1597 Results for: "Biogems"

Supplier: Biogems

The LG.3A10 monoclonal antibody binds to CD27, 45kDA molecule in the Tumor Necrosis Factor Receptor (TNFR) superfamily. It is expressed on memory B cells, NK cells, mature T cells, and a subset of thymocytes. Cd27 is involved in the interactions between B and T cells through its ligand CD70. The LG.3A10 antibody is cross-reactive with human, mouse and rat CD27.

Supplier: Biogems

The OKT8 monoclonal antibody specifically reacts with human CD8α molecule, a tyPEI transmembrane glycoprotein of 32-34 kDa. CD8α is a member of the Ig superfamily, expressed as a homodimer (CD8αα) or as a heterodimer (CD8αβ). CD8+ αβ T lymphocytes express both CD8αα and CD8αβ, while some T lymphocytes and the natural killer cells express only the homodimers. CD8 binds to MHC class I and influences the development and the activation of T lymphocytes.OKT8, RPA-T8, and HIT8a antibodies do not compete with each other for binding to peripheral leukocytes, meaning that that they do not recognize the same epitoPEor block each other by steric hindrance.

Supplier: Biogems

The O323 monoclonal antibody specifically binds to the human CD27, which is a lymphocyte-specific member of the TNF/NGF-R family, expressed on a subset of human thymocytes and the majority of the mature T cells. CD27 is upregulated by T lymphocytes stimulation, and binds to CD70, enhancing the interaction between T and B lymphocytes. CD27 is a memory marker of B cells.

Supplier: Biogems

The 2.43 monoclonal antibody specifically reacts with mouse CD8 antigen. CD8a (the alpha chains) form heterodimers with CD8b (the beta chains) or homodimers (alpha-alpha), which occur as receptors on the surface of the majority of thymocytes. A subpopulation of mature T lymphocytes expresses the CD8 alpha beta (alpha beta TCR T cells), and a subpopulation of intestinal intraepithelial lymphocytes and dendritic cells express CD8a without CD8b. CD8 interacts with the mouse major histocompatibility complex class I (MHC class I) molecules on antigen-presenting cells or epithelial cells.

Supplier: Biogems

The OKT8 monoclonal antibody specifically reacts with human CD8α molecule, a tyPEI transmembrane glycoprotein of 32-34 kDa. CD8α is a member of the Ig superfamily, expressed as a homodimer (CD8αα) or as a heterodimer (CD8αβ). CD8+ αβ T lymphocytes express both CD8αα and CD8αβ, while some T lymphocytes and the natural killer cells express only the homodimers. CD8 binds to MHC class I and influences the development and the activation of T lymphocytes.OKT8, RPA-T8, and HIT8a antibodies do not compete with each other for binding to peripheral leukocytes, meaning that that they do not recognize the same epitoPEor block each other by steric hindrance.BG Violet 450 conjugate is an alternative to the Pacific Blue, eFluor 450, or BD Horizon V450 dyes. It is excited by the violet (405 nm) laser, with a peak emission of 450nm.

Supplier: Biogems

The O323 monoclonal antibody specifically binds to the human CD27, which is a lymphocyte-specific member of the TNF/NGF-R family, expressed on a subset of human thymocytes and the majority of the mature T cells. CD27 is upregulated by T lymphocytes stimulation, and binds to CD70, enhancing the interaction between T and B lymphocytes. CD27 is a marker of memory B cells.

Supplier: Biogems

The Hit8a monoclonal antibody reacts with the human CD8a molecule, a 32 kDa cell surface receptor expressed either as a heterodimer (CD8 α/β) or as a homodimer (CD8 α/α) on the majority of thymocytes, a subpopulation of mature T cells, and natural killer cells. CD8 interacts with the major histocompatibility complex class I (MHC class I) molecules on antigen-presenting cells or epithelial cells. The Hit8a antibody reacts with 13-48% of peripheral lymphocytes, 80% of thymocytes, and a subset of natural killer cells. HIT8a, RPA-T8, and OKT8 antibodies do not compete with each other for binding to peripheral leukocytes, meaning that that they do not recognize the same epitope or block each other by steric hindrance.

Supplier: Biogems

The 341 monoclonal antibody specifically reacts with the beta chain of the Rat CD8 molecule. The alpha and beta chains of the CD8 molecule form a heterodimer common on most thymocytes. The CD8 positive T cells of athymic rats and most NK cells express a homodimer composed solely of CD8a. It is reported that macrophages express CD8 alpha and beta chains for signal transduction. CD8 is an antigen co-receptor that interacts with MHC class I molecules on antigen-presenting cells.

Supplier: Biogems

The N418 monoclonal antibody specifically reacts with the integrin αx chain of the mouse CD11c, which is expressed on dendritic cells, CD4-/CD8+ intestinal intraepithelial lymphocytes (IEL) and some activated T lymphocytes. Low levels of CD11c were detected on mouse splenic natural killer cells and on the monocyte/macrophage lineage cells.CD11c expression is upregulated on IEL and T lymphocytes after activation. It binds to CD54, fibrinogen and iC3b and influences the leukocyte adhesive interactions. The N418 antibody binds to CD11c on splenic dendritic cells of the mouse in the T-dependent areas. It also contributes to the binding of iC3b.BG Violet 450 conjugate is an alternative to the Pacific Blue, eFluor 450, or BD Horizon V450 dyes. It is excited by the violet (405 nm) laser, with a peak emission of 450nm.

Supplier: Biogems

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.

Supplier: Biogems

The N418 monoclonal antibody specifically reacts with the integrin αx chain of the mouse CD11c, which is expressed on dendritic cells, CD4-/CD8+ intestinal intraepithelial lymphocytes (IEL) and some activated T lymphocytes. Low levels of CD11c were detected on mouse splenic natural killer cells and on the monocyte/macrophage lineage cells.CD11c expression is upregulated on IEL and T lymphocytes after activation. It binds to CD54, fibrinogen and iC3b and influences the leukocyte adhesive interactions. The N418 antibody binds to CD11c on splenic dendritic cells of the mouse in the T-dependent areas. It also contributes to the binding of iC3b.

Supplier: Biogems

The DREG-56 monoclonal antibody specifically reacts with human CD62L, also known as L-selectin and LECAM-1. It mediates the migration of lymphocytes to the site of inflammation and their return to the peripheral lymphoid tissues and to the HEV (high endothelial venules). CD62L is expressed on monocytes, NK cells, neutrophils, granulocytes, and subsets of T and B cells. It is reported that the DREG-56 antibody inhibits the binding of lymphocytes to HEV tissue in frozen peripheral tissue.

Supplier: Biogems

The RPA-2.10 monoclonal antibody specifically binds to human CD2, a 50 kDA type I transmembrane glycoprotein. CD2 is expressed on NK cells, thymocytes, T lymphocytes, and B cell subsets. CD2 is involved in cell-cell adhesion, T cell activation, and T cell signaling. Its ligand is CD58 and it is reported to bind to CD48, CD59, and CD15. The RPA-2.10 antibody is reported to be cross-reactive with pigs and non-human primates..

Supplier: Biogems

The 17A2 monoclonal antibody specifically reacts with the MouseT lymphocytes receptor (TCR) associated CD3 complex, resulting in cellular activation and proliferation. CD3 is expressed by thymocytes and mature lymphocytes, and contains γ, δ, and ε subunits, involved in the assembly, trafficking, and surface expression of T-cell receptor complex. The interaction between the T lymphocytes and the 17A2 antibody can be blocked by the 145-2C11 anti-CD3e antibody, demonstrating that the 17A2 antibody recognizes the CD3 ε chain.

Supplier: Biogems

The G4.18 monoclonal antibody specifically reacts with rat CD3, a T cell lineage marker and associated with the T cell receptor (TCR). CD3 is involved in antigen recognition, cell activation, and signal transduction and is found on subsets of NK-T, peripheral T, dendritic epidermal T, and thymocyte cells. Immobilized G4.18 antibody activates T cells in vitro and in vivo treatments of the G4.18 antibody prevents cardiac and skin allograft rejection.

Supplier: Biogems

The 145-2C11 monoclonal antibody reacts with mouse CD3e, the 20 kDa ε chain of the TCR complex. Together with the γ and δ subunits of CD3, the ε subunits are involved in the assembly, trafficking, and surface expression of T-cell receptor complex. CD3 is expressed on thymocytes, mature T cells, and natural killer T cells, and the ε chain enhances the antigen recognition.The 145-2C11 antibody binds to the TCR complex and, depending on the conditions, initiates T cells activation, proliferation, and apoptosis. The soluble antibody seems to block lysis of target cells by antigen-specific cytotoxic T lymphocytes. The 145-2C11 antibody does not cross-react with the rat leukocytes, and it is used as a phenotypic marker for mouse T lymphocytes.

Supplier: Biogems

The 145-2C11 monoclonal antibody reacts with mouse CD3e, the 20 kDa ε chain of the TCR complex. Together with the γ and δ subunits of CD3, the ε subunits are involved in the assembly, trafficking, and surface expression of T-cell receptor complex. CD3 is expressed on thymocytes, mature T cells, and natural killer T cells, and the ε chain enhances the antigen recognition.The 145-2C11 antibody binds to the TCR complex and, depending on the conditions, initiates T cells activation, proliferation, and apoptosis. The soluble antibody seems to block lysis of target cells by antigen-specific cytotoxic T lymphocytes. The 145-2C11 antibody does not cross-react with the rat leukocytes, and it is used as a phenotypic marker for mouse T lymphocytes.

Supplier: Biogems

The M1/69 monoclonal antibody specifically reacts with mouse CD24, variably glycosylated GPI-anchored membrane protein. CD24 is known as the Heat Stable Antigen (HAS or HsAG) and is found on epithelial cells, thymocytes, monocytes, erythrocytes, granulocytes, dendritic cells and lymphocytes to the exclusion of NK cells. It is useful in delineating the stages of lymphocyte development and is involved in the costimulation of CD4+ T cells by B cells. CD62P (P-Selectin) is the reported ligand of CD24.

Supplier: Biogems

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.

Supplier: Biogems

The UCHL1 monoclonal antibody specifically reacts with human CD45RO, a 180 kDa isoform of the leukocyte common antigen CD45. CD45RO is a transmembrane glycoprotein with tyrosine phosphatase activity and is expressed by majority of thymocytes, monocytes, granulocytes, and activated memory T lymphocytes. The subsets of peripheral T lymphocytes can be discriminated by using the CD45RO and CD45RA expressing cells.

Supplier: Biogems

The 15.2 antibody reacts with the 85-110 kDa intracellular adhesion molecule-1 (ICAM-1), a member of the Ig superfamily which acts as a ligand for the Lymphocyte Function-Associated Antigen-1 (LFA-1). ICAM-1 is also known CD 54 and is expressed on non-hematopoietic cells of vascular endothelial, thymic epithelial, fibroblasts lineages, and on hematopoietic cells like macrophages, mitogen-stimulated T-lymphoblasts, dendritic cells in tonsils, lymph nodes and Peyer’s patches, and germinal center B cells.Inflammatory mediators (IL-1, TNF, IFN-γ) enhance the production of ICAM-1 on fibroblasts and endothelial cells within few hours. Thus, ICAM-1 seems to be the marker of inflammatory reactions.

Supplier: Biogems

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.

Supplier: Biogems

The IM7 monoclonal antibody specifically reacts with all the isoforms and both alloantigens of the CD44 glycoprotein (Pgp-1, Ly-24). CD44 is expressed on hematopoietic and non-hematopoietic cells, bone marrow myeloid cells, memory T lymphocytes, periphery activated B cells, CD4+ T lymphocytes, and CD8+ T lymphocytes. The periphery B and T lymphocytes upregulate the expression of CD44. CD44 binds to hyaluronan molecules, acting as an adhesion molecule.The IM7 antibody inhibits collagen-induced arthritis in DBA/1 mice, prevents central nervous system inflammation associated with experimental autoimmune encephalomyelitis, but exacerbates the experimental autoimmune thyroiditis in CBA/J mice. The IM7 antibody also cross-reacts with dog, human, pig, horse, cat, and cow leukocytes.

Supplier: Biogems

The 10F.9G2 monoclonal antibody specifically reacts with mouse CD274, also known as B7-H1 or PD-L1, a 43 kDa glycoprotein of the B7 family of the immunoglobulin superfamily. CD274 is expressed on the B and T lymphocytes, natural killer cells, and dendritic cells. The receptor for the B7-H1 molecule is PD-1, which contains an Immunoreceptor Tyrosine-based Inhibitory Motif (ITIM), and is expressed on activated B and T cells. The interaction between CD274 and PD-1 seems to downregulate the T and B immune responses.

Supplier: Biogems

The 10F.9G2 monoclonal antibody specifically reacts with mouse CD274, also known as B7-H1 or PD-L1, a 43 kDa glycoprotein of the B7 family of the immunoglobulin superfamily. CD274 is expressed on the B and T lymphocytes, natural killer cells, and dendritic cells. The receptor for the B7-H1 molecule is PD-1, which contains an Immunoreceptor Tyrosine-based Inhibitory Motif (ITIM), and is expressed on activated B and T cells. The interaction between CD274 and PD-1 seems to downregulate the T and B immune responses.

Supplier: Biogems

The LTF-2 monoclonal antibody is used as an Isotype Control immunoglobulin for rat IgG2b antibodies.

Supplier: Biogems

The AFS98 monoclonal antibody specifically reacts with the mouse CD115 molecule, a 150 kDa receptor for the colony stimulating factor (CSF-1) or macrophage CFS (M-CFS), expressed by some epithelial cells, monocytes, osteoclasts, and macrophages. The colony stimulating factor-1 regulates the proliferation and the differentiation of the monocytic lineage cells. The AFS98 antibody can be used to identify myeloid lineage cells.

Supplier: Biogems

The 10F.9G2 monoclonal antibody specifically reacts with mouse CD274, also known as B7-H1 or PD-L1, a 43 kDa glycoprotein of the B7 family of the immunoglobulin superfamily. CD274 is expressed on the B and T lymphocytes, natural killer cells, and dendritic cells. The receptor for the B7-H1 molecule is PD-1, which contains an Immunoreceptor Tyrosine-based Inhibitory Motif (ITIM), and is expressed on activated B and T cells. The interaction between CD274 and PD-1 seems to downregulate the T and B immune responses.

Supplier: Biogems

The 2A3 antibody was obtained by hybridization of MouseNS-1 myeloma cells with spleen cells harvested from BALB/c mice immunized with phytohemagglutinin-activated human T cells. The 2A3 antibody is a CD25 clone and used as an Isotype Control for rat IgG2a antibodies.

Supplier: Biogems

The M5/114.15.2 monoclonal antibody or (M5/114) is specific for the mouse major histocompatibility complex class II, specific for the I-A and I-E subregion-encoded glycoproteins (alloantigens I-Ab, I-Ad, I-Aq, I-Ed, and I-Ek, but not the I-Af, I-Ak, nor I-As antigens). The antibody also reacts with cells from the H-2p or H-2r haplotypes mice. The polymorphic determinant represented by the mouse major histocompatibility complex class II (MHC Class II) is expressed by the immune cells bearing the specified alloantigens, like T and B lymphocytes, monocytes, dendritic cells, and macrophages. The antibody doesn’t react with the NOD H-2g7 haplotype alloantigens. M5/114 mAb inhibits I-A-restricted T cell responses of the Haplotypes H-2b, H-2d, H-2q, and H-2u.