1597 Results for: "BIOGEMS INTERNATIONAL INC."

Supplier: BIOGEMS INTERNATIONAL INC.

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.

Supplier: BIOGEMS INTERNATIONAL INC.

The 34-1-2S monoclonal antibody specifically reacts with the mouse H-2k/H2D MHC class I alloantigens, which are involved in antigen presentation to T cells. The 34-1-2S antibody cross-reacts with the b, p, q, r, and s haplotypes.

Supplier: BIOGEMS INTERNATIONAL INC.

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.

Supplier: BIOGEMS INTERNATIONAL INC.

The G7 monoclonal antibody specifically reacts with mouse CD90, also known as thymus cell antigen-1 (Thy-1). CD90 is a 25-35 kDA GPI-anchored protein is the smallest member of the Ig superfamily. CD90 is expressed on thymocytes, neurons, hematopoietic stem cells, and T cells. It plays a role in T cell signal transduction and adhesion. The G7 antibody is reported to stimulate IL-2 secretion and T cell proliferation.

Supplier: BIOGEMS INTERNATIONAL INC.

The Hit3a 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 HIT3a antibody cross-links with the TCR complex, initiating the cellular activation and proliferation, but it cannot be used for intracellular CD3 staining, as it is able to stain only the surface CD3 complex.

Supplier: BIOGEMS INTERNATIONAL INC.

The 17A2 monoclonal antibody specifically reacts with the mouse T 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 INTERNATIONAL INC.

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 INTERNATIONAL INC.

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 INTERNATIONAL INC.

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 INTERNATIONAL INC.

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 INTERNATIONAL INC.

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 INTERNATIONAL INC.

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 INTERNATIONAL INC.

The 4H11 monoclonal antibody specifically reacts with the Class III epitope of CD34 (mucosialin), a transmembrane phosphoglycoprotein. It is expressed on most hematopoietic progenitors, pluripotent stem cells and tumor cells.

Supplier: BIOGEMS INTERNATIONAL INC.

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 INTERNATIONAL INC.

The 1D3 monoclonal antibody specifically reacts with mouse CD19, a 95 kDa transmembrane glycoprotein, a member of the Ig superfamily and a B cell-lineage differentiation antigen expressed by all the B lymphocyte development stages, except for the terminally differentiated plasma cells. CD19 associates with CD21, CD81 and MHC class II to form a multi-molecular complex that initiates the mature B lymphocyte activation by interaction with the B-cell receptors. CD 19 enhances the B cell proliferation, development and activation, and the maturation of memory B cells. In CD19-deficient mice, the generation and maturation of B lymphocytes in the bone marrow and periphery are affected.

Supplier: BIOGEMS INTERNATIONAL INC.

The TS2/16 moncolonal antibody specifically reacts with human CD29 (Integrin beta1), a 130 kDA type I glycoprotein expressed on hematopoietic and non-hematopoietic cells. It forms the VLA-(1-6) molecules with integrin alpha-(1-6) and is involved in the adhesion between cell-cell and cell-matrix. The TS2/16 antibody has been found to activate beta 1 integrins.

Supplier: BIOGEMS INTERNATIONAL INC.

The 1D3 monoclonal antibody specifically reacts with mouse CD19, a 95 kDa transmembrane glycoprotein, a member of the Ig superfamily and a B cell-lineage differentiation antigen expressed by all the B lymphocyte development stages, except for the terminally differentiated plasma cells. CD19 associates with CD21, CD81 and MHC class II to form a multi-molecular complex that initiates the mature B lymphocyte activation by interaction with the B-cell receptors. CD 19 enhances the B cell proliferation, development and activation, and the maturation of memory B cells. In CD19-deficient mice, the generation and maturation of B lymphocytes in the bone marrow and periphery are affected.

Supplier: BIOGEMS INTERNATIONAL INC.

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 INTERNATIONAL INC.

The 1D3 monoclonal antibody specifically reacts with mouse CD19, a 95 kDa transmembrane glycoprotein, a member of the Ig superfamily and a B cell-lineage differentiation antigen expressed by all the B lymphocyte development stages, except for the terminally differentiated plasma cells. CD19 associates with CD21, CD81 and MHC class II to form a multi-molecular complex that initiates the mature B lymphocyte activation by interaction with the B-cell receptors. CD 19 enhances the B cell proliferation, development and activation, and the maturation of memory B cells. In CD19-deficient mice, the generation and maturation of B lymphocytes in the bone marrow and periphery are affected. 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 INTERNATIONAL INC.

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 INTERNATIONAL INC.

The 2B11 monoclonal antibody specifically reacts with mouse CD184 (CXCR4or Fusin), a seven-transmembrane G-protein-coupled receptor. It is expressed by astrocytes, B cells, T cells, monocytes, neutrophils, neurons, and hematopoietic cell types. CD184 is a coreceptor for X4 HIV-1.The monoclonal 2B11 antibody recognizes the amino terminus of CD184 and has functional activity.

Supplier: BIOGEMS INTERNATIONAL INC.

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 INTERNATIONAL INC.

The HTA125 monoclonal antibody specifically reacts with human CD284, a 110kDA type I transmembrane signaling molecule known as the Toll-like Receptor 4 (TLR4). CD284 is an important molecule in the innate immunity response to bacterial lipoproteins. It is expressed by monocytes, macrophages, and endothelial cells. The HTA125 antibody can block Lipopolysaccharide-induced cytokine production and immunoprecipitate human TLR4.

Supplier: BIOGEMS INTERNATIONAL INC.

The TLR3.7 monoclonal antibody specifically reacts with human CD283 (TLR3), a type I transmembrane signaling receptor containing IL-1 receptor like intracellular domain and leucine-rich repeats (LRR) in the extracellular domain. It is expressed by dendritic cells and recognize double-stranded RNA and polyinosine-polycytidylic acid. Upon ligand binding, CD283 induces type I interferon production and activation of the nuclear factor kappa-light-chain-enhancer of activated B cells complex (NF-κB).

Supplier: BIOGEMS INTERNATIONAL INC.

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 INTERNATIONAL INC.

The ISA-3 monoclonal antibody specifically reacts with human CD278 or Inducible COStimulatory molecule (ICOS), a 47-60 kDA homodimeric glycoprotein also known as H4, AILIM, and CRP-1. It is expressed on activated T cells and a group of thymocytes and is involved in the proliferation, activation, and cytokine production of T cells. When plate-bound, the ISA-3 antibody induces the production of IL-4,5,10 in T cells.

Supplier: BIOGEMS INTERNATIONAL INC.

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 INTERNATIONAL INC.

The RB6-8C5 monoclonal antibody reacts with the mouse Ly-6G (also known as Gr-1). The Ly-6G protein is a myeloid differentiation antigen of 21-25 kDa, expressed in a regulated manner by the myeloid lineage in the bone marrow, where the level of antigen expression is correlated with the granulocyte maturation and differentiation. In the bone marrow, the antigen is not expressed by the erythroid cells. From the peripheric cells, RB6-8C5 binds with monocytes, neutrophils and eosinophils.As a marker for the mouse monocytes, macrophages and granulocytes, the RB6-8C5 antibody is usually combined with M1/70, a macrophage labeling antibody (Anti-CD11b), for phenotypic analysis.

Supplier: BIOGEMS INTERNATIONAL INC.

The C1.18.4 monoclonal antibody is used as an Isotype Control for MouseIgG2a antibodies. It has unknown specificity and occurred spontaneously in a C3H mouse.

Supplier: BIOGEMS INTERNATIONAL INC.

The EM92 monoclonal antibody reacts with human and mouse Oct 3/4, a POU family transcription factor. Oct 3/4 is encoded by the Pou5F1 gene and expressed on undifferentiated cells and lost in adult tissue. Fbx15, FGF-4, NANOG, Rex1, and UTF1 expression is regulated with Oct 3/4 and in many cases gene expression is regulated in concert with Sox2.