You Searched For: OPTEM

Catalog Number: (100242-802)

Supplier: Southern Biotechnology

Description: Biotin Anti-Mouse IgM antibody for use in ELISA, flow cytometry, immunohistochemistry, western blotting, and ELISpot assays.

Sale

Catalog Number: (103264-894)

Supplier: Southern Biotechnology

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

Sale

Catalog Number: (100246-536)

Supplier: Southern Biotechnology

Description: CD107b, also known as lysosomal-associated membrane protein 2 (LAMP-2), 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. CD107b is expressed in lysosomal/endosomal membranes and on the surface of activated platelets and some tumor cell lines including U937 and KG1a. LAMP-2 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.

Sale

Catalog Number: (100243-858)

Supplier: Southern Biotechnology

Description: NK1.1, a member of the NKR-P1 family of cell surface receptors, is a type II integral membrane glycoprotein with a C-type lectin domain. It is expressed as a disulfide-linked homodimer on all NK cells as well as subsets of thymocytes and peripheral T lymphocytes in selected strains of mice (e.g., C57BL/6, NZB, and CE). NK1.1 mediates cellular activation and differentiation, and is thought to have a particular role in generating Th2 cells. This product does not react with NK cells of BALB/c mice.

Sale

Catalog Number: (100244-104)

Supplier: Southern Biotechnology

Description: The “classical” MHC Class I molecules are histocompatibility antigens encoded by the H-2 gene complex and consist of heterodimers of highly polymorphic α chains noncovalently associated with the invariant β2-microglobulin. These antigens are expressed on most nucleated cells but expression varies on different cell types. MHC Class I molecules present endogenously synthesized peptides to CD8+ T lymphocytes, which are usually cytotoxic T cells. MHC Class I antigens expressed on thymic epithelial cells regulate the positive and negative selection of CD8+ T cells during T cell ontogeny. The monoclonal antibody 34-1-2S binds to a common determinant in the α3 domains of H-2Kd and H-2Dd in the presence or absence of β2 microglobulin. It cross reacts with the α3 domain of H-2Kb.

Sale

Catalog Number: (103264-628)

Supplier: Southern Biotechnology

Description: The αβ TCR is expressed on T lymphocytes of all mouse strains tested. The H57-597 monoclonal antibody does not react with γδ TCR-bearing cells. Plate-bound or soluble H57-597 activates αβ TCR-bearing T cells. In vitro and in vivo, H57-597 can induce immature thymocytes to undergo apoptosis. In vivo administration of H57-597 has been shown to deplete αβ TCR-bearing cells to near completion and prevent graft rejection.

Sale

Catalog Number: (100245-172)

Supplier: Southern Biotechnology

Description: Purified Rabbit Anti-Mouse IgG(H+L) antibody with minimal reactivity to human proteins for use in ELISA, flow cytometry, immunocytochemistry, and western blotting assays.

Sale

Catalog Number: (100244-322)

Supplier: Southern Biotechnology

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

Sale

Catalog Number: (100245-444)

Supplier: Southern Biotechnology

Description: The monoclonal antibody TCR-2 precipitates a CD3-associated heterodimer of Mr 90 kDa (two bands of Mr 50 kDa and 40 kDa upon reduction) on chicken peripheral blood T cells. Deglycosylation of the heterodimer yields two polypeptides of Mr 34 kDa and 29 kDa. In the chicken, two distinct subpopulations of αβ T cells appear in the thymus subsequent to the appearance of γδ T cells. These subpopulations, originally denoted as TCR2 and TCR3, arise sequentially in the thymus during ontogeny and are now known to represent two distinct Vβ families, Vβ1 and Vβ2, respectively. The TCR-2 monoclonal antibody reacts with approximately 40% of thymocytes, 40-50% of blood mononuclear cells, and 40% of splenocytes in the chicken. Two-color immunofluorescence has revealed that most of the TCR2+ thymocytes express both CD4 and CD8 antigens. The TCR2+ cells in blood were found to express either CD4 (74 ± 2%) or CD8 (26 ± 4%). TCR2+ cells in the spleen also express either CD4 (37 ± 1%) or CD8 (64 ± 4%). Surprisingly, a relatively large subpopulation of CD8+ cells in the spleen are negative for TCR2. This observation led to the demonstration that 71 ± 6% of the TCRγδ+ cells in the spleen express CD8.

Sale

Catalog Number: (100244-354)

Supplier: Southern Biotechnology

Description: Goat F(ab')2 Anti-Human Kappa-FITC antibody for use in flow cytometry, immunocytochemistry, and western blotting assays.

Sale

Catalog Number: (100246-334)

Supplier: Southern Biotechnology

Description: CD57 represents a 110 kDa oligosaccharide antigenic determinant present on a variety of polypeptides, lipids, and chondroitan sulfate proteoglycans. It is expressed on 7-35% of normal peripheral blood lymphocytes, including subsets of NK cells and CD8+ T lymphocytes. The carbohydrate is expressed on various cell adhesion molecules in the nervous system and is suggested to play a role in cell–cell and cell–substrate interactions.

Sale

Catalog Number: (100244-942)

Supplier: Southern Biotechnology

Description: Purified Rabbit F(ab')2 Anti-Goat IgG(H+L) antibody for use in ELISA, immunohistochemistry / immunocytochemistry, and western blotting assays.

Sale

Catalog Number: (100242-542)

Supplier: Southern Biotechnology

Description: Goat Anti-Mouse IgG(H+L)-FITC antibody with minimal reactivity to rat proteins for use in flow cytometry, immunohistochemistry / immunocytochemistry, and western blotting assays.

Sale

Catalog Number: (100244-088)

Supplier: Southern Biotechnology

Description: The “classical” MHC Class I molecules are histocompatibility antigens encoded by the H-2 gene complex and consist of heterodimers of highly polymorphic α chains noncovalently associated with the invariant β2-microglobulin. These antigens are expressed on most nucleated cells but expression varies on different cell types. MHC Class I molecules present endogenously synthesized peptides to CD8+ T lymphocytes which are usually cytotoxic T cells. MHC Class I antigens expressed on thymic epithelial cells regulate the positive and negative selection of CD8+ T cells during T cell ontogeny. The monoclonal antibody 28-14-8 binds to the α3 domain of H-2Db in the presence or absence of β2 microglobulin. It cross reacts with the α3 domain of H-2Ld, but not Kd or Dd, and with H-2Dq and/or Lq. The antibody has been shown to block H-2Ld-specific and H-2Ld-restricted antigen-specific lysis of target cells by cytotoxic T lymphocytes but it does not block recognition of H-2Ld-positive target cells by Ly-6G2-positive NK cells.

Sale

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.

Catalog Number: (100244-108)

Supplier: Southern Biotechnology

Description: The monoclonal antibody 34-5-8S reacts with a conformational epitope on H-2Dd MHC Class I found on the N-terminal domains of α1 and α2 chains when complexed with β2-microglobulin. The antibody does not react with H-2Dd α chains synthesized in vitro. Weak cross-reactivity with cells from mice of the H-2b, H-2q, and H-2s haplotypes has been observed by flow cytometric analysis. Reactivity with cells from mice of the H-2f, H-2k, H-2p, and H-2r haplotypes has not been observed. 34-5-8S has been reported to block the recognition of H-2Dd by Ly-49A+, Ly-49C+, and Ly-49G2+ natural killer cells.

Sale