Peptidi
Sottocategorie di "Peptidi"
Trovati 29609 prodotti di "Peptidi"
Biotin HER-2 substrate peptide
Human epidermal growth factor receptor (HER-2)/epidermal growth factor receptor-2 (ErbB-2), is a key receptor linked to metastasis in tumours. The oncogenic ErbB-2 receptor has intrinsic receptor tyrosine kinase (RTK) activity, the receptor is activated by ligand binding which induces receptor dimerization. These RTK complexes can activate mitogen-activated protein kinase (MAPK) and phosphoinositol 3-kinase (PI3K)/Akt pathways. This peptide has been identified as a substrate for HER-2/ErbB-2 as it is phosphorylated upon receptor activation and therefore acts as a marker for receptor activation in kinases assays. Contains a covalently attached N-terminal biotin tag for convenient detection and purification.Peso molecolare:2,062.44 g/molAc-KLTWQELYQLK^YKGI-NH2
Peptide Ac-KLTWQELYQLK^YKGI-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.BAM (8-22)
BAM (8-22), the Bovine adrenal medulla 8-22 peptide is synthesised from proekephalin after it has undergone proteolytic cleavage. It can induce what is known as the 'itching' or 'scratching' response through activating, using an opioid independent mechanism, the G-protein coupled receptor MRGPRX1. This subsequently activates the Gαq/11 pathway and the cation channel TRPA1 histamine independent itch pathways.It is believed that BAM 8-22 can contribute to chronic itching in diseases such as cholestasis-related pruritus, in which patients are commonly diagnosed as having a reduction in bile flow.Peso molecolare:1,971.2 g/molKisspeptin-13 (4-13) (human)
CAS:Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolFormula:C63H83N17O14Peso molecolare:1,302.46 g/molPalmitoyl GHK tripeptide
The GHK tripeptide has many attributes which can positively impact human health. GHK can improve tissue repair, exhibit anti-cancer and anti-inflammatory properties, suppress age related molecules and restore chronic obstructive pulmonary disease fibroblasts.The GHK tripeptide is found in the human plasma and binds copper. It exerts its effects through its ability to up regulate and downregulate 4,000 human genes. Due to its ability to protect and regenerate aspects of human health, GHK-Cu can be used in products for skin and hair.Specifically during skin regeneration GHK-Cu can promote the synthesis of collagen and glycosa-minoglycans, increase the rate of wound healing and the formation of blood vessels.A palmitoyl group is present on the N-terminus.Peso molecolare:578.4 g/molβ-Amyloid (12-20)
Aβ has been identified as the key subunit of the extracellular plaques found in the brains of patients with Alzheimer's disease (AD) and Down's syndrome (DS). Aβ has therefore been extensively studied as a potential target for treatment of AD.Aβ is formed from the cleavage of the large, transmembrane protein- APP (amyloid precursor protein). Cleavage of APP by β- and then γ-secretases results in the formation of Aβ. Aβ can aggregate to produce amyloid-β oligomers, which are thought to be highly neurotoxic. Over time Aβ can further aggregate to produce the characteristic senile plaques present in AD and DS. Aβ can be degraded by enzymes such as neprilysin, insulin degrading enzyme or endothelin converting enzyme. At physiological levels Aβ may be involved in controlling synaptic activity and neuronal survival.Colore e forma:PowderPeso molecolare:1,153.6 g/molH-ATASRGASQAGAPQGC-NH2
Peptide H-ATASRGASQAGAPQGC-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.
CMX-8933
The CMX-8933 peptide is a fragment of the goldfish brain neurotrophic factor ependymin which can increases the enzymatic activity of c-Jun N-terminal kinase (JNK), increase the phosphorylation of JNK and c-Jun proteins, and increase cellular levels of c-Jun and c-Fos mRNAs.Peso molecolare:1,192.6 g/molH-GLDWIGIMSPVDSDIR^-OH
Peptide H-GLDWIGIMSPVDSDIR^-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-GPLD-[Rh110]-[D-Pro]
Fluorogenic substrate peptide to assay the caspase-like peptidic activity of the 20S proteasome. In its intact state this peptide is non-fluorescent, however when the Rhodamine fluorophore is released upon hydrolysation, fluorescence can be detected. This peptide is therefore a useful tool for analysing enzyme activity.The presence of the D-proline residue on the C terminal of the rhodamine molecule ensures one directional rhodamine cleavage which simplifies fluorescence studies. Rhodamine 110 is a laser grade fluorescent dye with excitation maxima at 496 nm and emission maxima at 522 nm.Peso molecolare:851.3 g/molAD 01
CAS:Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolFormula:C115H187N33O42Peso molecolare:2,703.94 g/molH-EIPAWVPFDPAAQITK^-OH
Peptide H-EIPAWVPFDPAAQITK^-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.
Fluor-PKYVKQNTLKLAT-OH
Peptide Fluor-PKYVKQNTLKLAT-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.GS dipeptide
Dipeptide consisting of one glycine and one serine residue with diverse uses. Primary metabolite and bronsted base, forms a complex with Cu(II) acting as a tridentate ligand.Primary metabolites are metabolically or physiologically essential and are directly involved in an organism's development, growth, or reproduction.Peso molecolare:162.1 g/molH-SLYASSPGGVYATR^-OH
Peptide H-SLYASSPGGVYATR^-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.
GRGD-[Cys(AF647)]
GRGD-acid is a cell adhesive peptide containing the RGD motif. This enables it the ability to increase cell adhesion and rates of cell growth, differentiation and proliferation.When immobilised onto a Poly(etheretherketone) (PEEK) surface it has been shown to increase cell adhesion and proliferation in MC3T3-E1 cells. GRGD could therefore be used in dental implants.This peptide contains a C-terminal Alexa Fluor 647 florescent dye. A cysteine residue has been added to the C-terminus for conjugation of the dye via the cysteine thiol moiety. AF647 is a bright, far-red-fluorescent dye with excitation between 594 nm and 633 nm, and is pH-insensitive over a wide molar range.Colore e forma:PowderPeso molecolare:1,486.2 g/molH-AQGFTEDTIVFLPQTDK^-OH
Peptide H-AQGFTEDTIVFLPQTDK^-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.α-Casozepine
CAS:Alpha-Casozepine (alpha-CZP) is a tryptic hydrolysate of bovine milk alphas1-casein. The presence of bile salts facilitates alpha-CZP absorption through a Caco2 monolayer. alpha-CZP shows similarities to benzodiazepines with its anxiolytic-like activity but lack the common side effects of habituation or sedation. alpha-CZP binds to the GABAA receptor at the benzodiazepine site. alpha-CZP binds with a significantly lower affinity than benzodiazepines.Intraperitoneal administration of Alpha-Casozepine (alpha-CZP) to rodents results in anticonvulsant and sleep-protecting effects. Human administration reduces physiological stress symptoms in stressed and control patients. alpha-CZP modulated neuronal activity in brain regions linked to anxiety regulation in mice.Formula:C60H94N14O16Peso molecolare:1,267.47 g/molD-Arg PEP
An inhibitor of E2F1 and 3a transcription, with a D substituted arginine which confers resistance to proteolysis after pre-incubation in serum. Cytotoxic to several malignant cell lines and human prostate and small cell lung cancer xenografts.H-IFLTEQP^LEGLEK^-OH
Peptide H-IFLTEQP^LEGLEK^-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 - 77
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool
Peso molecolare:1,734 g/molAc-CRVSSEPPASIRPKTDDTSS-NH2
Peptide Ac-CRVSSEPPASIRPKTDDTSS-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.
Histone H3 (1-8)
Histone H3 (1-8) 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 the positioning of the nucleosome, allowing the DNA it to be either available or inaccessible to the transcription machinery.Peso molecolare:931.05 g/molBiot-EDPDYEWPSA-NH2
Peptide Biot-EDPDYEWPSA-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.
H-CGSDALDDFDLDML-NH2
Peptide H-CGSDALDDFDLDML-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.Ac-HGEGTFTSDLSKQMEEEAVRLFIEWLKNGGPSSGAPPPS-NH2
Peptide Ac-HGEGTFTSDLSKQMEEEAVRLFIEWLKNGGPSSGAPPPS-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.VIP (6-28)
Vasoactive intestinal peptide (VIP) is a neuropeptide found throughout the body and the central nervous system (CNS). VIP is located within cell bodies and nerve endings of the enteric nervous system, brain and pancreas. VIP neurons in the peripheral system fire to regulate blood vessels, and the CNS innervate cerebral vasculature. VIP binds to G protein-coupled receptors VPAC1 and VPAC2. VIP and VPAC2 are detected in circular smooth muscle cells of cerebral arterioles. VIP and VPAC1 are also found in lymphatic tissue. VIP can block inflammation, modify the Th response favouring Th2 and induce regulatory T cells. Overexpression of each receptor has been linked to various cancers.VIP administration leads to pancreatic bicarbonate-rich fluid secretion but not to the same degree stimulated by secretin. VIP stimulates insulin secretion in a glucose-dependent manner and also stimulates glucagon secretion. Studies have found that in morbidly obese patients, VIP levels are lowered and work to slow gastric and duodenal motility but increase gastric emptying. Therefore, decreasing VIP levels in obese patients may increase weight gain by accelerating gastric emptying.VIP has been well studied in pancreatic acini. VIP is a full agonist of amylase secretion and increases cyclic AMP synchronised with an increase in intracellular Ca2+ triggered by stimuli that act through cholecystokinin (CCK) or cholinergic agonists. Most cAMP increases, and amylase secretion appear to be mediated via VPAC1.The discovery of VPAC antagonists can help to understand VIPs roles and may also provide new therapies in VIP dysregulated systems such as cancers. VIP (6-28) is a specific competitive inhibitor of the VIP receptor derived from VIP. VIP-induced vasodilatation was blocked by co-administration of the VIP receptor antagonist VIP (6-28). Using a VIP receptor antagonist has made VIP function easier to study during neuronal injury, inflammation, and heart innervation. The VIP receptor antagonist is being considered for osteoarthritis treatment, an area with no current treatments other than analgesics.
Peso molecolare:898.5 g/molH-YYGYTGAFR^-OH
Peptide H-YYGYTGAFR^-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.
LL-37 fragment (24-29)
LL-37 is a member of the large cationic family of anti-microbial peptides called cathelicidins which have broad-spectrum anti-microbial activity and are expressed in many species. The only cathelicidin found in humans is LL-37, this is produced in epithelial cells, by proteolytic cleavage from the C-terminal of the hCAP-18 protein. LL-37 can be processed into different forms of anti-microbial peptides. As well as its anti-microbial properties LL-37 also regulates many aspects of the innate immune system and overexpression of LL-37 has been linked to autoimmune diseases such as asthma and psoriasis, making LL-37 the most studied form of the human cathelicidin peptides.More recently, studies have shown that LL-37 binds to SARS-CoV-2 S protein and inhibits binding to its receptor hACE2, which may inhibit viral entry into the cell. LL-37 is upregulated by vitamin D, therefore this may be one mode of action for the positive outcomes seen with vitamin D treatment for Covid-19.
Colore e forma:PowderPeso molecolare:790.5 g/molAc-ADE-OH
Peptide Ac-ADE-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.
beta-Amyloid (1-14) Biotin
Amino acids 1-14 of β-amyloid peptide (Aβ).Aβ has been identified as the key subunit of the extracellular plaques found in the brains of patients with Alzheimer's disease (AD) and Down's syndrome (DS). Aβ has therefore been extensively studied as a potential target for treatment of AD. Aβ is formed from the cleavage of the large, transmembrane protein- APP (amyloid precursor protein). Cleavage of APP by β- and then γ-secretases results in the formation of Aβ. Aβ can aggregate to produce amyloid-β oligomers, which are thought to be highly neurotoxic. Over time Aβ can further aggregate to produce the characteristic senile plaques present in AD and DS. Aβ can be degraded by enzymes such as neprilysin, insulin degrading enzyme or endothelin converting enzyme. At physiological levels Aβ may be involved in controlling synaptic activity and neuronal survival.Contains a C-terminal biotin tag for easy detection and purification.Peso molecolare:1,965.9 g/molMyelin Basic Protein (83-99) (bovine)
CAS:Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool
Formula:C93H143N25O24Peso molecolare:1,995.31 g/molMyelin Basic Protein (MBP) (68-82), guinea pig
The 14 amino acid fragment of myelin basic protein (MBP) (68-82) can induce experimental allergic encephalomyelitis (EAE) in Lewis rats. EAE is the most used experimental model for studying the human inflammatory demyelinating diseases, such as multiple sclerosis (MS).MBP is an integral component of myelin found in the central nervous system (CNS). MBP is considered vital for the development and stability of the myelin sheath where it plays a role in membrane adhesion. MPBs constitute an extraordinarily varied collection of splice isoforms which show a myriad of post-translational modifications. MBP may be targeted by auto-antibodies in diseases such as MS. Use of MBP fragments in immunology assays are helping to answer this. The low affinity of MBP (1-9) peptide for major histocompatibility complex (MHC) class II molecules may result in MBP autoreactive T cells escaping central-tolerance, where self-reactive T cells are usually eliminated. The activity induced by MBP (68-82) suggests it can cause EAE but other EAE MBP peptides were found to induce a stronger response. The MBP (68-82) and others available in our catalogue may help to understand the nature of demyelinating diseases and find the target autoantigens of conditions such as MS.Colore e forma:PowderPeso molecolare:1,735.8 g/molPNC 27
Membrane-active peptide that binds to HDM-2 expressed in the membranes of solid tissue tumour cells to induce transmembrane pore formation in cancerous, but not normal cells, resulting in tumour cell necrosis independent of p53 activity.
Peso molecolare:4,029.2 g/molH-DLPSPIER^-OH
Peptide H-DLPSPIER^-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.
Alyteserin-1c
Alyerserin-1c is a C-terminally α-amidated 23 residue Cationic antimicrobial peptide (AMP) with a net charge of +2. Anti-microbial peptides (AMPs) are produced by the innate immune system and are expressed when the host is challenged by a pathogen. The Alyerserin family of peptides was first identified in norepinephrine-stimulated skin secretions of the midwife toad-Alytes obstetricans-(Alytidae). Alyteserin-1 peptides have limited structural similarity to the ascaphins from the skins of frogs of the Leiopelmatidae family. Alyteserin-1 peptides are selective at inhibiting growth activity of Gram-negative bacteria-such as Escherichia coli and show weak haemolytic activity against human erythrocytes.Alyteserin contain at least 50% hydrophobic amino acids. Hydrophobic residues contribute to the insertion of the peptide into the hydrophobic membrane core which results in membrane disruption and death of the pathogen. Due to their mechanism of action it is less likely for resistance to develop towards such peptides compared to conventional antibiotics.Peso molecolare:2,265.74 g/molH-FLPSDFFP^SV^-OH
Peptide H-FLPSDFFP^SV^-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.
Click TP10
TP10 is an amphipathic cell-penetrating peptide (CPP) also known as transportan 10. Its formation involves the use of a lysine residue to form a chimeric linkage between a mastoparan 21-residue peptide, a wasp venon 14-residue peptide and 6-residues derived from the neuropeptide galanin. Structurally TP10 contains only positively charged amino acids along with 4 lysines and an N-terminus. Therefore, it will produce a +5 charge under conditions of a neutral pH. It has been found that TP10 may aid molecules in penetrating through the cell membrane barrier through directly interacting with the lipid bilayer. During these interactions with the membrane TP10 will form an amphipathic α-helix. TP10 can be used in transduction methods.TP10 is provided here with a N-terminal alkyne attachment. Two of the most regularly encountered functional groups for click chemistry are azides and alkynes, and the azide-alkyne cycloaddition has become the most popular click reaction. The use of click chemistry with alkyne-TP10 allows a wide variety of applications particularly for conjugation, modification, and peptide design. Fluorescent labelling of TP10 for drug delivery has been used in vivo.
Colore e forma:PowderPeso molecolare:2,260.4 g/molHIV - 1 MN ENV - 24
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolPeso molecolare:1,919.2 g/molIRBP (1-20)
IRBP (1-20) is derived from the interphotoreceptor retinoid-binding protein (IRBP), present in the interphotoreceptor matrix and is expressed by cone and rod photoreceptors in the eye. IRBP is involved in retinoid delivery and protects retinal cells from oxidative stress.In retinitis pigmentosa patients, IRBP can be subjected to mutations resulting in a non-secreted form of IRBP to be produced. Furthermore IRBP gene mutations have been associated with high myopia and retinal dystrophy.The expression of IRBP is reduced in diabetes patients which may lead to visual cycle misfunction and the photoreceptors can be vulnerable to damage.
Peso molecolare:2,193.2 g/molH-GILIDTSR^-OH
Peptide H-GILIDTSR^-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-LPLSLPVGPR^-OH
Peptide H-LPLSLPVGPR^-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.RAGE antagonist peptide
RAGE antagonist peptide is an S100P-derived peptide based competitive antagonist for receptor for advanced glycation end product (RAGE). Recent studies have shown it to disrupt the interaction between RAGE and its ligands, such as S100P, S100A4 and HMGB-1 in binding assays and in multiple cancer cell lines. As well as this, it also blocks RAGE-dependent NF-kB activation in MPanc96, MOH and HPAF II tumor cell lines.Systemic administration of RAGE antagonist peptide also diminishes NF-kB signaling in vivo and significantly reduces glioma tumour growth in murine models.
Peso molecolare:1,271.7 g/molPTH (13-34) Human
PTH 13-34 is a biologically active fragment of parathyroid hormone (PTH) with hypertensive activities. PTH 13-34 is being trialled as a possible treatment for osteoporosis (to replace the existing recombinant human PTH 1-34 treatment peptide).PTH is an 84-amino-acid polypeptide hormone (PTH 1-84) which is secreted by the parathyroid glands along with its fragments (such as PTH 1-34 and PTH 7-84). PTH increases calcium and decrease phosphate levels in the blood and the abundance of PTH-derived peptides is regulated by blood calcium levels. PTH inhibits the bone growth-promoting activity of osteoblasts and induces osteoclasts to resorb bone and release calcium and phosphate ions into the blood. PTH binds to and activates the receptor parathyroid hormone receptor 1 (PTHR1). PTHR1 is a G-protein-coupled receptor (GPCR) which regulates mineral ion homeostasis, bone turnover and skeletal development.Peso molecolare:2,806.5 g/molH-GEAGPQGPR^-OH
Peptide H-GEAGPQGPR^-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-SHGQDYLVGNK^-OH
Peptide H-SHGQDYLVGNK^-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.Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met-Val-Gly-Gly-Val-Va
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolFormula:C55H100N14O14S1Peso molecolare:1,213.53 g/molH-LWEGSTSR^-OH
Peptide H-LWEGSTSR^-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-YENYELTLK^-OH
Peptide H-YENYELTLK^-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-EEQYNSTYR-OH
Peptide Ac-EEQYNSTYR-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.(Cbz-LGR)2-[Rh110]
The protozoan Trypanosoma cruzi that causes South American trypanosomiasis expresses peptidases during its entire parasitic life cycle. Understanding better the function and specificity of the peptidases may lead to new inhibitors and potential therapies. It has been shown this alkaline peptidase has a preference for basic amino acids at position one and position two of the substrate. The sequence Leu-Gly-Arg was shown to have a high Km and high Vmax compared to other peptides tested.Provided here is a fluorogenic peptide substrate for Trypanosoma cruzi alkaline peptidase. In its entire state, this peptide is not fluorescent. However, this peptide is cleaved by T. cruzi alkaline peptidase. Upon rhodamine 110 fluorophore release, fluorescence can then be detected. This peptide, therefore, allows for the quantification of T. cruzi alkaline peptidase activity. Rhodamine 110 is a widely used red fluorescent probe.Peso molecolare:1,250.6 g/molH-VGEVIVTK^-OH
Peptide H-VGEVIVTK^-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 (1-21)
Histone H3 (1-21) 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 a structure known as 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 the positioning of the nucleosome, allowing the DNA it to be either available or inaccessible to the transcription machinery.Histone H3 (1-21) has been utilised in research as a substrate for methyltransferase (Histone 3 K4 and K9) and acetyltransferase (Histone 3 K9 and K14) assays. Histone H3 (1-21) and these assays have already provided vital insights into the role's modifications play on the core histone functions. However, with so many histone modifications in different conditions still to be characterised the histone H3 (1-21) peptide still has a lot of insight to provide in the field.Peso molecolare:2,253.3 g/molH-VAIIGAGVSGLASIR^-OH
Peptide H-VAIIGAGVSGLASIR^-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-LSLGGLLQPEKPVVLK^-OH
Peptide H-LSLGGLLQPEKPVVLK^-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-RPPGF^-OH
Peptide H-RPPGF^-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.T-9 peptide
Duchenne muscular dystrophy is a severe muscle wasting X-linked genetic disease cause by mutations in the gene encoding the muscle structural protein, dystrophin. Exon skipping therapy remains a key approach for treatment of DMD but still requires considerable research to improve efficient and specific delivery of molecules to myofibers. Use of a phage library identified this sequence as having a high affinity for myofibers. Conjugation of this peptide to novel DMD molecules could provide the insights needed in the field.
Peso molecolare:1,343.6 g/molSARS-CoV-2 Membrane protein (141-158)
SARS-CoV-2 Membrane protein (141-158)Peso molecolare:1,932.1 g/molPolylysine
Peptide Polylysine 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.
Formula:C60H122N20O11Peso molecolare:1,299.77 g/molAc-KKRYSREFLLGF-NH2
Peptide Ac-KKRYSREFLLGF-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.SIVmac239 - 102
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolPeso molecolare:1,777.1 g/mol[BDP630/650]3-halphaCGRP (calcitonin gene-related peptide)
[BDP630/650]3-halphaCGRP (calcitonin gene-related peptide)Peso molecolare:4,299.1 g/mol[5-FAM]-CADY
Amphipathic helical peptide derived from the chimeric PPTG1 peptide and labelled at the N-terminus with fluorescein.Peso molecolare:3,038.6 g/molH-GPSSVEDIK^-OH
Peptide H-GPSSVEDIK^-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.
Braftide
BRAF dimers are a core component of the MAPK cascade to pass extracellular stimulus signalling to the nucleus. However, BRAF is also the most often mutated kinase in human cancers resulting in hyperactivation of signalling. BRAF inhibitors are thus a target for cancer therapy treatments.Braftide is a decamer of BRAF sequence found in the dimer interface. It binds allosterically to BRAF preventing kinase activity of mono/dimeric forms. It also leads to the degradation of BRAF and downregulation of MAPK signalling. This creates an ideal dual function inhibitor of a key kinase in cancers such as metastatic melanoma.Peso molecolare:1,241.7 g/molSMAP-18
SMAP -18 is a truncated form of sheep myeloid anti-microbial peptide-29 (SMAP-29). SMAP-29 displays extremely high anti-microbial activity against fungi and gram-negative bacteria including Pseudomonas strains and multidrug-resistant pathogens, however it also has high cytotoxic activity to human cells. The carboxyl terminal is more hydrophobic and may be responsible for higher hemolytic activity of SMAP-29, whereas the anti-microbial activity has been attributed to the N-terminal amphipathic alpha-helix region (residues 1-18). SMAP-18 displays much higher cell selectivity as compared to parental SMAP-29 because of their decreased hemolytic activity and retained anti-microbial activity.The cathelicidins are a large family of structurally diverse host defence peptide (HDP- formerly called antimicrobial peptides) found in mammalian species including humans. All members of the cathelicidin family contain an N-terminal cathelin domain and a C-terminal domain of varied structure that displays anti-microbial activity.Peso molecolare:2,063.3 g/molCMVpp65 - 73 (HIMLDVAFTSHEHFG)
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolPeso molecolare:1,741 g/mol5TAMRA-RRRRRRRRRC-NH2
Peptide 5TAMRA-RRRRRRRRRC-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.
SARS-CoV 3C-like protease (3CLpro) substrate (C-terminal KK-acid)
3CLpro are the key enzymes required by coronaviruses to replicate. They cleave polyproteins to form replicase. This makes 3CLpro a drug target for protease inhibitors with particular interest to COVID-19. For, example Paxlovid®- has been brought to market as a 3CLpro inhibitor that can be administered orally to reduce coronavirus disease 19 (COVID-19) hospitalisation. Aiming to expand on such advances, synthesis of more substrates for 3CLpro are being generated and tested for their ability to inhibit the protease activity and thus replication cycle of coronaviruses. This product is the natural substrate for 3CLpro, this makes it a useful tool as a control but also for structural manipulation to design inhibitors.
[Cys]-Exendin 4
Originally identified in Gila monster lizard (Heloderma suspectum), Exendin-4 is an incretin mimetic, an analog of glucagon-like-peptide-1 (GLP-1), it stimulates insulin secretion and modulates gastric emptying to slow the entry of ingested sugars into the bloodstream. Exendin-4 is resistant to cleavage by plasma DPP-IV unlike GLP-1. This gives it a longer half-life and duration of action than GLP-1, as well as greater potency in vivo. Exendin-4 increases insulin sensitivity and improves glucose tolerance and is currently used for the treatment of Type 2 diabetes mellitus in its synthetic form Exenatide.Exendin-4 also promotes the production and proliferation of β-cells leading to regeneration of the pancreas. It is a ligand to the exendin receptor and increases pancreatic acinar cell cAMP levels. However, the GLP-1 analog was found to have a toxic effect by inducing hypotension due to relaxation of the cardiac smooth muscle.This exendin-4 peptide is provided with an N-terminal cysteine residue for conjugation reactions.Peso molecolare:4,287 g/molKisspeptin 10 human
The biologically active C-terminal region of human Kisspeptin. Kisspeptin, is cleaved from a 145 amino acid precursor to a 54 amino acid peptide in humans and a 52 amino acid peptide in mice. Smaller isoforms of 14, 13 and 10 amino acids have also been isolated, each sharing the common C-terminal sequence. Kisspeptin-10 (KP-10) is the most potent member of the kisspeptin family and the plasma half-life of is approximately 6 fold shorter than KP-54. KP-10 is produced by the trophoblast cells in the first trimester of pregnancy and inhibits cell migration primary trophoblasts which is essential for placental invasion.Kisspeptin, a product of the KISS1 gene, is a hypothalamic neuropeptide that stimulates gonadotropin-releasing hormone (GNRH) neurons and drives fertility. Kisspeptin binds specifically to the G-protein-coupled receptor-54, now known as Kiss1r, which is expressed in almost all GNRH neurons. Kiss1r is also expressed in other areas of the brain and periphery, highlighting other possible roles for kisspeptin outside of reproduction.
Peso molecolare:1,302.4 g/molHXB2 gag NO-90
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolPeso molecolare:1,597.9 g/molSARS-CoV-2 NSP13 (221-235)
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 (221-235) 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.Peso molecolare:1,677.8 g/molNBD peptide / NF-κB blocker (cell permeable)
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool
Formula:C121H202N48O32Peso molecolare:2,841.2 g/molSARS-CoV-2 NSP13 (476-490)
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 (476-490) is an epitope candidate with various predicted HLA restrictions. This epitope can be used to better vaccine design for more durable CD4+ and CD8+ T cell responses for long-lasting immunity.Peso molecolare:1,658.9 g/molBiot-PICTF-OH
Peptide Biot-PICTF-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-GILLPQK^-OH
Peptide H-GILLPQK^-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.FGFR substrate
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolPeso molecolare:1,681.3 g/molClickBMVgag7-25
Brome mosaic virus (BMV) Gag peptide (7-25) has been utilised as a cell penetrating peptide (CPP). Translocation across the cell membrane with a cargo molecule varies in effectiveness depending on the CPP. BMV Gag (7-25) has a very high efficiency of internalisation which has been linked to the high percentage of arginine residues present.BMV Gag (7-25) is provided here with a N-terminal alkyne attachment. Two of the most regularly encountered functional groups for click chemistry are azides and alkynes, and the azide-alkyne cycloaddition has become the most popular click reaction. The use of click chemistry with alkyne-BMV Gag (7-25) allows a wide variety of applications particularly for conjugation, modification, and peptide design.Colore e forma:PowderH-DVWMSWVR^-OH
Peptide H-DVWMSWVR^-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-DVWGIEGPIDAAFTR^-OH
Peptide H-DVWGIEGPIDAAFTR^-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 - 91
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote ToolPeso molecolare:1,582.9 g/molLL-37 acid
LL-37, also known as CAP-18 for Cathelicidin antimicrobial peptide 18, is a 37 amino acid cationic peptide. LL-37 is also a typical linear antimicrobial peptide which can eliminate a wide range of pathogenes, including bacteria, viruses, fungi, and parasites. LL-37 is the only human cathelicidin peptide reported yet, found in lysosomes of macrophages and leukocytes. LL-37 plays an important role in the first act of defense against local infection and systemic invasion of pathogens at sites of inflammation. LL-37 shows cytotoxicity against bacterial and normal eukaryotic cells and is significantly resistant to proteolytic degradation. Besides its antimicrobial functions, LL-37 also has immunomodulatory roles. LL-37 suppresses the production of pro-inflammatory cytokines, TNF-α and IL-6 in infected monocytes. LL-37 increases cytokine and chemokine liberation from local cells and leucocytes and has chemotactic effects on a large number of immune cells.Peso molecolare:4,490.6 g/molHistone H3 (1-34)
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool
Formula:C144H260N54O44Peso molecolare:3,451.98 g/molDAG peptide
Cyclic DAG peptide targets connective tissue growth factor (CTGF/CCN2), present in the extracellular matrix, endothelial cells and overexpressed in several brain diseases. CTGF is a matricellular protein that acts as a regulator of several cellular functions, including cell adhesion, migration, mitogenesis, differentiation, and survival. CTGF is up regulated in Alzheimer's disease, Parkinson's disease, brain injury, glioblastoma, and cerebral infarction.DAG peptide has been shown to home to the brain in mouse models of glioblastoma, traumatic brain injury, and Parkinson's disease when exogenously delivered, making it an attractive target for the treatment of glioblastoma. DAG may be of use as a tool to enhance delivery of therapeutics and imaging agents to sites of brain diseases.Peso molecolare:1,005.4 g/molPanx-1 mimetic inhibitory peptide
CAS:Panx-1 mimetic inhibitory peptide that blocks pannexin-1 gap junctions. Inhibits P2X7-mediated dye uptake, ATP-mediated IL-1β release and caspase-1 activation without altering membrane current in macrophages. It can also block activation of NMDA receptor secondary currents.
Formula:C58H79N15O16Colore e forma:PowderPeso molecolare:1,242.34 g/molH-LQDAEIAR^-OH
Peptide H-LQDAEIAR^-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.MART-1 (26-35) (human)
CAS:Native Melan-A (26-35) decapeptide derives from the melanocyte lineage-specific protein Melan-A/MART-1, which is expressed in almost 75-100% of primary and metastatic melanomas. The region 26-35 of Melan-A protein acts as an antigenic peptide that is recognized by CD8+ tumor-reactive cytolytic T lymphocytes (CTLs) for designing antigen-specific cancer vaccines1. It has been shown that CD8+ Melan-A-specific CTLs isolated from melanoma patients efficiently lyse the Melan-A-expressing HLA-A*0201+ melanoma cell line. However, CTLs preferentially recognize the Melan-A (26-35) peptide as compared with the Melan-A (27-35) peptide. Moreover, the Melan-A (26-35) A27L analog (ELAGIGILTV) has a higher binding affinity to HLA-A*0201 than the native Melan-A (26-35) peptide (EAAGIGILTV), and consequently displays more potent antigenicity and immunogenicity. It has been reported that the concentration of Melan-A (26-35) A27L analog required to obtain 50% of maximal antigenic activity (EC50) is 0.01nM, whereas that of the native Melan-A (26-35) peptide is 0.25nM1. Therefore, the relative activity of Melan-A (26-35) A27L analog is 25 fold higher than that of the native Melan-A (26-35) peptide. Furthermore, functional competition assay has shown that the concentration of Melan-A (26-35) A27L analog required to achieve 50% inhibition (IC50) of tumor lysis is 2nM, which is 10 fold lower than that of the native Melan-A (26-35) peptide. Regarding peptide stability in human serum, the half-lifes (t1/2) of the native Melan-A (26-35) peptide and the A27L analog are quite similar (45 and 40min, respectively) as measured by HPLC-ESI-MS, but much higher than that of the Melan-A (27-35) nonapeptide (5min).Formula:C42H74N10O14Peso molecolare:943.11 g/molH-ELTIGSK^-OH
Peptide H-ELTIGSK^-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.
Parasin I
CAS:A potent antimicrobial peptide produced by the catfish Parasilurus asotus in response to epidermal injury. Parasin I is a derivative of catfish histone H2A.Formula:C82H154N34O24Colore e forma:PowderPeso molecolare:1,999 g/molAlyteserin-2Mb
Synthetic anti-microbial peptide originally identified and isolated form the skin secretions of the midwife toad,-Alytes maurus. Alyteserin-2Mb has 82% homology to alyteserin-2, from the closely related midwife toad-Alytes obstetricans.Alyteserin-2Mb has strong activity against Gram-positive-bacteria such as Staphylococcus aureus and weak activity against gram negative bacteria such as Escherichia coli and fungi such as Candida albicans.Peso molecolare:1,615.04 g/molTKD (450-463)
Heat shock proteins (Hsps) are highly conserved and stress inducible. Hsp70 has been found in tumour cell lines to be highly expressed with a higher plasma membrane localisation. This is correlated to the cell sensitivity to natural killer (NK) cell-mediated lysis. Investigation identified that Hsp70 N-terminal extended peptide TKD (450-463) was critical for this to occur. TKD (450-463) with low dose interleukin (IL-2) has the same capacity to induce NK cell proliferation and activity as the full-length protein Hsp70. Excess of Hsp70 and TKD (450-463) both inhibit cytolytic activity by NK cells. Other related sequences tested did not lead to NK cell-mediated lysis. Further study with the TKD (450-463) epitope could elucidate how NK cells are activated by Hsp70s as the mechanism remains unclear.Peso molecolare:1,562.8 g/molSIVmac239 envelope - 87
Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool
Peso molecolare:2,317.9 g/mol[Aurora™ Fluor 647]-RGD peptide
The RGD motif has been found in wide range of eukaryotic proteins allowing cell adhesion to the ECM. The tripeptide RGD is the primary domain to bind integrin found in extracellular matrix (ECM) proteins including fibronectin, fibrinogen and osteopontin. It has been shown to effectively adhere various cell types to a wide range of biomaterials. This is a key research tool in the flourishing area of tissue engineering and wound healing using synthetic peptides that are either inert or can be potentially beneficial. RGD is a suitable ligand for targeting nanomolecules and cancer drugs to specific tissues due to its biocompatibility and safety.This RGD peptide is supplied with an Aurora Fluor 647 fluorophore attached and produced to research grade quality. Aurora Fluor 647 excitation suited to 594nm and emission peaked at 671nm. The Molecular Probes Alexa Fluor dyes provide a number of benefits including: more intense fluorescence than other spectrally similar conjugates better photostability, allowing more time for image capture availability of conjugates in an array of distinct fluorescent colours from blue to infrared- and pH insensitivity that enables the dyes to remain highly fluorescent over a broad pH range and high water solubility.Colore e forma:PowderLasioglossin-III
Lasioglossin-III (Lasio-III) is a naturally-occurring salt-resistant anti-microbial peptide (AMP) found in-Lasioglossum laticeps-(broad-faced furrow bee). Lasioglossin-III has broad spectrum anti-microbial activity and anti-biofilm properties against Gram negative and Gram positive bacteria, including strong anti-microbial activity against-E. coli,-S. aureus, and-P aeruginosa-under physiological salt concentration, with low toxicity.AMPs form an important part of the innate immune system in plants, animals and insects-and are reported to be effective even against several antibiotic resistant strains due to differing modes of pathogen killing from those of conventional antibiotics. Lasio-III has a membranolytic mode of action. It can bind both the outer and inner membranes of bacteria. Lasio-III possesses a fast killing ability toward both Gram positive and negative bacteria compared to many other active AMPs.Peso molecolare:1,764.2 g/mol[5-FAM]-VGB4
Antagonist peptide of VEGF-A and VEGF-B reproducing two binding regions of VEGF-B (loop 1 and loop3) linked together by a receptor binding region of VEGF-A (loop3). Binds to both VEGFR1 and VEGFR2 and inhibits VEGF-A driven proliferation, migration and tube formation in HUVECs. It contains 5-carboxyfluorescein (5-FAM), a widely used green fluorescent tag.Peso molecolare:3,066.5 g/molH-VGYMHWYQQKPGK^-OH
Peptide H-VGYMHWYQQKPGK^-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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