You Searched For: OPTEM

Catalog Number: (103259-902)

Supplier: Southern Biotechnology

Description: CD11b, the integrin αM subunit, combines with CD18, the integrin β2 subunit, to form the integrin Mac-1, also known as complement receptor 3 (CR3), which mediates adhesion to C3bi and ICAM-1/CD54. Mac-1 is expressed at varying levels on granulocytes, macrophages, dendritic cells, NK cells, and B-1 cells in the peritoneal and pleural cavities. Mac-1 expression is rapidly up-regulated on neutrophils after activation and in the same time period that CD62L is shed from the cell surface. In addition to its role in binding C3bi on opsonized targets and mediation of the subsequent ingestion process, Mac-1 is important as an adhesion molecule in the transendothelial migration of monocytes and neutrophils. Cross-reaction of M1/70 to human CD11b has been observed on monocytes, polymorphonuclear leukocytes, and NK cells.

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Catalog Number: (100245-198)

Supplier: Southern Biotechnology

Description: Rabbit Anti-Rat IgG(H+L)-HRP antibody with minimal reactivity to human proteins for use in ELISA and immunohistochemistry assays.

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Catalog Number: (100242-610)

Supplier: Southern Biotechnology

Description: Goat Anti-Mouse Lambda-Biotin antibody for use in ELISA, flow cytometry, immunohistochemistry / immunocytochemistry, western blotting, immunoprecipitation, ELISpot, and separation assays.

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Catalog Number: (100242-858)

Supplier: Southern Biotechnology

Description: AP Anti-Mouse Kappa antibody for use in ELISA, immunohistochemistry, and western blotting assays.

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Catalog Number: (103265-122)

Supplier: Southern Biotechnology

Description: Purified Sheep Anti-Rat IgG(H+L) antibody for use in ELISA assays.

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Catalog Number: (100245-566)

Supplier: Southern Biotechnology

Description: Chicken Bu-1a, a product of the Bu-1a allele, is expressed on the cell surface as a disulfide-linked homodimer. In 10-week-old H.B15 and H.B2 chickens, Bu-1 is found on 85-90% of bursal cells, 2-8% of thymocytes, 15-27% of spleen cells, and 2-18% of peripheral blood cells. It is also expressed on subsets of macrophages and monocytes but not on granulocytes, erythrocytes, or thrombocytes. In chickens heterozygous for the Bu-1 alleles (Bu-1a/b), Bu-1a does not exhibit allelic exclusion. The monoclonal antibody 21-1A4 does not react with cells from CHA and H.B14ab strains by immunofluorescence.

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Catalog Number: (100245-346)

Supplier: Southern Biotechnology

Description: 1.0mg.

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Catalog Number: (103259-970)

Supplier: Southern Biotechnology

Description: CD103 is a member of the integrin series of adhesion molecules. This antigen defines a developmentally important subset of T cells, namely mucosal T cells including all IEL (intraepithelial lymphocytes) and ~20% of lamina propria T cells. Expression of CD103 is more restricted outside these mucosal organs appearing at lower levels on T cell subsets of the lymph node, dendritic epidermis, and periphery. In non-epithelial CD103+ T cells there is a bias toward expression on CD8+ cells. The 2E7 monoclonal antibody exhibits antigen immunoprecipitation patterns similar if not identical to the rat anti-mouse CD103 monoclonal antibody M290. 2E7 is reported to have signal-inducing activity in a redirected lysis assay and to costimulate IEL and CD8+ lymph node cells in conjunction with anti-TCR in vitro which runs counter to the usual inhibition of CTL by anti-integrins. This costimulatory activity is also shared by the monoclonal antibody M290. The property of costimulation is not unique to the mouse since the combination of anti-human αIEL plus anti-TCR will produce similar proliferation in human cells with the exception that CD8+ cells are not stimulated.

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Catalog Number: (100245-296)

Supplier: Southern Biotechnology

Description: Donkey Anti-Rabbit IgG(H+L)-PE antibody with minimal reactivity to human, mouse, and rat serum proteins for use in flow cytometry assays.

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Catalog Number: (101442-910)

Supplier: Southern Biotechnology

Description: CD19 is a type I transmembrane glycoprotein and a member of the immunoglobulin superfamily. It is expressed at all stages of B cell differentiation except terminally differentiated plasma cells. It is also present on the cell surface of follicular dendritic cells. CD19 associates with CD21, CD81, Leu 13 and/or MHC Class II molecules to form a signal transduction complex on the B cell surface. This signaling complex modulates the activation threshold for the B cell antigen receptor (BCR).

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Catalog Number: (101442-548)

Supplier: Southern Biotechnology

Description: Rat IgG2a-APC/CY7 for use as a control in flow cytometry assays.

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Catalog Number: (100243-906)

Supplier: Southern Biotechnology

Description: CD103 is a member of the integrin series of adhesion molecules. This antigen defines a developmentally important subset of T cells, namely mucosal T cells including all IEL (intraepithelial lymphocytes) and ~20% of lamina propria T cells. Expression of CD103 is more restricted outside these mucosal organs appearing at lower levels on T cell subsets of the lymph node, dendritic epidermis, and periphery. In non-epithelial CD103+ T cells there is a bias toward expression on CD8+ cells. The 2E7 monoclonal antibody exhibits antigen immunoprecipitation patterns similar if not identical to the rat anti-mouse CD103 monoclonal antibody M290. 2E7 is reported to have signal-inducing activity in a redirected lysis assay and to costimulate IEL and CD8+ lymph node cells in conjunction with anti-TCR in vitro which runs counter to the usual inhibition of CTL by anti-integrins. This costimulatory activity is also shared by the monoclonal antibody M290. The property of costimulation is not unique to the mouse since the combination of anti-human αIEL plus anti-TCR will produce similar proliferation in human cells with the exception that CD8+ cells are not stimulated.

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Catalog Number: (101190-344)

Supplier: Southern Biotechnology

Description: The chicken major histocompatibility complex (MHC), or B complex, consists of several clusters of highly polymorphic genes. Like their mammalian counterparts, the avian MHC exerts genetic influence over a variety of important biological functions such as immune response, disease resistance, growth and development, aging, and reproduction. Chicken MHC Class II genes, also known as the B-L subregion, of the chicken MHC encode cell surface glycoproteins that are homologous to mammalian Class II antigens. B-L antigens are structurally similar to mammalian Class II molecules in that they are noncovalently bound dimers of one heavy chain and one light chain. MHC Class II is primarily expressed on B cells and antigen presenting cells (APCs).

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Catalog Number: (103264-482)

Supplier: Southern Biotechnology

Description: HRP Anti-Mouse IgM antibody for use in ELISA, immunohistochemistry, and western blotting assays.

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Catalog Number: (100244-070)

Supplier: Southern Biotechnology

Description: The IL-2 receptor is a complex of three distinct polypeptide chains: (i) the α chain which binds IL-2 with low affinity; (ii) the β chain that binds IL-2 with high affinity; and (iii) the common γ chain (γc) that does not bind IL-2. The high affinity receptor complex is an α/β/γ heterotrimer with a Kd of 1.3 x 10-11 M. In mouse spleen, CD122 is expresed on ~30% of CD8+ cells and all NK cells but <1% of B cells and CD4+ T lymphocytes. In the thymus, its expression is confined to CD4-CD8+ single positive and CD4-CD8- double negative cells. Cytoplasmic regions of the IL-2R β chain are involved in IL-2-mediated cellular signaling and, via the interaction of IL-2 and its receptor complex, may be involved in the generation and differentiation of T lymphocytes. The monoclonal antibody 5H4 does not block IL-2 binding.

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Catalog Number: (100243-330)

Supplier: Southern Biotechnology

Description: CD24, also known as heat stable antigen, is a phosphatidylinositol-linked cell surface glycoprotein that is expressed at all stages of B cell development and on most thymocytes. The absence of expression from mature T cells is closely associated with their maturation from CD4+CD8+CD24+ thymocytes to either CD4+CD8-CD24- or CD4-CD8+CD24- T cells. CD24 is also present on mouse granulocytes, monocytes, Langerhans cells and erythrocytes. Its ligand is P-selectin (CD62P). CD24 may play a role in regulation of B cell proliferation and differentiation, and it has been proposed that heat stable antigen promotes homotypic adhesion between B lymphocytes.

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