has been shown to activate peptides and inhibit ion channels, both of which are important for cell biology research. Antipain, an inhibitor of protein synthesis, is also used as a research tool in cell biology and biochemistry.

AMY1A is a tryptic peptide derived from the alpha-amylase 1 from the salivary gland of the fruit fly, Drosophila melanogaster. Alpha-amylase 1 is a member of the amylase family and has been shown to be biologically active in vitro. AMY1A is used as a calibrator for mass spectrometry and proteomics applications. It is also used in conjunction with other peptides to identify proteins in proteomic experiments.

A synthetic peptide for use as a blocking control in assays to test for specificity of FAM120C antibody, catalog no. 70R-10170

A synthetic peptide for use as a blocking control in assays to test for specificity of SPTAN1 antibody, catalog no. 70R-2207

Beta-Sheet Breaker Peptide iAß5 is a peptide that interacts with amyloid beta proteins to disrupt the formation of beta sheets. It has been shown to inhibit the aggregation of amyloid beta proteins into oligomers and fibrils, and disrupts the self-assembly of amyloid beta protein into various conformations. Beta-Sheet Breaker Peptide iAß5 is a ligand for both receptor and activator binding sites on amyloid beta proteins, inhibiting the interaction of these sites. This inhibits the activation of downstream signalling pathways associated with Alzheimer's disease.

A synthetic peptide for use as a blocking control in assays to test for specificity of KHDRBS1 antibody, catalog no. 70R-5674

A synthetic peptide for use as a blocking control in assays to test for specificity of ZCCHC7 antibody, catalog no. 70R-10103

Light chain of the bevacizumab monoclonal antibody, sold as the antitumour therapeutic Avastin. It prevents vascular endothelial growth factor (VEGF) from binding to VEGF receptors 1 and 2 thus inhibiting angiogenesis in tumours.

A synthetic peptide for use as a blocking control in assays to test for specificity of CSF1 antibody, catalog no. 70R-6442

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Extraordinary strength of the streptavidin-biotin interaction allows for efficient capturing of even highly dilute targets; however, it makes recovery of proteins from affinity resins challenging. Conventional methods to elute biotinylated proteins from immobilized avidin include the following: (i) denaturation of streptavidin by boiling the resin in a denaturing buffer that may include high concentrations of chaotropic salts, (ii) trypsin digestion of proteins while they are bound to the resin, or (iii) elution of proteins with excess free biotin. These protocols can co-elute contaminant proteins by releasing nonspecifically bound proteins and/or naturally biotinylated proteins concurrently with labeled proteins. In addition, some of these methods can cause elution of high levels of resin-based peptides along with the proteins of interest, resulting in further sample contamination.
Disulfide Biotin Azide probe eliminates a major limitation of the streptavidin-biotin affinity purification. This reagent contains a biotin moiety linked to an azide moiety through a spacer arm containing a cleavable disulfide linker. Captured biomolecules can be efficiently released under mild conditions (50 mM dithiothreitol, 10 mM 2-mercaptoethanol or 1% sodium borohydride) and the small molecular fragment (188.25 Da) left on the labeled protein following cleavage. These features make the cleavable probe especially attractive for use in biomolecular labeling and proteomic studies.

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Please enquire for more information about Fluorescein-6-carbonyl-Leu-Glu(OMe)-His-DL-Asp(OMe)-fluoromethylketone including the price, delivery time and more detailed product information at the technical inquiry form on this page

CJC-1295 is a synthetic peptide, which is an analogue of growth hormone-releasing hormone (GHRH). It is synthesized through recombinant DNA technology, which allows for precise control over its sequence and length. This particular peptide is designed to bind to GHRH receptors in the pituitary gland. By activating these receptors, CJC-1295 stimulates the release of growth hormone (GH) into the bloodstream.The primary function of CJC-1295 is to influence the endocrine system, particularly enhancing the release of endogenous growth hormone. It achieves this by increasing the amplitude and frequency of GH pulses without affecting the natural negative feedback mechanisms that regulate GH production. This mode of action distinguishes CJC-1295 from other growth hormone therapies, as it promotes a more physiological pattern of hormone secretion.CJC-1295 is used in various scientific contexts, primarily in research focusing on growth hormone deficiencies, muscle wasting conditions, and certain metabolic disorders. Its ability to increase GH release also makes it a subject of interest in studies related to aging, tissue repair, and regeneration. The longer half-life of CJC-1295 compared to natural GHRH peptides further enhances its applications in research, allowing for more sustained and controlled experimentation.

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Myelin oligodendrocyte glycoprotein (MOG) is a myelin protein found in the central nervous system. MOG is a ligand for CD200, which is an inhibitory receptor expressed by astrocytes. It has been shown that MOG can induce the proliferation and differentiation of primary cultures of rat astrocytes in vitro. MOG induces the production of reactive oxygen species in mitochondria and increases the expression of acid-binding protein, which are both important factors in the demyelination process. MOG has also been implicated as a potential factor in the development of multiple sclerosis. Further research into this protein may lead to new treatments or cures for disorders such as encephalomyelitis, nervous system diseases, or even cancer.

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

H-His-Arg-OH is a synthetic peptide that has been shown to have cytotoxic effects on mammalian cells. The H-His-Arg-OH peptide can be used for the treatment of heart disease and autoimmune diseases, such as rheumatoid arthritis. This peptide has been found to be resistant to congestive heart failure, which is caused by a number of factors, including hypertension and valvular stenosis. It has also been shown to have an immunoglobulin G1 (IgG1) genotype.

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity

Catalogue peptide; min. 95% purity