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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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Supplier: Southern Biotechnology

Description: CD44, also known as phagocytic glycoprotein-1 (Pgp-1), exists as a large number of different isoforms resulting from alternative RNA splicing. The major isoform expressed on lymphocytes, myeloid cells, and erythrocytes is a glycosylated type I transmembrane protein. Other variable isoforms containing glycosaminoglycans have molecular weights ranging from 110 to 250 kDa and are widely expressed on hematopoietic and non-hematopoietic cells. CD44 contributes to the adhesion of leukocytes to endothelial cells, stromal cells, and the extracellular matrix. It also plays a functional role in cell migration, lymphocyte homing, and adhesion during hematopoiesis and lymphocyte activation.

Catalog Number: (103265-580)

Supplier: Southern Biotechnology

Description: Goat F(ab’)2 Anti-Mouse Kappa-HRP antibody for use in ELISA, immunohistochemistry, and ELISpot assays.

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Catalog Number: (100243-368)

Supplier: Southern Biotechnology

Description: The IL-2 receptor (IL-2R) exists in three alternative forms made up from the individual components of CD25, CD122, and CD132. CD25 represents the low affinity α chain of the IL-2R, a type I transmembrane glycoprotein containing two CCP domains. It is rich in O-linked carbohydrates and has a short cytoplasmic tail. CD25 is expressed on activated T cells, B cells, NK cells, and monocytes of all mouse strains tested. Expression of CD25 on activated T lymphocytes is transitory and endogenously regulated. CD25 is expressed on precursor B cells in bone marrow. Its expression is initiated by functional rearrangement and expression of IgM heavy chain genes and is down-regulated when immature B cells mature and express IgD. It is expressed at a higher level on CD4+CD8+ thymocytes. It is also expressed on cultured epidermal Langerhans cells. The biochemical features of murine CD25 have been characterized in detail. The 3C7 monoclonal antibody reacts with an epitope of CD25 which is distinct from that recognized by clone 7D4. 3C7, used in combination with 7D4 in culture, results in higher levels of inhibition of proliferation driven by IL-2 and generation of alloreactive CTL than either of these monoclonal antibodies alone.

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Catalog Number: (100246-262)

Supplier: Southern Biotechnology

Description: CD43, a member of the sialomucin family of cell surface receptors, is a 95-135 kDa type I transmembrane glycoprotein whose variability in molecular weight is dependent upon the nature of the extracellular O-glycans. It is the major sialoglycoprotein on thymocytes, T cells, and neutrophils. It is also present on activated B cells, plasma cells, NK cells, granulocytes, monocytes, macrophages, platelets, and bone marrow hematopoietic stem cells. CD43, which binds to ICAM-1 (CD54), appears to function as an anti-adhesion molecule, inhibiting T cell interactions including T cell killing, and by increasing the threshold for T cell activation.

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Catalog Number: (101442-944)

Supplier: Southern Biotechnology

Description: CD8 is a 33 kDa transmembrane glycoprotein expressed as either a CD8αα homodimer or CD8αβ heterodimer. It is expressed on the “cytotoxic/suppressor” subpopulation of peripheral T cells. CD8 functions primarily as a coreceptor with MHC class I-restricted TCR’s in antigen recognition.

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Catalog Number: (100242-754)

Supplier: Southern Biotechnology

Description: Purified Goat F(ab’)2 Anti-Mouse IgG3 antibody with minimal reactivity to human proteins for use in ELISA, flow cytometry, and immunocytochemistry assays.

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Catalog Number: (100245-704)

Supplier: Southern Biotechnology

Description: APC Anti-Human IgG Fc antibody for use in flow cytometry assays.

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Catalog Number: (101442-514)

Supplier: Southern Biotechnology

Description: Mouse IgG2b-APC/CY5.5 for use as a control in flow cytometry assays.

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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: (100244-198)

Supplier: Southern Biotechnology

Description: Goat Anti-Human Ig-Biotin antibody for use in ELISA, flow cytometry, immunocytochemistry, western blotting, and multiplex assays.

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Catalog Number: (103264-806)

Supplier: Southern Biotechnology

Description: Goat Anti-Human IgG(H+L)-Biotin antibody with minimal reactivity to rabbit, mouse, rat, bovine, horse, hamster, goat, sheep, chicken, and guinea pig serum proteins for use in ELISA assays.

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Catalog Number: (103259-998)

Supplier: Southern Biotechnology

Description: Goat Anti-Human Kappa-Alexa Fluor 555 antibody for use in immunohistochemistry / immunocytochemistry and western blotting assays.

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Catalog Number: (100243-816)

Supplier: Southern Biotechnology

Description: The CD45 antigen is an essential regulator of leukocyte activation and development and is now known to be a protein tyrosine phosphatase, e.g., CD45 is able to dephosporylate the Src family of protein kinases. This activity is known to be required for signal transduction induced by T and B cell antigen receptor engagement, cytokine signaling, and Fc receptor stimulation. The functional state of CD45 also has a pronounced effect on lymphocyte development. CD45 exists in multiple forms, such as the restricted variants (CD45R; see companion products 1660, 1665, 1675, 1685 and 1820) and as allelic forms CD45.1 (Ly-5.1) and CD45.2 (Ly-5.2). The specificity of antibodies to CD45.1 and CD45.2 has been exploited in studies where resolution of donor and recipient cells is essential, such as in gene therapy or bone marrow transplantation. The monoclonal antibody 104 recognizes CD45 (leukocyte common antigen) on all leukocytes of mouse strains expressing the CD45.2 allotype (e.g., A, AKR, BALB/c, CBA/Ca, CBA/J, C3H/He, C57BL, C57BR, C57L, C58, DBA/1, DBA/2, NZB, SWR, 129).

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Catalog Number: (100244-754)

Supplier: Southern Biotechnology

Description: Goat Anti-Rabbit IgG-TRITC antibody for use in immunohistochemistry / immunocytochemistry assays.

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