Peptides
Les peptides sont des chaînes courtes d'acides aminés liées par des liaisons peptidiques, jouant un rôle essentiel en tant que molécules biologiques dans divers processus cellulaires. Ils fonctionnent comme hormones, neurotransmetteurs et molécules de signalisation, et sont largement utilisés dans les applications thérapeutiques et diagnostiques. Les peptides sont également cruciaux dans la recherche pour étudier les interactions protéiques, les activités enzymatiques et les voies de signalisation cellulaire. Chez CymitQuimica, nous proposons une large sélection de peptides de haute qualité pour soutenir vos besoins en recherche et développement en biotechnologie et en pharmacie.
Sous-catégories appartenant à la catégorie "Peptides"
29608 produits trouvés pour "Peptides"
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proFIX18
Peptide proFIX18 is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.Formule :C95H157N31O27Masse moléculaire :2,165.5 g/molSARS-CoV-2 NSP13 (551-565)
The SARS-CoV-2 non-structural protein 13 (NSP13) has been identified as a target for anti-viral therapeutics due to its highly conserved sequence and is essential for viral replication. NSP13 is part of the helicase superfamily 1B. As an NTPase and RNA helicase, NSP13 binds to RNA-dependent RNA polymerase and acts in concert with the replication-transcription complex to stimulate backtracking and further activate NSP13 helicase activity. These factors make NSP13 a good target for developing new antiviral drugs. In addition, the identification of epitopes within the NSP13 sequence can help design more effective SARS-CoV-2 vaccines.Models have predicted epitopes exhibiting antigenicity, stability and interactions with MHC class-I and class-II molecules. NSP13 (551-565) is an epitope candidate with various HLA restrictions. This epitope can be used to better vaccine design for more durable CD4+ and CD8+ T cell responses for long-lasting immunity.Masse moléculaire :1,673.8 g/molα-MSH
Alpha-melanocyte stimulating hormone (alpha-MSH) is a melanocortin family neuropeptide which plays important roles in metabolic and immune homeostasis. It is formed from the cleavage of adrenocorticotropic hormone, the cleavage product of proopiomelanocortin hormone. alpha-MSH is expressed ubiquitously to varying degrees in a wide variety of cells including the hypothalamus, monocytes and retinal pigment epithelial cells. alpha-MSH is a non-selective agonist of melanocortin receptors.alpha-MSH is a suppresser of inflammation from both innate and adaptive immune pathways, it is involved in hair and skin pigmentation (through MC1 receptor activation), has reproductive functions, cardio protective functions and regulates food intake and energy metabolism. The N-terminal of the peptide is protected by an acetyl group.Couleur et forme :PowderMasse moléculaire :1,664.8 g/molThyroglobulin (Tg-FSP)
Thyroglobulin (Tg) is a widely used biomarker of various differentiated thyroid cancer (DTC)- Tg is a substrate for thyroid hormone production. Detection and quantification of serum thyroglobulin levels remain challenging due to Tg's size, heterogeneity, and thyroglobulin autoantibodies (TgAb). Immunoassays offer the opportunity to tailor DTC treatments, but many patients are TgAb positive, excluding them from analysis during regression.Liquid chromatography-tandem mass spectrometry (LC-MS/MS) can overcome immunoassay issues by digestion of Tg to a tryptic peptide removing the interference from TgAbs. The addition of a doubly charged peptide precursor ion, FSP peptide, allows easy detection of Tg-FSP by an anti-FSP antibody that is reliable and quantifiable.Masse moléculaire :1,405.7 g/molGag (18-26) [Human immunodeficiency virus type 1] acetyl/amide
CD8+ T-cell (cytotoxic T lymphocyte (CTL)) responses are important in the control of viral replication. Inducing a sustained HIV-1 specific CD8+ T-cell response is the target for vaccine development by using conserved HIV-1 epitopes. The HIV gag gene encodes p17 and p24. P17 Gag is a matrix protein that is vital to HIV life cycle, use of p17 Gag epitopes is a possibility for HIV therapies. P17 Gag targets viral RNA to the nucleus and Gag polyproteins to the cell membrane- p17 Gag accumulates in the extracellular space of tissue while interacting with receptors on various cell types to deregulate cell function.CTL recognition epitope of p17 Gag is identified as residues 77-85 to activate the immune response. Within Gag p17 is the conserved/persistently recognised epitope KIRLRPGGK (amino acids 18-26). This sequence has been used as an effective epitope in immunological assays to assess CTL response work has also shown patients targeting conserved or variable Gag epitopes including Gag p17 (18-26) effects the strength of CD8+ T-cell response and disease progression.Masse moléculaire :1,064.7 g/molTet-20
Tet-20, is a synthetic cathelicidin-derived peptide. It was tested as infection-resistant coating for medical devices. When tethered on an implant surface Tet-20 exhibited broad antimicrobial activities both in vivo and in vitro. It can stop biofilm formation and appears to be non-toxic to eukaryotic cell. Tet-20 antimicrobial peptide is often sued as a control peptide and has antifouling.Masse moléculaire :1,768.1 g/molAc-RGK-[AMC]
Substrate peptide for histone deacetylase (HDAC) enzymes for use in assaying HDAC activity. Histone deacetylases (HDACs) are a family of enzymes which are highly evolutionary conserved across all eukaryotes. HDACs modify histones by removing acetyl groups from the tail regions. Histone deacetylation is generally associated with reduced gene expression due to a more compact chromatin state less accessibility for transcription factors (TFs). HDACs are essential for many physiological processes including development and cellular homeostasis. They also play an important role in disease states, including neurodegenerative disorders, genetic diseases and cancers.This peptide is the fluorogenic substrate for assaying histone deacetylase (HDAC) activity in a two-step enzymatic reaction. The assay consists of the initial lysine deacetylation by HDAC followed by the release of the fluorescent group by trypsin. Fluorescence can be detected upon fluorophore release.Masse moléculaire :558.3 g/molAc-SLGRKIQI-NH2
Peptide Ac-SLGRKIQI-NH2 is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.
Myelin proteolipid peptide
PLP(178-191) corresponds to amino acids 178 to 191 of the mouse ProteoLipid Protein (PLP).Masse moléculaire :1,582.7 g/molFLAG tag (Cy3B)
FLAG tag with a GGC linker (Cy3B)Couleur et forme :PowderMasse moléculaire :1,911.7 g/molSuc-KGFLGK-NH2
Peptide Suc-KGFLGK-NH2 is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.
[Cy3B]-LifeAct (Abp140 1-17)
[Cy3B]-LifeAct (Abp140 1-17) contains the 17amino acid peptide Lifeact derived from amino acids 1-17 of the Saccharomyces cerevisiae actin binding protein, Abp140. These first 17 amino acids of Abp140 are crucial in allowing Lifeact to localise to actin filaments (F-actin) and therefore it can be used as a cytoskeletal marker. On application, lifeact can be used in the study of plant development and pathogen defence as filamentous actin within the plant actin cytoskeleton is important in key processes such as cell division, membrane trafficking and stomatal movements.The addition of the Cy-Dye fluorophore, Cy3B allows the location of the LifeAct (Abp140 1-17) to be detected. Cy3B is described as being conformationally locked meaning it is less likely to undergo photo-isomerization and one of its main applications is within DNA related studies.Couleur et forme :PowderMasse moléculaire :2,465.2 g/molH-LSTQNVIDAEK^-OH
Peptide H-LSTQNVIDAEK^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.CMV IE-1 (213-225)
CMV pp65 (415-429) (HLA-B7) is a CEF (cytomegalovirus, Epstein-Barr virus, and influenza virus) control peptide that is derived from the Cytomegalovirus (CMV). CMV is capable of infecting a wide range of human cell types, where the body's primary immune response to CMV is innate, and relies on inflammatory cytokines and costimulatory molecules in order to control the spread of the virus. CMV pp65 (415-429) (HLA-B7) is defined as a CEF control peptide due to its antigenic properties. Clinically, these peptides are suitable epitopes for CD8+ T cells and can be used to stimulate the release of IFNg. HLA-B7 refers to the cell HLA type that this peptide acts on.Masse moléculaire :1,516.8 g/molH-ATLTVDK^-OH
Peptide H-ATLTVDK^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.
Temporin L
Temporin L is a highly potent anti-microbial peptide (AMP) active against both Gram-positive and Gram-negative bacteria. Temporins are a large family of short, linear, AMPs produced in the skin of frogs belonging to Rana species, but are also found in wasp venom. Temporin L was originally isolated from the frog Rana temporaria and has the highest anti-microbial potency among tested temporins, especially against Gram-negative bacteria.Temporin L increases bacterial inner membrane permeability in a dose-dependent manner without destroying cell integrity. At low peptide concentrations, the inner membrane becomes permeable to small molecules but this does not kill the bacteria. At high concentrations, larger molecules, but not DNA, leak out, resulting in cell death. Temporin L has a different mode of action to many AMPs as it does not lyse the cells but instead forms ghost-like bacteria shells.Couleur et forme :PowderMasse moléculaire :1,639 g/molH-ALVLIAFAQYLQQCPFEDHVK^-OH
Peptide H-ALVLIAFAQYLQQCPFEDHVK^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.5-FAM-Fz7-21
Fz7-21 is a potent and selective peptide antagonist of Frizzled 7 (FZD 7) receptor which selectively binds to FZD7 cysteine rich domain (CRD) subclass at the cysteine rich region proximal to the lipid-binding groove. Binding alters the conformation of the CRD and the architecture of its lipid-binding groove and impairs Wnt/β-catenin signalling. Peptide Fz7-21 also shows cross-species binding to both the human and mouse FZD7 CRD.The FZD7 receptor is enriched in intestinal stem cells which express the LGR5 receptor and plays a critical role in the cells self-renewal. FZD7 is essential for maintaining human embryonic stem cells in their undifferentiated state and is therefore an attractive pharmacological target for diseases associated with stem cell dysfunction and cancer biology.FZD7 is also upregulated in subsets of colon, pancreatic and gastric tumours, therefore Fz7-21 serves as a pharmacological probe to explore further the function of FZD7 in stem cell and cancer biology.Peptide is labelled with an N-terminal 5-carboxyfluorescein (5-FAM), a widely used green fluorescent tag.
Masse moléculaire :2,110.8 g/mol
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