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Catalog Number: (101442-740)
Supplier: Southern Biotechnology
Description: The monoclonal antibody I21/7 reacts with the α subunit of mouse and human CD11a, also known as LFA-1, and a member of the integrin family of cell adhesion molecules. The antigen is expressed on thymocytes, T and B lymphocytes, and on non-lymphoid cells in the bone marrow. CD11a appears to be an essential component for T-cell activation by antigen-presenting cells and is important for cell-mediated killing. Costimulatory signaling by LFA-1 is achieved by pairing with its ligand, CD54/ICAM-1.


Catalog Number: (100245-816)
Supplier: Southern Biotechnology
Description: Biotin Anti-Human IgG4 Fc antibody for use in ELISA, flow cytometry, immunohistochemistry / immunocytochemistry, western blotting, and multiplex assays.


Catalog Number: (103264-166)
Supplier: Southern Biotechnology
Description: Mouse IgG2b-HRP for use as a control in immunohistochemistry assays.


Catalog Number: (100243-248)
Supplier: Southern Biotechnology
Description: CD18 represents the common β2 integrin subunit that associates non-covalently with the α/β chains of CD11a, CD11b, and CD11c to form various integrin heterodimers. It is expressed strongly on lymphocytes and monocytes and weakly on granulocytes. CD18 mediates a variety of heterotypic and homotypic intercellular adhesion reactions and it regulates the ligand-binding activates of the various CD11/CD18 complexes. The monoclonal antibody C71/16 has not been reported to inhibit cell adhesion.


Catalog Number: (103265-474)
Supplier: Southern Biotechnology
Description: Keratins are a family of intermediate filament proteins that assemble into filaments through forming heterodimers of one type I keratin (keratins 9 to 23) and one type II keratin (keratins 1-8). The two keratin types share only 30% sequence homology. Keratins demonstrate tissue- and differentiation-specific expression profiles. Cytokeratin 19 is the smallest human keratin. It is found in many simple and some non-keratinizing stratified squamous epithelia and is often co-expressed with keratin 7. Cytokeratin 19 has been implicated as a marker for stem cells in some tissues such as hair follicles in the skin. Monoclonal antibodies to cytokeratin proteins can be useful markers for tumor identification and classification. The degree of cytokeratin 19 positivity in breast cancer distinguishes malignant from benign tumors. Cytokeratin 19 is also associated with malignant transformation in esophageal and pancreatic cancers.


Supplier: Southern Biotechnology
Description: CD19 is a monomeric transmembrane glycoprotein expressed at relatively constant levels throughout B cell development from early pro-B/pre-B cells (i.e. B220+/CD43+/HSA+) through fully differentiated B cell stages. Terminally differentiated plasma cells do not express CD19. In humans, the CD19 molecule on the surface of mature B cells associates with CD21 (CR-2) and CD81 (TAPA-1), and this multimolecular complex synergizes with surface immunoglobulin to provide signal transduction and promote cellular activation. All splenic and peritoneal IgM+ cells of both B-1 and B-2 lineages are CD19+, with B-1 cells expressing higher levels of CD19 than B-2 cells in these sites. Studies with CD19-deficient mice have suggested that this molecule may not be required for normal generation and maturation of B cells in the bone marrow. The monoclonal antibody 6D5 recognizes the same epitope as the published clone, 1D3.

Catalog Number: (103265-256)
Supplier: Southern Biotechnology
Description: CD54, also known as intercellular cell adhesion molecule-1 (ICAM-1), is a 90 kDa type I transmembrane glycoprotein and a member of the immunoglobulin superfamily. It exhibits a wide tissue distribution being expressed on both hematopoietic and non-hematopoietic cells. ICAM-1 expression on leukocytes is low but is rapidly upregulated upon activation. Expression on endothelium and other non-hematopoietic cells is strongly upregulated by inflammatory mediators. The ligands of CD54 are CD11a/LFA-1α and CD11b/Mac-1α. Endothelial CD54 contributes to the extravasation of leukocytes from blood vessels particularly in areas of inflammation. CD54 on antigen-presenting cells (APC) contributes to antigen-specific T cell activation presumably by enhancing interactions between T cells and APC.

Catalog Number: (100244-618)
Supplier: Southern Biotechnology
Description: HRP Anti-Rat IgG2c antibody for use in ELISA and immunohistochemistry assays.


Catalog Number: (100244-752)
Supplier: Southern Biotechnology
Description: Goat Anti-Rabbit IgG-FITC antibody for use in flow cytometry, immunohistochemistry / immunocytochemistry, and western blotting assays.


Catalog Number: (103265-638)
Supplier: Southern Biotechnology
Description: Goat Anti-Human IgG Fd-FITC antibody for use in fluorescent assays.


Catalog Number: (103264-862)
Supplier: Southern Biotechnology
Description: Goat Anti-Rabbit IgG-Alexa Fluor 488 antibody for use in flow cytometry, immunohistochemistry / immunocytochemistry, and western blotting assays.


Catalog Number: (103259-710)
Supplier: Southern Biotechnology
Description: Rat IgG2b-Pacific Blue for use as a control in flow cytometry assays.


Catalog Number: (100246-032)
Supplier: Southern Biotechnology
Description: CD3, a member of the immunoglobulin superfamily of cell surface receptors, is comprised of five invariable chains ranging from 16-28 kDa and is closely associated with the T cell antigen receptor (TCR). CD3 is expressed on 70-80% of normal peripheral blood lymphocytes and on 10-20% of thymocytes. It plays a major role in signaling during antigen recognition, leading to T cell activation. The monoclonal antibody UCHT1 reacts with the 20 kDa ε chain of the CD3/TCR complex.


Catalog Number: (103259-922)
Supplier: Southern Biotechnology
Description: CD54, a member of the immunoglobulin superfamily of cell surface receptors and also known as Intercellular Adhesion Molecule-1 (ICAM-1), is a type I transmembrane glycoprotein that mediates important cell/cell interactions. CD54 is expressed on endothelial cells, dendritic cells, keratinocytes, and lymphocytes. Its expression is upregulated by inflammatory mediators such as IFN γ, IL-1, TNF-α, lipopolysaccharide, and phorbol esters. Endothelial CD54 contributes to the extravasation of leukocytes from blood vessels, particularly in areas of inflammation. CD54 on antigen-presenting cells contributes to antigen-specific T-cell activation, presumably by enhancing interactions between T cell and antigen-presenting cells. These adhesion reactions are mediated via the binding of CD54 to its major ligands, LFA-1 and Mac-1.


Catalog Number: (100243-334)
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.


Catalog Number: (103264-564)
Supplier: Southern Biotechnology
Description: CD31, also known as platelet endothelial cell adhesion molecule-1 (PECAM-1), is a type I integral membrane glycoprotein and a member of the immunoglobulin superfamily of cell surface receptors. It is constitutively expressed on the surface of endothelial cells and concentrated at the junction between them. It is also weakly expressed on many peripheral lymphoid cells and platelets. CD31 interacts homotypically in cell adhesion assays. The monoclonal antibody 390 inhibits the aggregation of L cells transfected with a variant form of CD31.


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