Background: Identification of CD4 on human helper/inducer T cells expressing the 60,000 M.W. surface antigen (HLA class II reactive). CD4 is present in low density on monocytes. Anti-human CD28 binds the 44kDa MW cell surface protein on the surface of most T cells. The CD26 antigen recognizes the enzyme dipeptidyl peptidase (DPP), a serine protease. Its M.W. is 120 kDa. The CD26 antigen is associated with the binding of the TAT transactivating protein of the human immunodeficiency virus (HIV).
Immunogen: CD4=Derived from the hybridization of mouse NS-1 myeloma cells with spleen cells from BALB/c mice immunized with human perherial blood T lymphocytes.
Purification Method: Protein A/G Chromatography
Concentration: Titered for flow cytometry
Formulation: Provided as solution in phosphate buffered saline with 0.08% sodium azide and 0.2% carrier protein
References: 1. Thymus Dependent Membrane Antigens in Man: Inhibition of Cell-Mediated Lympholysis by Monoclonal Antibodies to the TH-2 Antigen. Evans, R.L., Wall, D.W., Platsoucas, C.D., Siegal, F.P., Fikrig, S.M., Testa, C.M, and Good, R.A. Proc. Nat. Acad. Sci. 78,544,1981. 2. Novel Immunoregulatory Functions of Phenotypically Distinct Subpopulations of CD4+ cells in the Human Neonate. Clement, L.T., Vink, P.E., Bradley, G.E. J. Immunology 145(1):102-8,1990 . 3. Antigen Presentation by the CD4 Positive Monocyte Subset. Szabo, G., Miller, C.L., Kodys, K., J. Leukoc. Biol. 47(2): 111-20,1990. 4. Human Immunodeficiency Virus Infection is Efficiently Mediated by a Glycolipid-Anchored form of CD4. Diamond, D.C., Finberg, R., Chaudhuri, S., Sleckman, B.P., Burakoff, S.J., Proc. Natl. Acad. Sci. 87(13):5001-5,1990. 5. Development Regulation of the Intrathymic T cell Precursor Population. Adkins, B., J. Immunol. 146(5):1387-93,1991. 6. Induction of CD4 and Susceptibility to HIV-1 Infection in Human CD8+ T Lymphocytes by Human Herpesvirus 6. Lusso, P., De Maria, A., Malnati, M., Lori, F., DeRocco, S.E., Baseler, M., Gallo, R.C., Nat. 349(6309):533-5,1991. 7. CD26 antigen is a surface dipeptidyl peptidase IV (DPPIV) as characterized by monoclonal antibodies clone TII-19-4-7 and 4EL1C7. Scand J Immunol 1990 Ap;31(4):429-35 Ulmer AJ; Mattern T; Feller AC; Heymann E; Flad HD 8. Comitogenic effect of solid-phase immobilized anti-1F7 on human CD4 T cell activation via CD3 and CD2 pathways. SO - J Immunol 1990 Jun ;144(11):4092-100 AU - Dang NH; Torimoto Y; Deusch K; Schlossman SF; Morimoto C 9. Comitogenic effect of solid-phase immobilized anti-1F7 on human CD4 T cell activation via CD3 and CD2 pathways. J Immunol 1990 Jun ;144(11):4092-100 Dang NH; Torimoto Y; Deusch K; Schlossman SF; Morimoto C 10. Binding of the T cell activation monoclonal antibody Ta1 to dipeptidyl peptidase IV. J Leukoc Biol 1990 Oc;48(4):291-6 Barton RW; Prendergast J; Kennedy CA 11. Expression of CD26 (dipeptidyl peptidase IV) on resting and activated human T-lymphocytes. Scand J Immunol 1991 Ju;33(6):737-48 Mattern T; Scholz W; Feller AC; Flad HD; Ulmer AJ 12. Induction of interleukin 2 (IL 2) and interferon-gamma and enhancement of IL 2 receptor expression by a CD26 monoclonal antibody. Eur J Immunol 1991 Ap;21(4):1085-8 Plana M; Vinas O; De la Calle-Martin O; Lozano F; Ingles-Esteve J; Romero M; Alberola-Ila J; Yague J; Vilella R; Vives J 13. Lymphocyte immunophenotypes among anti-HTLV-I/II-positive blood donors and recipients. The Transfusion Safety Study Group. J Acquir Immune Defic Syndr 1991;4(6):628-32 Fletcher MA; Gjerset GF; Hassett J; Donegan E; Parker JW; Mosley JW
UniProt: P01730, P27487
Caution: This product is intended FOR RESEARCH USE ONLY, and FOR TESTS IN VITRO, not for use in diagnostic or therapeutic procedures involving humans or animals.
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