Peptides & Amino Acids

Primary SIL peptide for Emicizumab  detection and quantification

Secondary SIL peptide for Emicizumab  detection and quantification

SIL peptide for Infliximab detection and quantification

OVA 257 264 peptide (SIINFEKL) conjugated to KLH Ovalbumin protein Ovalbumin (Uniprot P01012) is the major component of egg white. It has been demonstrated that Ovalbumin contains B-cell epitopes which are recognized by specific IgE antibodies and CD4 T cell epitopes restricted by the MHC I-Ad molecule in mice and by HLA-D molecule in human such as OVA(257-264). Applications of OVA 257-264 OVA 257-264 is used to stimulate T cells in PBMCs and to quantify peptide epitope specificity and IFN-γ releasing effector cells by ELISPOT assay. OVA 257-264 is also used to test new adjuvant in immunotherapeutic vaccine development. OVA 257-264 can form a stable hydrogel and stimulate a immune response. This reaction seems to be linked with OVA 257-264 property to self-assemble into a hydrogel. OVA 257-264 KLH conjugate Keyhole limpet hemocyanin (KLH) is a carrier protein which enhances immune response against haptens conjugated to it. SB-PEPTIDE has a long experience in haptens / carrier prot

TET 830 modified/T-helper epitope from tetanus toxoid – AQYIKANSKFIGITEL Tetanus Tetanus is a life-threatening condition caused by Clostridium tetani bacteria. After entering the body through a break in the skin, they produce a toxin that causes convulsions and severe muscle spasms, that can be strong enough to fracture bones of the spin. Tetanus toxin inhibits neurotransmitter release by binding to peripheral neuronal synapses. The substance will then be internalized and transported to the spinal cord where it will be able to move between postsynaptic and presynaptic neurons. For the time being, there is no cure for tetanus. Indeed, the extreme potency of the tetanospasmin toxin prevents immunity in infected people, leading to 30-40% deaths among this population. Symptoms usually start 4 to 21 days after infection, and most of the people get them after about 10 days. Tetanus vaccine Thanks to the widespread use of tetanus vaccines, infections are rare in many countries.

TET 830/Tetanus Toxin (830-844) peptide – QYIKANSKFIGITEL Tetanus Tetanus is a life-threatening condition caused by Clostridium tetani bacteria. After entering the body through a break in the skin, they produce a toxin that causes convulsions and severe muscle spasms, that can be strong enough to fracture bones of the spin. Tetanus toxin inhibits neurotransmitter release by binding to peripheral neuronal synapses. The substance will then be internalized and transported to the spinal cord where it will be able to move between postsynaptic and presynaptic neurons. For the time being, there is no cure for tetanus. Indeed, the extreme potency of the tetanospasmin toxin prevents immunity in infected people, leading to 30-40% deaths among this population. Symptoms usually start 4 to 21 days after infection, and most of the people get them after about 10 days. Tetanus vaccine Thanks to the widespread use of tetanus vaccines, infections are rare in many countries. However, this

RS09/Toll Like Receptor (TLR) 4 agonist – APPHALS Toll Like Receptors (TLRs) Toll Like Receptors (TLRs) are an important family of type I transmembrane Pattern Recognition Receptors (PRRs) that play a key role in activating and linking the innate immune system to adaptive immunity, by sensing invading pathogens or endogenous damage signals. TLRs are expressed on sentinel cells, including macrophages and dendritic cells, and there are ten functional receptors in human (TLR1–10) and twelve in mice (TLR1−9, 11−13). TLR4 and LPS recognition When TLRs are activated, they recruit specific adaptor proteins into the cytosol of immune cells. These adaptors act as messengers to activate transcription factors NF-κB and IRFs, which are the two major effectors of the Innate Immune Response (IIR). Among membrane-based TLRs, TLR4 is well known for recognizing lipopolysaccharides (LPS) on myeloid cells surface. These cells express LY96 (or MD-2) and CD14 proteins at high level, which are us

MAGE-A3 (112-120) peptide – KVAELVHFL – Epitope of Melanoma Antigen Gene A3 SB-PEPTIDE offers MAGE-A3 (112-120) HLA-A*02:01 KVAELVHFL T-cell epitope for antigen-specific T-cells stimulation in ELISPOT, ICS, cytotoxity or proliferation assays. MAGE-A3 protein MAGE-A3 (UniProt: P43357) is a tumor-specific protein expressed in more than 70% of metastatic melanomas, as well as a wide range of non-melanoma epithelial malignancies including lung, ovarian, bladder, head and neck carcinomas, multiple myeloma and hepatocellular carcinoma. MAGE-A3 shares 73% identity with MAGE-A1 protein (UniProt: P43355) and is recognized by autologous cytolytic T-lymphocytes (CTL). KVAELVHFL – HLA-A*02:01 T-cell epitope To stimulate antigen-specific T-cells, peptides are presented by major histocompatibility complex (MHC) class I molecules on the surface of antigen-presenting cells (APCs). Usually, antigenic peptides are between 8 and 11 amino acids in length and exhibit MHC-specific sequenc

Protirelin – Thyrotropin-releasing hormone (TRH) (CAS: 24305-27-9) Thyrotropin-releasing hormone (TRH) Thyrotropin-releasing hormone (TRH) is a tripeptide hypothalamic regulatory hormone that regulates the release of thyroid-stimulating hormone (TSH), as well as prolactin (for breasts growth and milk production during and after pregnancy). To obtain thyrotropin-releasing hormones, 6 pro-TRH peptides have first to be obtained from the larger preproTRH precursor (UniProt: P20396). These octapeptides are then cleaved between Arginine/Glutamine and Glutamine/Lysine residues to release 6 Gln-His-Pro-Gly peptides that will be enzymatically converted in pGln-His-Pro-NH2 peptides (pGln representing pyroglutamine). After TRH maturation (1) in neurons located in the pituitary gland, the hormone will be transported along axons (2) to reach the hypophyseal portal system via exocytosis (3). Once the thyrotrophs reached, thyrotropin-releasing hormone binds TRH-receptor (4) to enable TSH syn