CD4 Antibody (W3/25) - BSA Free
Novus Biologicals, part of Bio-Techne | Catalog # NB100-64988
Conjugate
Catalog #
Forumulation
Catalog #
Key Product Details
Species Reactivity
Validated:
Rat
Cited:
Rat
Applications
Validated:
Flow (Cell Surface), Flow Cytometry, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin
Cited:
Immunohistochemistry-Paraffin
Label
Unconjugated
Antibody Source
Monoclonal Mouse IgG1 Clone # W3/25
Format
BSA Free
Concentration
1.0 mg/ml
Product Specifications
Immunogen
Rat Thymocyte Membrane Glycoproteins
Localization
Type I membrane protein.
Specificity
NB100-64988 recognizes the rat CD4 cell surface glycoprotein, a 55kD molecule expressed by helper T cells and weakly by monocytes. This product is routinely tested in flow cytometry on rat splenocytes.
Clonality
Monoclonal
Host
Mouse
Isotype
IgG1
Scientific Data Images for CD4 Antibody (W3/25) - BSA Free
Flow Cytometry: CD4 Antibody (W3/25) - BSA Free [NB100-64988]
Flow Cytometry: CD4 Antibody (W3/25) [NB100-64988] - Detection of CD4 in Rat Splenocytes by Flow Cytometry. Rat splenocytes were stained with (A) Mouse Anti-Rat CD4 Monoclonal Antibody (Catalog # NB100-64988) or (B) Mouse IgG2A Isotype Control Antibody (Catalog # MAB003) followed by anti-Mouse IgG APC-conjugated secondary antibody (Catalog # F0101B) and Mouse Anti-Rat CD3 epsilon PE conjugated Monoclonal Antibody.Flow (Cell Surface): CD4 Antibody (W3/25) - BSA Free [NB100-64988]
Flow (Cell Surface): CD4 Antibody (W3/25) [NB100-64988] - Rat Splenocytes were stained with NB100-64988 (blue) and a matched isotype control NBP2-27287 (orange). Cells were incubated in an antibody dilution of 1 ug/mL for 20 minutes at room temperature. The antibodies were directly conjugated to Alex Fluor 488.Immunocytochemistry/ Immunofluorescence: CD4 Antibody (W3/25) - BSA Free [NB100-64988]
Immunocytochemistry/Immunofluorescence: CD4 Antibody (W3/25) [NB100-64988] - Staining of rat splenocytes with CD4 (W3/25) antibody. Live cells were incubated with CD4 antibody on ice, then fixed with 2% formaldehyde prior to secondary antibody incubation.Applications for CD4 Antibody (W3/25) - BSA Free
Application
Recommended Usage
Flow Cytometry
1:100-1:200
Immunohistochemistry
1:10-1:500
Immunohistochemistry-Frozen
1:10-1:500
Immunohistochemistry-Paraffin
1:10-1:500
Application Notes
This antibody inhibits proliferation and IL-2 production in the MLR reaction. This clone has been described reacting with paraffin-embedded material following PLP fixation (periodate-lysine-paraformaldehyde), thus PLP fixation is recommended for optimal results.
Formulation, Preparation, and Storage
Purification
Protein G purified
Formulation
PBS
Format
BSA Free
Preservative
0.02% Sodium Azide
Concentration
1.0 mg/ml
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
Background: CD4
Given its critical role in T cell development, CD4 also has diverse immunology-related functions. CD4 acts as a coreceptor with the T-cell receptor (TCR) during T cell activation and thymic differentiation by binding directly to major histocompatibility complex (MHC) class II antigens and associating with the protein tyrosine kinase, Lck (4). This interaction contributes to the formation of the immunological synapse (5). Defects in antigen presentation cause dysfunction of CD4+ T cells and the almost complete loss of MHC II expression on B cells in peripheral blood, as observed in severe combined immunodeficiency (SCID) (6). CD4 also functions as a receptor for the human immunodeficiency virus (HIV) by binding to gp120, the envelope glycoprotein of HIV-1. It has been shown that the V-like domains are critical for binding to gp120 (7). In immune mediated and infectious diseases of the central nervous system, CD4 functions as an indirect mediator of neuronal damage (8).
References
1. Omri, B., Crisanti, P., Alliot, F., Marty, M., Rutin, J., Levallois, C., . . . Pessac, B. (1994). CD4 expression in neurons of the central nervous system. International Immunology, 6(3), 377-385. doi:10.1093/intimm/6.3.377
2. Wan, Y. Y., & Flavell, R. A. (2009). How diverse-CD4 effector T cells and their functions. Journal of Molecular Cell Biology, 1(1), 20-36. doi:10.1093/jmcb/mjp001
3. Wu, H., Myszka, D. G., Tendian, S. W., Brouillette, C. G., Sweet, R. W., Chaiken, I. M., & Hendrickson, W. A. (1996). Kinetic and structural analysis of mutant CD4 receptors that are defective in HIV gp120 binding. Proceedings of the National Academy of Sciences, 93(26), 15030-15035. doi:10.1073/pnas.93.26.15030
4. Doyle, C., & Strominger, J. L. (1987). Interaction between CD4 and class II MHC molecules mediates cell adhesion. Nature, 330, 256-259. doi:10.1038/330256a0
5. Vignali, D. A. (2010). CD4 on the road to coreceptor status. The Journal of Immunology, 184(11), 5933-5934. doi:10.4049/jimmunol.1090037
6. Tasher, D., & Dalal, I. (2012). The genetic basis of severe combined immunodeficiency and its variants. The Application of Clinical Genetics, 5, 67-80. doi:10.2147/tacg.s18693
7. Arthos, J., Deen, K. C., Chaikin, M. A., Fornwald, J. A., Sathe, G., Sattentau, Q. J., . . . Sweet, R. W. (1989). Identification of the residues in human CD4 critical for the binding of HIV. Cell, 57(3), 469-481. doi:10.1016/0092-8674(89)90922-7
8. Buttini, M., Westland, C. E., Masliah, E., Yafeh, A. M., Wyss-Coray, T., Mucke, L. (1998). Novel role of human cd4 molecule identified in neurodegeneration. Nature Medicine, 4(4), 441-446. doi:10.1038/nm0498-441
Alternate Names
CD4
Gene Symbol
CD4
Additional CD4 Products
Product Documents for CD4 Antibody (W3/25) - BSA Free
Product Specific Notices for CD4 Antibody (W3/25) - BSA Free
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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