Peptides

CGRP (Human, 8-37) is a peptide derived from the calcitonin gene-related peptide (CGRP) that is found in the nervous system and other tissues in humans. It is a truncated form of the full-length CGRP peptide, consisting of the last 30 amino acids of the CGRP sequence (amino acids 8-37).
CGRP is a potent vasodilator and plays a key role in regulating blood flow and blood pressure. It is also involved in pain perception, inflammation, and neurogenic inflammation. CGRP (Human, 8-37) is an antagonist of CGRP, meaning that it binds to the CGRP receptor without activating it, thereby blocking the effects of CGRP.
CGRP (Human, 8-37) has been used as a research tool to study the physiological and pathological roles of CGRP in various tissues and diseases, such as migraine headaches, cardiovascular diseases, and inflammatory disorders. It has also been investigated as a potential therapeutic agent for these conditions, as well as for the treatment of pain and other neurological disorders.
This product is available as a 0.5mg vial.

NHS-dPEG®12 Biotin is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. NHS-dPEG®12 Biotin is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

A synthetic snake toxin sourced from the black mamba, Dendroaspis polylepis polylepis which can be applied as a L-type Ca2+ channel blocker. This product has disulfide bonds between Cys3-Cys22, Cys17-Cys39, Cys41-Cys52, and Cys53-Cys58 and is available as a 0.1mg vial.

m-dPEG®36-Azide (Azido-m-dPEG®36) is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. m-dPEG®36-Azide (Azido-m-dPEG®36) is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

CCK-Octapeptide (26-33) is a peptide that is a member of the cholecystokinin family of peptides. CCK-Octapeptide (26-33) is an activator of the CCK receptor and can be used for research purposes. This peptide has been shown to inhibit ion channels, which are proteins that regulate the flow of ions across cell membranes, and may be used as a pharmacological tool or research tool.

Bis-dPEG®7-NHS Ester is a PEG polymer categorised as homobifunctional PEG (X-PEG X). Used as a linker, bis-dPEG®7-NHS Ester is used to attached PEG to proteins, peptides, oligonucleotides, nanoparticles and small molecules via pegylation, a bioconjugation technique.

Lys-Ala-AMC is an activator of ion channels and a ligand for receptors. It is used in research as a tool to study protein interactions, receptor pharmacology, and ion channel pharmacology. Lys-Ala-AMC binds to the α-subunit of voltage gated calcium channels and can activate these channels by increasing the rate of opening. This peptide also inhibits receptor binding by competing with the natural ligand. It has been shown to be an antagonist at the NMDA receptor and can inhibit the binding of glycine to this receptor.

m-dPEG®24-Azide (Azido-m-dPEG®24) is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. m-dPEG®24-Azide (Azido-m-dPEG®24) is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

MAL-dPEG®24-Acid is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. MAL-dPEG®24-Acid is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

m-dPEG®4-Azide (Azido-m-dPEG®4) is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. m-dPEG®4-Azide (Azido-m-dPEG®4) is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

Amyloid beta-Protein (Human, 25-35) is the shortest amyloid fragment that forms β-sheet fibrils, while retaining toxicity, and may also induce the aggregation of N-tau protein and N-tau peptide 1/2R. Consequently this peptide may play a role in the pathogenesis of Alzheimer's disease, a neurodegenerative disorder that affects memory and cognitive function.
This product is available as a trifluoroacetate salt and as a 0.5mg vial.

CoV-2 IgG S1 antibody binds to both SARS-CoV and SARS-CoV-2 (COVID-19) with high affinity at amino acids 318-510 in the S1 domain of the Spike protein and can be used in ELISA assays. SARS Coronavirus is an enveloped virus containing three outer structural proteins, namely the membrane (M), envelope (E), and spike (S) proteins. Spike (S)-glycoprotein of the virus interacts with a cellular receptor and mediates membrane fusion to allow viral entry into susceptible target cells. Accordingly, S-protein plays an important role in virus infection cycle and is the primary target of neutralizing antibodies. It has recently been shown that SARS is caused by a human coronavirus. Human coronaviruses are the major cause of upper respiratory tract illness in humans, such as the common cold. Coronaviruses are positive-stranded RNA viruses, featuring the largest viral RNA genomes known to date (27-31 kb). The first step in coronavirus infection is binding of the viral spike protein, a 139-kDa protein, to certain receptors on host cells. The spike protein is the main surface antigen of the coronavirus. The most prominent protein in the culture supernatants infected with SARS virus is a 46 kDa nucleocapsid protein. This suggests that the nucleocapsid protein is a major immunogen that may be useful for early diagnostics.
Recombinant Anti Human SARS CoV-2 IgG1 Kappa Spike S1 is a recombinant monoclonal antibody derived from HEL293 cells, which recognizes the SARS-CoV and SARS-CoV-2 Spike glycoprotein. CoV-2 IgG S1 Antibody binds to both SARS-CoV and SARS-CoV-2 with high affinity at amino acids 318-510 (RBD, Receptor Binding Domain) in the S1 subunit of the Spike protein.  The native monoclonal antibody was generated by sequencing peripheral blood lymphocytes of a patient exposed to the SARS-CoV.  The ELISA Plate was coated with the target proteins at 5 µg/ml. Primary antibodies were titrated on a 3-fold serial dilution starting at 125 ng/ml,  CoV-2 IgG S1 antibody recognises SARS-CoV-2 spike protein subunit 1 (aa 1-674), or 41.6 ng/ml CoV-2 IgG S1 antibody recognised spike protein from SARS-CoV (subunit 1, aa 1-666) and SARS-CoV-2 (subunit 1, aa 1-674). Secondary antibody anti-human IgG conjugated to HRP used in the assay, at 1:4000 concentration. This product was purified through Protein A affinity and avaiable in the formulation: 1mg/ml in PBS and 0.02% Proclin 300F.

Somatostatin is a peptide hormone that is produced by the hypothalamus and inhibits the release of growth hormones, stimulates the release of insulin from the pancreas, and inhibits the release of glucagon from the pancreas. Somatostatin also has biological properties that inhibit neuronal death in combination therapy groups. It has been shown to have cell factor activity which may contribute to its antitumor activity. Somatostatin also has pro-apoptotic properties in vitro assays at physiological levels, making it an excellent target for cancer therapy.

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

MAL-dPEG®4-Acid is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. MAL-dPEG®4-Acid is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

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

Suc-Gly-Pro-Leu-Gly-Pro-AMC is a high purity, monoclonal antibody that can be used as a research tool or as an inhibitor. It has been shown to inhibit ion channels and protein interactions. Suc-Gly-Pro-Leu-Gly-Pro-AMC is also known as a ligand for the receptor. It has been shown to activate the receptor and cause a change in the cell membrane permeability by increasing calcium flux, which leads to an increase in intracellular calcium levels. Suc-Gly-Pro-Leu-Gly-Pro-AMC is found in Cell Biology and Pharmacology research studies.

Ser-Gln-Asn-Tyr-Pro-Ile-Val is a synthetic peptide. It has been shown to act as a competitive inhibitor of the GABA receptor, specifically in the alpha3 subunit. This inhibition has been found to be competitive with respect to GABA and benzodiazepine binding. Additionally, Ser-Gln-Asn-Tyr-Pro-Ile-Val has been shown to inhibit ion channels that are activated by extracellular potassium ions, such as KV7.1 and KV7.2 potassium channels.

MSH-Release Inhibiting Factor (MRIF) has been shown to be a potent inhibitor of the release of proinflammatory cytokines. It is derived from the acid methyl ester of mouse serum, and has been shown to inhibit the release of tumor necrosis factor-α (TNF-α) in animal studies. MRIF has also been shown to have anti-diabetic effects in mice. MRIF inhibits the production of inflammatory cytokines by blocking TNF-α at a molecular level. This protein binds to progesterone receptor and prevents it from interacting with its ligand, which is necessary for cancer cell growth. The expression system for this protein is E. coli, and it can be used as an immunosuppressant in animal studies.
MRIF also blocks TNF-α activity by inhibiting transcriptional activation of NFκB and AP-1, which are proteins that regulate gene expression.

m-dPEG®4-MAL is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. m-dPEG®4-MAL is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

Thiol-dPEG®8-Acid is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. Thiol-dPEG®8-Acid is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

Z-Gly-Phe-NH2 is a peptide that inhibits protein synthesis by binding to the ribosome. It has been shown to inhibit enzyme preparations containing peptides and proteins, such as hydrogen bond formation, phase transition temperature, uptake, and inhibitory effect. This molecule may be used in biochemical or molecular studies of protein synthesis. The uptake of Z-Gly-Phe-NH2 can be inhibited by ouabain binding. Z-Gly-Phe-NH2 also has a ca2+ response when calcium ionophores are applied to Xenopus oocytes.

Fibronectin is an extracellular matrix protein that plays a critical role in cell adhesion, migration, and differentiation. Fibronectin subunits are composed of repeating units of three types of modules: type I, type II, and type III. The active fragment of fibronectin refers to a small peptide sequence within the type III modules of fibronectin that has been shown to have potent biological activity.
The fibronectin active fragment, also known as the cell-binding domain or RGD domain, is a short peptide sequence consisting of the amino acid sequence Arg-Gly-Asp (RGD). This peptide sequence interacts with cell surface receptors known as integrins, which are important for mediating cell adhesion, migration, and signaling.
The fibronectin active fragment has been extensively studied as a research tool to investigate the mechanisms of cell adhesion and migration. It has also been used in tissue engineering applications to promote cell attachment and proliferation on synthetic biomaterials.

m-dPEG®36-Amine is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. m-dPEG®36-Amine is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

Amino acids 39-68 of the Parathyroid Hormone (PTH) which is a peptide hormone that is secreted from the parathyroid gland in the event of abnormal serum calcium levels and it ultimately regulates calcium and phosphate levels in the body. The PTH exerts its activity through binding to the G-protein coupled receptor type 1 PTH receptor, which activates adenylate cyclase or phospholipase C thus activating pathways involved in the mediation of bone resorption and bone formation. This product is suitable for life science applications and is available as a 0.5mg vial.