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Catalog Number: (75843-998)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The RPA-T4 monoclonal antibody specifically binds to the CD4 receptor for the human immunodeficiency virus (HIV). CD4 is a 59 kDa single-chain transmembrane glycoprotein that expressed on the surface of most of the thymocytes, T-helper cells, and in low levels on monocytes and macrophages. CD4 is a co-receptor in the antigen-induced T cell activation, together with the MHC class II. The RPA-T4 antibody is capable of blocking HIV binding and inhibiting syncytium formation, by binding to the D1 domain of the CD4 antigen. The OKT4 and the RPA-T4 monoclonal antibodies recognize different epitopes of CD4 and they do not exhibit cross-block binding.

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Catalog Number: (75842-496)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The 17B7 monoclonal antibody specifically binds to mouse and rat IL-17A, a pro-inflammatory cytokine. It is produced by T helper 17 (Th17) cells, a unique subset of IL-23 dependent CD4+ T cells. Interleukin-17A is highly expressed in transplant rejection, asthma, psoriasis, and multiple sclerosis, and enhances the expression of ICAM-1 in human fibroblasts. The homodimer is expressed by activated peripheral CD4+ T lymphocytes. The Interleukin-17A binds to the IL-17 receptors (IL-17R) expressed by mast cells, monocytes and macrophages, fibroblasts, and endothelial and epithelial cells.

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Catalog Number: (75842-582)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The DATK32 monoclonal antibody specifically reacts with an epitoPEof the Mouseα4β7 integrin (LPAM-1). The two subunits of the LPAM-1 heterodimer are the 154 kDa α4 and the 130 kDa β7. Most mature lymphocytes, a subset of bone marrow cells, and some of the thymic cells express the α4β7 integrin heterodimer. α4β7 enhances the transendothelial migration of lymphocytes, and interacts with several ligands (fibronectin, CD106, and MAdCAM-1). The interaction of DATK32 with the α4β7 induces the α4β7-dependent lymphocyte aggregation and inhibits LPAM-1-dediated cell adhesion.

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Catalog Number: (75843-458)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The 4S.B3 is a neutralizing antibody that binds with the human Interferon-gamma (IFN-γ) protein, a 15 -17 kDa cytokine with significant antibacterial, antiviral, and antitumoral properties. When secreted by natural killer cells and by natural killer T lymphocytes, it regulates the immune response and supports adaptive immunity when produced by Th1 or CD8+ T lymphocytes. IFN-γ plays an important role in the activation, the growth, and the differentiation of the macrophages, B and T lymphocytes, and natural killer cells. It interacts synergically with other cytokines, such as TNF-α, to inhibit proliferation of normal and transformed cells. IFN- γ is the primary cytokine that defines Th-1 cells. The biological activity of IFN-γ is not affected by glycosylation.

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Catalog Number: (75841-564)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The M1/70 monoclonal antibody specifically reacts with the 170 kDa αM integrin chain of mouse CD11b from the Mac-1 integrin (CD11b/CD18). Mac-1 binds to C3bi, CD54 (ICAM-1), and fibrinogen, and it is expressed by granulocytes, macrophages, NK cells, myeloid-derived dendritic cells, microglia, activated lymphocytes, and mouse B-1 cells. The expression is up-regulated on activated neutrophils at the same time that L-selectin is shed from the cell surface. The M1/70 antibody is used for the detection of monocytes, granulocytes, and a subset of natural killer cells in human peripheral blood.M1/70 blocks C3bi binding and cell adherence, but not cell-mediated lysis and it cross-reacts with human CD11b.

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Catalog Number: (75843-376)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The Avas12a1 monoclonal antibody specifically reacts with mouse CD309, also known as fetal liver kinase-1 (Flk-1) or the vascular endothelial growth factor receptor 2 (VEGFR2). CD309 is a receptor for VEGF and VEGFC and is expressed in endothelial cells in embryonic and adult tissue and a requirement for the development of vascular endothelial and hematopoietic cells.

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Catalog Number: (75843-708)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The 2D10.4 antibody reacts with human CD80, also known as B7-1, a 55 kDa type I transmembrane protein ligand for CD152 (CTLA-4) and for CD28, a co-stimulatory receptor for the T cell receptor (TCR). CD28 also binds a second B7 ligand known as CD86 (B7-2). Both CD80 and CD86 are expressed on activated B cells and antigen-presenting cells. These ligands trigger CD28 signaling in concert with TCR activation to drive T cell proliferation, induce high-level expression of IL-2, impart resistance to apoptosis, and enhance T cell cytotoxicity. The interaction / co-stimulatory signaling between the B7 ligands and CD28 or CTLA-4 provides crucial communication between T cells and B cells or APCs to coordinate the adaptive immune response.

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Catalog Number: (75844-156)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The A20 monoclonal antibody reacts with the leukocytes of the CD45.1-expressing mouse strains (DA, SJL/J, RIII, and STS/A). It does not cross-react with cells that express CD45.2. The CD45 molecule is a member of the Protein Tyrosine Phosphatase (PTP) family, because its intracellular region contains two PTP domains. The extracellular region’s variability is caused by different levels of glycosylation, and the splicing of the 4, 5, and 6 exons. The isoforms found in the mouse strains depend on the activation state, maturation stage and cell type, and are very important in B and T lymphocytes antigen receptor signal transduction. The A20 antibody inhibits some of the B lymphocytes responses, from CD45.1-expressing mice, to lipopolysaccharides and antigens.

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Catalog Number: (75842-536)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The GARP5 monoclonal antibody specifically reacts with human Glycoprotein A Repetitions Predominant (GARP, also known as LRRC32 or Garpin) molecule, a 80 kDa transmembrane glycoprotein expressed on the cell surface. GARP is expressed in activated Treg cells, placenta, pancreas, liver, skeletal muscle, heart, lung, and kidney, and it acts as a receptor for latent TGF-β, which down-regulates the Treg cells action. 

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Catalog Number: (75841-902)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The HI98 monoclonal antibody specifically reacts with CD15, a 220 kDa carbohydrate moiety also known as SSEA-1, Lewis 3-fucosyl-N-acetyllactosamine (3-FAL). CD15 is expressed on most granulocytes and monocytes to the exclusion of lymphocytes and basophils. It is involved in cell adhesion, chemotaxis, and phagocytosis.

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Catalog Number: (75843-938)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The OKT4 monoclonal antibody specifically binds to the CD4 receptor for the human immunodeficiency virus (HIV). CD4 is a 59 kDa single-chain transmembrane glycoprotein that expressed on the surface of most of the thymocytes, T-helper cells, and in low levels on monocytes and macrophages. CD4 is a co-receptor in the antigen-induced T cell activation (together with the MHC class II). The OKT4 and the RPA-T4 monoclonal antibodies recognize different epitopes of CD4 and they do not exhibit cross-block binding.

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Catalog Number: (75843-898)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The SK7 monoclonal antibody specifically reacts with the ε chain of the CD3/T lymphocyte antigen receptor complex. The CD3 complex contains γ, δ, and ε chains, and it is part of the TCR complex, expressed by all mature T lymphocytes and by the thymocyte lineage. CD3 enhances the antigen recognition by signal transduction. The SK7 antibody is reported to have a mitogenic effect on the majority of peripheral blood T cells in the presence of functional monocytes.

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Catalog Number: (75843-078)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The H35-17.2 monoclonal antibody specifically reacts the mouse cd8 beta, a 32 kDa chain also known as Ly-3 and Lyt-3. CD8 is a T cell surface antigen co-receptor that interacts with MHC class I molecules on antigen presenting cells. It is expressed as a heterodimer with the alpha cd8 chain. The H35-17.2 antibody blocks T cell-mediated cytolysis of allogeneic lymphoma cells.

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Catalog Number: (75842-924)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The OKT4 monoclonal antibody specifically binds to the CD4 receptor for the human immunodeficiency virus (HIV). CD4 is a 59 kDa single-chain transmembrane glycoprotein that expressed on the surface of most of the thymocytes, T-helper cells, and in low levels on monocytes and macrophages. CD4 is a co-receptor in the antigen-induced T cell activation (together with the MHC class II). The OKT4 and the RPA-T4 monoclonal antibodies recognize different epitopes of CD4 and they do not exhibit cross-block binding.

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Catalog Number: (75844-276)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The CD28.2 monoclonal antibody specifically binds with the human 44 kDa homodimeric trans-membrane glycoprotein CD28, expressed on the surface of most mature T lymphocytes, plasma cells, and thymocytes. CD28 is a ligand for B7-1 (CD80) and B7-2 (CD86), a co-stimulator of T lymphocytes, and enhances the interaction between T and B lymphocytes. It has been reported that the T lymphocytes stimulation to produce IL-2 depends on the monoclonal antibody involved, which suggests that the CD28 molecule presents some subregions with distinct functions. The CD28.2 antibody induces Ca2+ influx in Jurkat T lymphocytes. Other studies have shown that CD28 is involved in the signal transduction.

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Catalog Number: (75841-862)

Supplier: BIOGEMS INTERNATIONAL INC.

Description: The RA3-6B2 monoclonal antibody specifically reacts with a 220 kDa exon A-restricted epitope on the extracellular domain of mouse CD45 glycoprotein. CD45R/B220 is expressed on all the development stages of B cells, and at a low level on plasma cells and a subset of memory B cells. Low levels of CD45R/B220 are also expressed by some activated T lymphocytes, natural killer cell progenitors in the bone marrow, lymphokine activated killer cells (LAK), T lymphocytes of lpr/lpr mutant mouse, apoptotic T cells of mice injected with bacterial superantigens, and macrophage progenitors in fetal liver.The CD45 molecule is a member of the Protein Tyrosine Phosphatase (PTP) family, because its intracellular region contains two PTP domains. The extracellular region’s variability is caused by different levels of glycosylation, and the splicing of the 4, 5, and 6 exons. The isoforms found in the mouse strains depend on the activation state, maturation stage and cell type, and are very important in B and T lymphocytes antigen receptor signal transduction.The RA3-6B2 antibody inhibits in vivo B lymphocytes responses and enhances isotype switching during in vitro B lymphocyte responses.

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