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Catalog Number: (100243-652)

Supplier: Southern Biotechnology

Description: CD80 (B7-1) is a type I transmembrane glycoprotein and a member of the immunoglobulin superfamily of cell surface receptors. It is constitutively expressed by dendritic cells, monocytes, and peritoneal macrophages. Expression of CD80 on B cells is upregulated after activation by various means including stimulation by LPS, IL-4, and surface Ig receptor crosslinking with peak expression occurring between 48 and 72 hours post-activation. The interaction of CD80 with its ligands, CD28 and CD152 (CTLA-4), provides a potent costimulatory signal for T cells activated through the CD3/T cell receptor complex. The monoclonal antibody 1G10 blocks binding of CTLA-4 to CD80 but it does not block stimulation of T cells by natural antigen-presenting cells.

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Catalog Number: (100246-518)

Supplier: Southern Biotechnology

Description: CD107a, also known as lysosomal-associated membrane protein 1 (LAMP-1), is a heavily glycosylated type I transmembrane protein that constitutes the major sialoglycoproteins on lysosomal membranes. It is a ligand for galaptin, an S-type lectin present in extracellular matrix, through its recognition of acetyllactosamine oligosaccharide chains, and is a ligand for E-selectin-mediated cell adhesion. CD107a is expressed by activated T cells, macrophages, dendritic cells, activated platelets, tonsillar epithelium, and some tumor cell lines, including U937 and KG1a. It is also a widely expressed intracellular antigen. LAMP-1 may function in protecting the inner surface of the lysosomal membrane by forming a barrier to lysosomal hydrolases. The upregulation of both CD107a and CD107b on the surface of tumor cell lines has been associated with their enhanced metastatic potential where they may increase adhesion to extracellular matrix and endothelium.

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Catalog Number: (103264-652)

Supplier: Southern Biotechnology

Description: Ly-6G/Ly-6C, formerly known as the myeloid differentiation antigen Gr-1, is a GPI-anchored protein. In the bone marrow, the level of antigen expression is directly correlated with granulocyte differentiation and maturation. It is also transiently expressed on monocytes in the bone marrow. In the periphery, Ly-6G/Ly-6C is expressed predominantly on neutrophils.

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Catalog Number: (100245-810)

Supplier: Southern Biotechnology

Description: FITC Anti-Human IgG4 Fc antibody for use in flow cytometry, immunohistochemistry / immunocytochemistry, and western blotting assays.

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Catalog Number: (100244-218)

Supplier: Southern Biotechnology

Description: Goat Anti-Human IgM-HRP antibody for use in ELISA, immunohistochemistry / immunocytochemistry, western blotting, and ELISpot assays.

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Catalog Number: (103264-570)

Supplier: Southern Biotechnology

Description: Murine CD38, a type II transmembrane glycoprotein, is a bifunctional ectoenzyme capable of catabolizing nicotinamide adenine dinucleotide (NAD+) to cyclic ADP-ribose (cADPR), and then hydrolyzing cADPR to adenosine diphosphoribose (ADPR). It is expressed at high levels on the surface of peripheral B-lineage cells and at low density on germinal center B cells from unimmunized mice. It has also been reported to be expressed at moderate levels on NK cells, a proportion of peripheral T cells, and a subpopulation of thymocytes which are mostly TCRαβ+, CD4-, CD8-. Murine CD38 is also expressed by all Mac-1+ macrophages in the peritoneal cavities of unimmunized mice but not by unstimulated bone-marrow-derived macrophages. Monoclonal antibodies to CD38 have been shown to induce B and T cell proliferation, protect B cells from apoptosis, and inhibit B lymphopoiesis.

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Catalog Number: (100245-900)

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: (103264-538)

Supplier: Southern Biotechnology

Description: CD4 is a type I transmembrane glycoprotein expressed on most thymocytes and the helper/inducer subpopulation of mature T lymphocytes of all mouse strains tested. CD4 has also been detected at low density on pluripotent hematopoietic stem cells, bone marrow myeloid precursors, and intrathymic lymphoid precursors. The CD4 antigen functions as a co-receptor, interacting with class II major histocompatability complex (MHC) molecules in the recognition of foreign antigens by T cells. In vivo and in vitro treatment with the GK1.5 monoclonal antibody effectively depletes CD4+ cells. GK1.5 also blocks helper T cell responses to MHC class II antigens, including cytolysis, proliferation, allogeneic B cell help, and release of lymphokines.

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Catalog Number: (103265-450)

Supplier: Southern Biotechnology

Description: CD158e1 is a 70 kDa transmembrane glycoprotein and a killer cell immunoglobulin (Ig)-like receptor (KIR) that is expressed on a subset of natural killer cells and T cells. The monoclonal antibody DX9 is expressed on a subset of CD3-, CD56+ NK cells isolated from peripheral blood at varying levels (<0.1% to 61%) among individuals but not on thymocytes, B lymphocytes, granulocytes, or monocytes. Interactions with CD158e1 and certain MHC HLA-B antigens on a target cell inhibits cytotoxicity, possibly preventing target cell lysis and death. KIR and MHC class I interactions may regulate NK and T cell response to antigen stimulation.

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Catalog Number: (103265-220)

Supplier: Southern Biotechnology

Description: Alexa Fluor 488 Anti-Human IgG4 Fc antibody for use in flow cytometry, immunohistochemistry / immunocytochemistry, and western blotting assays.

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Catalog Number: (103264-192)

Supplier: Southern Biotechnology

Description: Low Endotoxin/Azide Free Rabbit IgG for use as a control in flow cytometry, immunohistochemistry / immunocytochemistry, western blotting, immunoprecipitation, ChIP, microarray, and in vivo / in vitro assays and as a standard in ELISA.

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Catalog Number: (100244-610)

Supplier: Southern Biotechnology

Description: PE Anti-Rat IgG2b antibody for use in flow cytometry assays.

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Catalog Number: (100243-948)

Supplier: Southern Biotechnology

Description: CD81, also known as TAPA-1, is an integral membrane protein expressed on a variety of cell types and has a high degree of sequence homology between human and mouse. CD81 is expressed on thymic stromal cells where it plays an important role in the transition of γδ+ T cells to more mature T cells with αβ T cell receptors. Immunohistochemical staining has revealed that its expression is localized to the subcapsular region of the thymus and, specifically, on cells that have distinct clustering patterns. It has been speculated that the ligand for CD81 is the pre-T cell receptor which is composed of a TCR β chain and glycoprotein pTα. The monoclonal antibody 2F7 can block thymocyte interaction with CD81 in vitro.

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Catalog Number: (100243-820)

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: (100245-696)

Supplier: Southern Biotechnology

Description: AP Anti-Human IgG Fc antibody for use in ELISA, western blotting, and ELISpot assays.

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Catalog Number: (100245-234)

Supplier: Southern Biotechnology

Description: Swine Anti-Goat IgG(H+L)-HRP antibody with minimal reactivity to human, mouse, and rat serum proteins for use in ELISA, immunohistochemistry, and western blotting assays.

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