Peptides & Amino Acids

MAGE-A2 protein: MAGE-A2 (157-166) is an epitope of Melanoma Antigen Gene A2 and is one of the most Cancer-Testis Antigens (CTA) overexpressed in tumors of different histological types, such as prostate cancer. Type of MAGE-A expressed in tumors cells varies according to the type of tumor. The expression of MAGE-A2 causes the proliferation of prostate cancer cells and decreases the chemosensitivity. Applications of MAGE-A2 (157-166): MAGE-A2 (157-166) is used to stimulate specific immune response, cytotoxic T cell response and to analyze the cytokine production in PBMCs by ELISPOT assay. In transgenic mouse, it has been demonstrated that MAGE-A2 (157-166) was capable of eliciting a CTL response presented by HLA-A*02:01 molecules. MAGE-A2 (157-166) has been reported to elicit CTL that could lyse tumor cell expressing both HLA-A*02:01 and MAGE-A2 by stimulation of peripheral blood mononuclear cells (PBMCs) with MAGE-A2 (157-166).

CMV pp65 protein: CMV pp65 (113-121) is an epitope of the main component of the enveloped subviral particle pp65 (phosphoprotein ppUL83) of Cytomegalovirus, member of herpes virus group. CMV pp65 antigens are used as target for the diagnosis of concomitant CMV end-organ disease. CMV specific cytotoxic T lymphocyte response is highly focused to pp65 in the context of HLA-A24:02. Applications of CMV pp65 (113-121): CMV pp65 (113-121) is used to stimulate peptide-specific CTL response and to analyze interferon γ production by flow cytometry and ELISPOT assay. CMV pp65 (113-121) contains HLA-A24 binding site and elicits CMV pp65 (113-121)-specific CTL in PBMCs which recognize pp65 expressed on CMV-infected fibroblast of HLA-A24 positive patients. CMV pp65 (113-121) might be implicated in improvement of immunotherapeutic strategies for efficient vaccine development against HCMV.

SARS-CoV-2 Spike (S) glycoprotein: Spike (S) glycoprotein corresponds to one of the leading targets for COVID-19 disease. Present on the surface of Sars-CoV-2 virus, Spike S protein in a class I fusion protein that allows the virus to enter host cells. Variants package available: Some proteins of Sars-CoV-2 are identified as leading targets for COVID-19 therapies. SB-PEPTIDE offers a special pack pre-made peptide libraries of Spike protein including peptides from COVID-19 variants: UK COVID-19 variant B.1.1.7, South Africa COVID-19 variant B.1.351, Brazil COVID-19 variant B.1.1.248. SB-PEPTIDE offers additional plate containing only peptides with Spike S protein mutation of COVID-19 B.1.1.7, B.1.3.5.1 and B.1.1.248 (cited below). Variants package and Spike (S) glycoprotein peptide library can be used for T-cell assays, immune monitoring, antigen specific T-cell stimulation, T-cell expansion and cellular immune response.

SB-peptide offers the scrambled version of OVA 257-264. FILKSINE can be used as a negative control of OVA 257-264 studies. SB-peptide offers also OVA 257-264 (see section OVA 257-264). Ovalbumin protein: OVA 257-264 (H-2Kb) is an epitope of interest of the egg white albumen, ovalbumin. Ovalbumin is a glycoprotein that is sufficiently large and complex to be mildly immunogenic. Indeed, 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. 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 s

Biotin-FluM1 (58-66) is the N-ter biotinylated version of FluM1 (58-66). Biotin-FluM1 (58-66) can be used in the analysis of antigen-specific T cells. FluM1 (58-66): FluM1 (58-66) is a short part of the matrix protein of Influenza A virus which is the most abundant component of this enveloped virus localized under the viral lipid envelope. The GILGFVFTL epitope is highly conserved in Influenza A virus strains at a rate of 93% for 69 strains tested. Human Influenza epitopes may bind MHC molecules and then may be recognized by CD8+ cytotoxic T cells. Applications of FluM1 (58-66): FluM1 (58-66) is used to stimulate CTL responses in peripheral blood mononuclear cells (PBMCs). Then, ELISPOT assay is used to quantify peptide epitope specificity and IFN-γ releasing effector cells. FluM1 (58-66) has shown CTL responses qualified of immunodominant with restriction by HLA-A*02:01. It has also been detected CTL responses when FluM1 (58-66) is restricted by all HLA-C. Therefore, FluM1 (58-66) ma

Biotin-NY-ESO-1 (157-165) – General analog epitope of tumor cells Biotin-NY-ESO-1 (157-165) C165V peptide is the N-ter biotinylated version of NY-ESO-1 (157-165) C165V peptide. It can be used in the analysis of antigen-specific T cells. HLA-A*02 Major Histocompatibility Complex (MHC) allele HLA-A*02 allele is expressed in class I Human MHC Leukocyte Antigens (HLA), that are cell surface receptors, presenting peptides to the immune system. If a non-self-peptide is recognized by cytotoxic T-cells in the blood, cell death will be initiated via apoptosis. NY-ESO-1 protein Peptides presented by MHC class I molecule, are usually between 7 and 11 amino acids, originating from proteins expressed by the cell. SLLMWITQV peptide differes from the New York esophageal squamous cell carcinoma 1 (NY-ESO-1 : UniProt – P78358) native SLLMWITQC peptide, whose protein is part of a well-characterized group of cancer/testis antigens (CTAs). Normally, NY-ESO-1 expression is restricted to ger

Biotin-MAGE-A1 (278-286) is the N-ter biotinylated version of MAGE-A1 (278-286). Biotin-MAGE-A1 (278-286) can be used in the analysis of antigen-specific T cells. MAGE-A1 protein: MAGE-A1 (278-286) is an epitope of Melanoma Antigen Gene A1 expressed by tumors of different histological types such as on the surface of breast carcinoma cell and is a Cancer/Testis Antigens (CTA). MAGE-A1 is a tumor antigen expressed in 40% of melanoma and contains epitope for binding HLA-A*02:01 molecules and that are recognized by cytotoxic T cells. Applications of MAGE-A1 (278-286): MAGE-A1 (278-286) is used to stimulate specific cytotoxic T cells in PBMCs and to analyze by ELISPOT peptide epitope specificity and cytokine production like IFN-γ. Immunogenicity of MAGE-A1 (278-286) raised the possibility of developing anticancer immunotherapies or vaccinations. MAGE-A1 is also expressed in lung adenocarcinoma and studies suggest that MAGE-A1 may serve to develop Chimeric Antigen Receptor (CAR) T cell the

Biotin-MAGE-A2 (157-166) is the N-ter biotinylated version of MAGE-A2 (157-166). Biotin-MAGE-A2 (157-166) can be used in the analysis of antigen-specific T cells. MAGE-A2 protein: MAGE-A2 (157-166) is an epitope of Melanoma Antigen Gene A2 and is one of the most Cancer-Testis Antigens (CTA) overexpressed in tumors of different histological types, such as prostate cancer. Type of MAGE-A expressed in tumors cells varies according to the type of tumor. The expression of MAGE-A2 causes the proliferation of prostate cancer cells and decreases the chemosensitivity. Applications of MAGE-A2 (157-166): MAGE-A2 (157-166) is used to stimulate specific immune response, cytotoxic T cell response and to analyze the cytokine production in PBMCs by ELISPOT assay. In transgenic mouse, it has been demonstrated that MAGE-A2 (157-166) was capable of eliciting a CTL response presented by HLA-A*02:01 molecules. MAGE-A2 (157-166) has been reported to elicit CTL that could lyse tumor cell expressing both HL

SB-peptide offers the scrambled MSILWQLVT peptide that can be used as a negative control of NY-ESO-1 (157-165) C165V variant epitope studies. SB-peptide also offers NY-ESO-1 (157-165) C165V (see section NY-ESO-1 (157-165) C165V). HLA-A*02 Major Histocompatibility Complex (MHC) allele HLA-A*02 allele is expressed in class I Human MHC Leukocyte Antigens (HLA), that are cell surface receptors, presenting peptides to the immune system. If a non-self-peptide is recognized by cytotoxic T-cells in the blood, cell death will be initiated via apoptosis. NY-ESO-1 protein Peptides presented by MHC class I molecule, are usually between 7 and 11 amino acids, originating from proteins expressed by the cell. SLLMWITQV peptide differes from the New York esophageal squamous cell carcinoma 1 (NY-ESO-1 : UniProt – P78358) native SLLMWITQC peptide, whose protein is part of a well-characterized group of cancer/testis antigens (CTAs). Normally, NY-ESO-1 expression is restricted to germ cells