Produits biochimiques et réactifs

<p>Mucin 10 (153 - 165), EA2.</p>

<p>Histone H3 (1-22) 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.</p>

<p>VEGFR2 protein is a growth factor that plays a crucial role in angiogenesis, the formation of new blood vessels. It is targeted by monoclonal antibodies and recombinant proteins for various research and therapeutic applications in the field of Life Sciences. VEGFR2 protein interacts with other molecules such as angptl3, interferon, and growth hormone receptor to regulate endothelial cell proliferation and promote vascular development.</p>

<p>Rabbit polyclonal UNC13A antibody</p>

<p>FdM, ferredoxin maquette is a synthetic peptide which can bind a [4Fe-4S] cluster and contains a bacterial ferredoxin consensus motif (CIACGAC).</p>

Morphine-BSA is a unique compound that has shown promising effects in the field of Life Sciences. It is an activated hapten conjugate that has been used to study endothelial growth and viscosity. This compound emits a specific signal when bound to its target, making it a valuable tool for research purposes. Additionally, Morphine-BSA has been used in the development of neutralizing monoclonal antibodies and has shown antiangiogenic properties by inhibiting the growth factor TNF-α and interleukin-6. Its immobilization on collagen has also been explored for potential therapeutic applications. If you're looking to delve into cutting-edge scientific investigations or advance your knowledge in this field, Morphine-BSA is an essential component to consider.

<p>Peptide obtained by linking the 11 amino acid human HIV Tat transporter to a 21 amino acid sequence corresponding to the ADAM10 proline-rich domains.</p>

<p>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.</p>

<p>Vnn1</p>

<p>ProTx-II is a synthetic peptide that activates the TRPV1 receptor, a member of the capsaicin receptor family. ProTx-II has been shown to inhibit NGF-induced neurite outgrowth, and can be used as a research tool in studying the structure and function of TRPV1 receptors. ProTx-II is also an inhibitor of protein interactions with the TNF receptor, and has been shown to selectively inhibit NFκB activation by inhibiting IKK kinase activity.</p>

<p>Purified recombinant ompP2 protein (His tag)</p>

<p>H-Ser-His-OH acetate salt is an amide that has been shown to have a neutral pH and to be soluble in organic solvents such as chloroform. It has a biological function of being a serine protease inhibitor. H-Ser-His-OH acetate salt binds to the amino acid histidine and inhibits the activity of serine proteases. This product has been used in fluorescence techniques, immunofluorescence analyses, and molecular biology.</p>

<p>Echinotocin is a neurophysin containing precursor neuropeptide derived from the sea urchin Strongylocentrotus purpuratus.</p>

<p>GRGDS peptide</p>

<p>EB1 is a penetratin analogue that was synthesised to be an endosomolytic cell penetrating peptide (CPP). Certain amino acids in the penetratin sequence were replaced with histidine to encourage formation of an alpha helix upon protonation in the acidic endosomes. As a CPP, EB1 has been shown to form a strong interaction with the phospholipid bilayer during insertion with rapid cellular uptake, there is a moderate amount of cell leakage and no significant cytotoxicity.EB1 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-EB1 allows a wide variety of applications particularly for conjugation, modification and peptide design.</p>

Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool

<p>Histone H3 (1 - 20) K4Me3 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. 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. Like 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 many lysine and arginine residues, they have a positive net charge which interacts electrostatically 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 alter the positioning of the nucleosome, allowing the DNA to be either available or inaccessible to the transcription machinery.Histone tails can undergo multiple modifications, including acetylation, methylation, ubiquitylation and sumoylation.  The modification pattern is believed to alter chromatin function/structure.  Lysine 4 of histone H3 (1 - 20) K4Me3 has been tri-methylated, lysine 9 has been acetylated, and serine 10 has been phosphorylated and labelled with Biotin. This peptide can be used to study the function of this pattern on chromatin availability and histone effectors via crystallisation, pull-down assays and protein blots.</p>

<p>COMPOUND P-14 is a photoinitiator that is used in the polymerization of polymers. It is characterized by its high solubility and volatility, which makes it suitable for use as an on-line initiator in liquid chromatography and electrospray ionization mass spectrometry. COMPOUND P-14 has been shown to have photosensitivity as well as fluorescence properties. Liquid chromatography analysis has also revealed that it contains chalcones, flavonoids, and other volatile compounds.</p>

<p>Exendin-4 is part of a group of peptide hormones, the exendins. These are members of the glucagon superfamily of peptides and are secreted from the Gila monster lizard (Heloderma suspectum) venom gland. Exendins stimulate insulin secretion in response to rising blood glucose levels and modulate gastric emptying to slow the entry of ingested sugars into the bloodstream. Exendin-4 increases insulin sensitivity and improves glucose tolerance in humans and animals with diabetes. Exendin-4 is currently used for treating type 2 diabetes mellitus in its synthetic form, Exenatide.Exendin-4 shares 53% sequence homology, and specific activities, with glucagon-like-peptide-1 (GLP-1). Enteroendocrine L-cells produce GLP-1 upon nutrient ingestion, its central role relates to insulin secretion. Unlike GLP-1, exendin-4 is resistant to cleavage by plasma dipeptidyl peptidase IV (DPP-IV), resulting in a longer half-life and duration of action than GLP-1, as well as greater potency in vivo. Exendin-4 binds and activates the glucagon-like peptide-1 receptor (GLP-1R). In addition to its role in insulin sensitivity, exendin-4 also has a role in pancreas development and has anti-cancer properties.This exendin-4 contains AF647, a structural analog to Alexa Fluor® 647, a widely used far-red fluorescent dye. Its excitation is ideally suited to 594nm or 633nm. This dye is suited for low abundance targets as it has high initial brightness and a high photostability allowing detection of low abundance peptides. If you desire an alternative dye, please contact us to request a custom synthesis.</p>

<p>a-Gliadin (229-246) is derived from Gliadin peptides, the component of wheat involved in the gastrointestinal symptoms of wheat allergy and Celiac Disease (CD). During wheat allergies histamines and leukotrienes are secreted due to gliadin peptide sequences cross-linking two IgE molecules on mast cells and basophils.The glutamine and proline rich peptides of which Gliadin is composed of are resistant to proteolysis during digestion, leaving them active in the gastrointestinal tract. Subsequently these are deamidated by tissue transglutaminase and can bind to HLA-DQ2 or DQ8. As a result in patients with the autoimmune disease CD, there is a Th1-mediated inflammatory immune response against these gliadin peptides.Gliadin can exert additional effects on the intestinal microbiota and ileal barrier function. It has been found that gut microbiota members such as Bifidobacterium and lactobacillus have the ability to digest and inactivate gliadin peptides hence reducing their inflammatory effects in the gastrointestinal system.</p>

Goat anti-mouse IgM (Alk Phos) was raised in goat using murine IgM mu chain as the immunogen.

<p>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.</p>

<p>Myelin basic protein (MBP) can induce experimental allergic encephalomyelitis (EAE) in Lewis rats. EAE is the most commonly used experimental model for studying the human inflammatory demyelinating disease, 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 multiple sclerosis. The low affinity of MBP (1-9) peptide for MCH class II molecules may result in MBP autoreactive T cells escaping central-tolerance, where self-reactive T cells are usually eliminated.The arginine residue at position 6 is isotopically labelled with carbon-13(6) and nitrogen-15(4).</p>

<p>Peptide H-QGDVFVVPR^-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.</p>

<p>Apixaban is an anticoagulant agent used for the prophylaxis of stroke and deep vein thrombosis leading to pulmonary embolism. This drug is an inhibitor of factor Xa and prothrominase. As a result, this prevents the formation of a thrombus.</p>

<p>Ampicillin Conjugate for use in immunoassays</p>

<p>FRET peptide substrate for the severe acute respiratory syndrome coronavirus main protease (SARS-CoV Mpro). The substrate sequence is derived from residues P4-P5' of the SARS-CoV Mpro N-terminal autoprocessing site which has the sequence AVLQSGFRK. SARS-CoV Mpro is a key antiviral target.This peptide contains an N-terminal 5-Carboxyfluorescein (5-FAM), a widely used green fluorescent tag and the Dabcyl fluorescence quencher. When the peptide is intact, fluorescence is undetectable due to the proximity of the Dabcyl quencher to the 5-FAM fluorophore. However upon cleavage of the peptide by SARS-CoV Mpro, the 5-FAM group and the Dabcyl quencher are separated and fluorescence can be detected. This therefore represents a useful tool for investigating SARS-CoV Mpro activity.</p>

<p>Strongzyme Rabbit anti Goat IgG (H + L) (HRP) secondary antibody</p>

<p>The peptide Sapecin B exhibits antimicrobial properties against gram-positive bacteria. It is originally derived from the sarcophaga peregrine embryonic cell line, NIH-Sape-4.</p>

<p>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)] 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)] acid is provided here. However, the amide version is also available.</p>

<p>GGG-C(AF647) C-Terminal Sortagging</p>

<p>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. These PAR-activating proteases therefore represent PAR agonists. This PAR-2 agonist peptide mimics the sequence of the 'tethered ligand' and is therefore capable of activating the receptor independently of N-terminal proteolysis.PAR-3 is required for intercellular adhesion molecule 1 (ICAM-1) expression in endothelial cells and PAR-3 cooperates with PAR-1 to mediate the effect of thrombin on cytokine production and vascular cell adhesion molecule (VCAM-) 1 expression.PAR activation has been linked to inflammation, therefore compounds that mimic or interfere with the PAR-activating processes are attractive therapeutic candidates.</p>

<p>A 26-residue fragment from BH3 only protein Bim, BH3 only proteins constitute a major proportion of pro-apoptotic members of the B-cell lymphoma 2 (Bcl-2) family of apoptotic regulatory proteins and participate in embryonic development, tissue homeostasis and immunity.</p>

<p>Portion of EBV RTA</p>

<p>eV1-2 is a selective εPKC inhibitor peptide which interferes with protein-protein interactions between the ϵPKC isozyme and its anchoring protein (ϵRACK). ϵPKC and ϵRACK regulate the contraction rate of heart muscle cells and provide protection from ischemia induced cell death. ϵV1-2 is derived from the C2 domain of ϵPKC, a region important for protein-protein interactions and thus acts as a competitive inhibitor of these interactions. The C2 region is well conserved between species, but different enough from other PKC isozymes to allow for targeted inhibition (ϵV1-2 is 88% identical between sea slugs and rat ϵPKC, yet only 36% identical between rat ϵPKC and rat θ´PKC). This peptide contains a C-terminal cysteine residue for conjugation to a carrier protein.</p>

<p>Thrombin is the main effector of the coagulation cascade- it is a serine protease. Thrombin binds to active protease activated receptor 1 (PAR-1) which belongs to a subfamily of G-protein coupled receptors (GPCR). However, thrombin generated during cardiopulmonary bypass can activate PAR-1 leading to platelet dysfunction and unwanted bleeding. FLLRN is found to be a potent PAR-1 antagonist. Use of FLLRN and variants has aided the study of platelet aggregation dynamics. Further study may provide a suitable clinical application.</p>

<p>εV1-2 is a selective inhibitor of ε protein kinase C.ε protein kinase C is an isoymes of the protein kinase C family, which is a family involved in controlling the function of other proteins via phosphorylation of hydroxyl groups of serine and threonine amino acid residues.In vitro studies have shown εV1-2 to exhibit inhibitory properties on endothelial cell proliferation.</p>

<p>Polybia-MPI is a short cationic alpha-helical amphiphilic anti-microbial peptide which was first isolated from the venom of the social wasp Polybia paulista. Polybia-MPI displays potent anti-bacterial activity against both Gram-positive and Gram-negative bacteria and is able to disrupt biofilms. Polybia-MPI also has anti-fungal activity against C. albicans and C. galbrata and selective toxicity toward cancer cells. Polybia-MPI has low toxicity to normal fibroblasts and human red blood cells, showing no haemolytic activity.</p>

<p>Angiotensin 1-7 (Ang-(1-7)) is a component of the renin angiotensin system RAS. Ang-(1-7) is produced by angiotensin-converting enzyme 2 (ACE2), from the angiotensin II (Ang-II) peptide, as well as by prolylendopeptidase (PEP) and neutral endopeptidase (NEP) which produce Ang1 7 directly from angiotensin I (Ang-I).Ang-(1-7) broadly opposes Ang-II actions. Ang-(1-7) has vasodilatory and anti-oxidative effects, and exerts protective actions in hypertension, diabetes, and other cardiovascular disorders. Ang-(1-7) represents a promising therapeutic target for cardiovascular and metabolic diseases. Ang (1-7) stimulate the secretion of atrial natriuretic peptide (ANP) and exerts its actions via its G protein-coupled receptor, Mas. ANP is part of an antagonistic hormonal system to RAS, which also participates in the regulation of body fluid and electrolytes balance. ANP is mainly released from the atrium, and its release results in natriuresis, anti-hypertension, and anti-proliferation.This novel arm of the RAS has effects that counterbalance those mediated by the classical ACE/Ang-II pathway. The valine residue of this peptide is universally labelled with carbon-13 and nitrogen-15 stable isotopes, giving a mass increase of 6.</p>

<p>protein transduction domain PTD-5 is a cell-penetrating peptide (CPP). PTD-5 is well characterised for its ability to carry conjugates into the cell with high efficiency and induce low toxicity. Several papers have demonstrated the efficacy of PTD-5 as a CPP- PTD-5 was also conjugated to KLA to produce a pro-apoptotic peptide named DP1 which is selective for mitochondrial and bacterial membranes.PTD-5 is labelled at the N-terminus with an alkyne attachment for ease of reaction with an opposite Click reactive partner (azide). Azide-alkyne cycloaddition has become the most popular Click reaction. Alkyne-PTD-5 allows various applications, particularly for protein conjugation, modification, and drug delivery.</p>

<p>ANP (human) is derived from the atrial natriuretic peptide (ANP) which is a cardiac hormone involved in maintaining cardio-renal homeostasis. This occurs through the activation of the guanylyl cyclase-coupled receptor, resulting in the increased concentration of cyclic guanylate monophosphate. Moreover its function in the processes of anti-proliferation and anti-angiogenesis allow it to take part in cardiovascular remodelling.ANP is a member of the natriuretic peptide family and it is encoded by the NPPA gene, located on chromosome 1. Once synthesized from the 151 amino acid pre-prohormone into its biologically active form, ANP is secreted by the atrial cardiomyocytes in the circulating forms: ANP (1-98) and ANP (99-126). This synthesis process involves the signal peptide being removed from the pre-prohormone resulting in pro-ANP (1-126) which is converted into the circulating forms by the type II transmembrane serine protease Corin.At the N-terminus Azhx, 6-azidohexanoic acid, is present.</p>

<p>Ready-to-use biotin free reagent applicable for blocking ELISA plates</p>

Peptide MBP MAPK Substrate 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.

<p>Donkey anti-rabbit IgG (H+L) was raised in donkey using rabbit IgG, whole molecule as the immunogen.</p>

<p>Cathepsin D antibody was raised in rabbit using purified cathepsin D (liver) as the immunogen.</p>

<p>Purified recombinant CD46 protein (His tag)</p>

<p>ND-630 is a drug that has been designed to treat metabolic disorders by targeting the transcription-polymerase chain reaction of the epidermal growth factor. It has been shown to alleviate liver lesions and hepatic steatosis in mice. ND-630 may also be a potential biomarker for hepatocyte injury, as it has been shown to have an effect on energy metabolism and lipid synthesis. There is also some evidence that ND-630 may be used as an anthelmintic drug.</p>

<p>Anti-ROBO1 antibody</p>

<p>Streptavidin Poly-HRP80 Conjugate (diluted to 2 µg/mL in stabilizer 85R-104).</p>

<p>EPO antibody was raised in mouse using human EPO as the immunogen.</p>