Peptides
Sous-catégories appartenant à la catégorie "Peptides"
29634 produits trouvés pour "Peptides"
Tetanus Toxin P2 (830 - 844)
Tetanus Toxin P2 (830 - 844) is a protein that is derived from the single-chain polypeptide neurotoxin produced by Clostridium tetani. The neurotoxins produced by Clostridium tetani are among the most potent molecules known to humankind. Once in the body, the toxin binds to the basal lamina at the neuromuscular junction. From here, the toxin is transported to inhibitory interneurons in the spinal cord, where it prevents the release of neurotransmitters, which causes spastic paralysis.The P2 protein has antigenic properties that are reflective of the neurotoxin released by Clostridium tetani. Therefore, P2 is a suitable epitopes for CD4+ T cells and can be used to stimulate the release of IFNg, which is a cytokine that promotes macrophage activity and coordinates lymphocyte endothelium interactions.
Couleur et forme :PowderMasse moléculaire :1,724 g/molIFNB1 (118-132) Human
Recombinant human interferon-β (IFNB) is a therapeutic for certain stages of multiple sclerosis (MS). However, a significant portion of patients develop neutralising antibodies within 2 years and prevent clinical efficacy of the treatment, this was correlated to a specific rise in IgG. Sequencing of IFNB1 revealed a CD4+ T cell epitope residues (118-132) that contains critical T cell activation residues. The identification of this sequences can now allow it to be manipulated to hopefully provide new interferon treatments that reduces the capacity for induction of neutralising antibodies in MS patients. The IFNB1 (118-132) epitope can be used for immunological investigations such as T cell activation, antibody recognition via immunoassays and immunohistochemistry. This may provide further insights into certain haplotypes correlating to IFNB responses in MS treatment.Masse moléculaire :1,906.23 g/molH-AVIQHFQEK^-OH
Peptide H-AVIQHFQEK^-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.Ac-RLR-[AMC] Proteasome Substrate
Fluorogenic substrate peptide to assay trypsin-like activity. In its intact state this peptide is non-fluorescent, however when aminomethylcoumarin (AMC) is released upon hydrolysation, fluorescence can be detected. This peptide is therefore a useful tool for analysing trypsin-like enzyme activity.AMC is a fluorescent dye with excitation maxima at around 360 nm and emission maxima at around 450 nm. AMC can be excited with a mercury lamp and observed using a UV filter set.Masse moléculaire :642.4 g/molH-LLIVYPWTQR^-OH
Peptide H-LLIVYPWTQR^-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.H-LDELLQSQIEK^-OH
Peptide H-LDELLQSQIEK^-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.
Biotin-PEG2-Claudin-9
Biotin-PEG2-Claudin-9 is derived from the tight junction protein Claudin-9 which is encoded by the CLDN6 gene and can be found within epithelial cell to cell contacts. Structurally, the Claudin family, of which Claudin-9 is a member, are transmembrane proteins containing two extracellular loops and are involved in maintaining cell polarity and controlling paracellular ion flux.Reduction in the number of Claudins has been associated with tumour formation. This may be due to Claudin role in maintaining cell detachment and migration.Claudin-9 has been shown to be overexpressed in hepatocellular carcinoma (HCC) and has the ability to increase the metastasis of hepatocytes. It further influences the activation of the Stat3 signalling pathway through tyrosine kinase 2. Overall CLDN9 demonstrates itself to be a HCC proto-oncogene.This peptide has a covalently bonded N-terminal Biotin tag that can be used for detection and purification and contains a polyethylene glycol spacer (PEG2).Couleur et forme :PowderMasse moléculaire :2,881.5 g/molACTH (7-38) Human
Segment 7-38 of adrenocorticotropic hormone (ACTH). ACTH, also known as corticotropin, is a cleavage product from a larger precursor proopiomelanocortin (POMC). This 39 amino acid-peptide hormone is produced in the anterior pituitary gland upon stimulation by the corticotropin releasing hormone from the hypothalamus in response to stress. It stimulates the secretion of steroid hormone, specifically glucocorticoids in the adrenal cortex by acting through a cell membrane receptor (ACTH-R). In mammals, the action of ACTH is limited to those areas of the adrenal cortex in which the glucocorticoid hormones cortisol (hydrocortisone) and corticosterone are formed. ACTH has little control over the secretion of aldosterone, the other major steroid hormone from the adrenal cortex.Masse moléculaire :3,659.11 g/molH-TSESGLPSTR^-OH
Peptide H-TSESGLPSTR^-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.
Pantinin-2
Pantinin-2, like other pantinin peptides, has high activity against Gram-positive bacteria yet weak activity against Gram-negative bacteria. Pantinin-2 also displays activity against Candida tropicalis and has relatively mild haemolytic activity against human red blood cells.Couleur et forme :PowderMasse moléculaire :1,403.8 g/molH-INTVNSNTLPVLR^-OH
Peptide H-INTVNSNTLPVLR^-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.
PAR-1 Antagonist
YFLLRNP works as a partial PAR-1 agonist that induces platelet shape change without calcium mobilization via the galpha12/13 signalling cascade. Full activation of platelets is only achieved at higher concentrations. YFLLRNP may therefore be useful for differentiating between several possible activation states of the platelet thrombin receptor. YFLLRNP is an antagonist to thrombin.Protease activated receptors (PARs) are a distinctive four-member family of seven transmembrane G protein-coupled receptors (GPCRs) widely expressed in inflammatory cells. PARs are cleaved by certain serine proteases to expose a tethered ligand domain, this ligand domain then binds to and activates the receptors to initiate multiple signalling cascades.Couleur et forme :PowderMasse moléculaire :921.5 g/molH-F^R^-OH
Peptide H-F^R^-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.Peripheral Myelin Protein P0 (180-199)
Myelin protein zero (MPZ- also termed P0), together with myelin basic protein (MBP- previously termed P1), mediates adhesion between adjacent extracellular membrane surfaces in order to compact the myelin membranes. Myelin protein zero (P0) is the most abundant myelin protein in the peripheral nervous system (PNS), where it is believed to be adhesive on both sides of the membrane through its extracellular and intracellular domains. The extracellular domain of P0 comprises a single Ig domain, whereas the cytoplasmic end is highly positively charged and not predicted to fold into a globular domain.Masse moléculaire :2,288.2 g/molDefensin HNP-3 (human)
CAS :Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolFormule :C151H222N44O40S6Masse moléculaire :3,486.09 g/molH-TF^GSG^E-OH
Peptide H-TF^GSG^E-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.C-terminal Sortagging-[Cys(Sulfocyanine3)]
This C-terminal Sortagging peptide acts as a (oligo)glycine nucleophile in the final steps of a sortagging protein labelling reaction. This reaction results in the fluorescent moiety being attached to the C-terminus of the target protein or peptide.A substrate peptide containing the LPXTG motif is recognised and cleaved by the enzyme Sortase A (SrtA) from Staphylococcus aureus. The catalytic cysteine residue in the active site of SrtA, serves as a nucleophile to cleave the peptide bond between threonine and glycine of the substrate peptide. Cleavage results in the formation of a thioacyl intermediate between the substrate peptide and SrtA. This intermediate is then resolved by the N-terminus of this (oligo)glycine nucleophile peptide, resulting in the creation of a new peptide bond that links the substrate peptide to this peptide and its fluorescent dye. This method of protein labelling is known as sortagging.This peptide contains Sulfocyanine3, which is a fluorescent yellow dye.Couleur et forme :PowderMasse moléculaire :1,029.3 g/molDystrophin (50-61)
Forms of inherited muscular dystrophy such as Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD) result from mutations targeting the dystrophin gene. These disorders are X-linked, progressive, and cause the gradual weakening of the muscles leading to respiratory failure and ultimately reduces the patient lifespan.In DMD, mutations lead to the production of premature stop codons and hence the truncated dystrophin protein product is vulnerable to nonsense mediated decay and degradation. Therefore, dystrophin production in muscle cells is reduced. On the other hand, nonsense mutations which also contribute to DMD, cause exon skipping in BMD and result in an internally truncated protein product which are partially functional. The symptoms of BMD are later onset compared with DMD which develop in patients between 2 to 7 years.Treatments of dystrophin disorders are in clinical trials including antisense oligonucleotide exon skipping and gene therapy. However, the efficacies of these treatments are not easily quantified. Currently levels of muscular dystrophin are quantified by western blot which can be unreliable. The peptide provided here, aligning residues dystrophin (50-61), has been used to try and create a quantifiable method that is reproducible. The method used was not successful, but dystrophin (50-61) remains a useful tool to create a potential quantification method for diagnosis and progress of dystrophin disorders as it was effectively detected by mass spectrometry and Western blot. Within our catalogue we also have other peptides tested for dystrophin quantification available plus the full-length dystrophin protein.
Insulin B (9-23)
This insulin B-chain peptide binds to a class II histocompatibility complex (MHC) allele called I-Ag7. A number of autoimmune diseases has been linked to class II proteins encoded by the MHC. Type 1 diabetes, or insulin-dependent diabetes mellitus, is a T cell-mediated disease that results in autoimmune destruction of pancreatic ß cells leading to hyperglycemia. This insulin β peptide may be a self-antigen candidate that could initiate the disease. Immunisation with this peptide in mice led to autoantibodies and insulitis. In the non-obese diabetic (NOD) mouse model, this peptide represents the dominant insulin peptide driving disease initiation.Insulin is a polypeptide composed of two peptide chains referred to as the alpha chain and β chain. Insulin is normally secreted rapidly from the β-cells of the pancreatic islets in response to nutrients absorbed after a meal. In type 1 diabetes mellitus, there may be an absolute insulin deficiency as a consequence of autoimmune destruction of the β-cells.Couleur et forme :PowderMasse moléculaire :1,644.8 g/molSARS-CoV-2 Spike (991-1000)
The SARS-CoV-2 spike protein is present on the outside of the virus particles and can bind to angiotensin-converting enzyme II (ACE2) present on the host cells. The C-terminal receptor binding domain (RBD) of the spike protein binds to the N-terminal peptidase M2 domain of ACE2. This receptor binding results in the internalisation of the virus-receptor complex and is, therefore the mechanism of entry of SARS-CoV-2 into host cells.The spike protein residues VQIDRLITGR (991-1000) from SARS-CoV-2 have been identified as a T-cell epitope with a predicted HLA restriction. Immune targeting of confirmed epitopes may potentially offer protection against SARS-CoV-2 and help the development of vaccines for long-lasting immunity.
Masse moléculaire :1,170 g/molH-PQNLLLDPDTAVLK^-OH
Peptide H-PQNLLLDPDTAVLK^-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.
H-FALPQYLK^-OH
Peptide H-FALPQYLK^-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.
Formule :C49H74N10O11Masse moléculaire :979.18 g/molH-SIIVFEKL-OH
Peptide H-SIIVFEKL-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.Histone H3 (22-30) K27Me3
The Histone H3 (22-30)-K27Me3 is derived from Histone 3 (H3) which is one of the four core histones (H2A, H2B, H3 and H4) fundamental in compacting eukaryotic DNA into the nucleosome. The nucleosome arises when 147 base pairs of DNA wrap around a H3-H4 tetramer and two H2A-H2B dimers, forming the histone octamer core. Both H4 and H3 are highly conserved and perform roles in binding to segments of DNA which enter and leave the nucleosome and in chromatin formation. Similar to the other core histone, H3 has a globular domain and a flexible N-terminal domain, 'histone tail' which can undergo modifications such as acetylation, methylation, phosphorylation and ubiquitination. Due to histones containing a large number of lysine and arginine residues they have a positive net charge which interacts in an electrostatic manner with the negatively charged phosphate groups in DNA. The transcriptional activation or silencing of the chromatin is controlled by ATP-dependent chromatin remodelling factors and histone modifying enzymes which target histone proteins. Both processes function to alter to change the positioning of the nucleosome, allowing the DNA it to be either available to the transcription machinery or inaccessible.The Histone H3 (20-36) lysine 27 has been trimethylated which is usually a marker of repressive chromatin. H3K27 trimethylation also prevents H3 from interacting with SET1-like complexes, thus inhibiting the trimethylation of H3K4.
Couleur et forme :PowderMasse moléculaire :1,012.6 g/molHistone H3 (1-21) K4Me2
Histone H3 (1-21) K4Me2 is derived from Histone 3 (H3) which is one of the four core histones (H2A, H2B, H3 and H4) fundamental in compacting eukaryotic DNA into the nucleosome. The nucleosome arises when 147 base pairs of DNA wrap around a H3-H4 tetramer and two H2A-H2B dimers, forming the histone octamer core. Both H4 and H3 are highly conserved and perform roles in binding to segments of DNA which enter and leave the nucleosome and in chromatin formation. Similar to the other core histone, H3 has a globular domain and a flexible N-terminal domain, 'histone tail' which can undergo modifications such as acetylation, methylation, phosphorylation and ubiquitination. Due to histones containing a large number of lysine and arginine residues they have a positive net charge which interacts in an electrostatic manner with the negatively charged phosphate groups in DNA. The transcriptional activation or silencing of the chromatin is controlled by ATP-dependent chromatin remodelling factors and histone modifying enzymes which target histone proteins. Both processes function to alter to change the positioning of the nucleosome, allowing the DNA it to be either available to the transcription machinery or inaccessible.The Histone H3 (1-21) lysine 4 has been dimethylated.Masse moléculaire :2,281.3 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/molH-QTALVELVK^-OH
Peptide H-QTALVELVK^-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.
Thyroglobulin (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/molH-GTVGGYFL^AGR^-OH
Peptide H-GTVGGYFL^AGR^-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.Gag (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/molH-A^QCY-OH
Peptide H-A^QCY-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.HIV-1 env Protein gp120 (278-292) (strains BH10, BH8, HXB2, HXB3, PV22)
CAS :Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolFormule :C73H126N26O18Masse moléculaire :1,656 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/molMyelin proteolipid peptide
PLP(178-191) corresponds to amino acids 178 to 191 of the mouse ProteoLipid Protein (PLP).Masse moléculaire :1,582.7 g/molHXB2 gag NO-87
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool
Masse moléculaire :1,502.8 g/molH-LVVVGAVGVGK^-OH
Peptide H-LVVVGAVGVGK^-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.SIVmac239 - 81
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool
Masse moléculaire :1,655 g/molFLAG tag (Cy3B)
FLAG tag with a GGC linker (Cy3B)Couleur et forme :PowderMasse moléculaire :1,911.7 g/mol[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-TLLLQIAK^-OH
Peptide H-TLLLQIAK^-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.H-SYELPDGQVITIGNER^-OH
Peptide H-SYELPDGQVITIGNER^-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/molTemporin 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/mol5-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/molH-GTGYIK^-OH
Peptide H-GTGYIK^-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.
C-terminal Sortagging-[Cys(AF680)] amide
This C-terminal Sortagging peptide acts as an (oligo)glycine nucleophile in the final steps of a sortagging protein labelling reaction. This reaction results in the [Cys(AF680)]- fluorescent moiety being attached to the C-terminus of the target protein or peptide.A substrate peptide containing the LPXTG motif is recognised and cleaved by the enzyme Sortase A (SrtA) from Staphylococcus aureus. The catalytic cysteine residue in the active site of SrtA serves as a nucleophile to cleave the peptide bond between threonine and glycine of the substrate peptide. Cleavage results in the formation of a thioacyl intermediate between the substrate peptide and SrtA. This intermediate is then resolved by the N-terminus of this (oligo)glycine nucleophile peptide, resulting in the creation of a new peptide bond that links the substrate peptide to this peptide and its fluorescent dye. This method of protein labelling is known as sortagging.C-Terminal Sortagging-[Cys(AF680)] peptide contains the AF680 fluorescent dye- AF680 is a bright green dye with excitation at 633 nm, well suited for flow cytometry and imagery. AF680 is particularly photostable, allowing better detection of low abundance conjugates. C-Terminal Sortagging-[Cys(AF680)] amide is provided here. However, the acid version is also available in our catalogue.Masse moléculaire :1,240.3 g/molH-NIL^EVEFQGVYALK-OH
Peptide H-NIL^EVEFQGVYALK-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.
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