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Catalogue number: 0DR4


Product Type Single-Color Reagent
Units100 Tests
Application Flow Cytometry
Product Form

HLA-DR is used for the identification of human B cell and T cell subsets associated with approximately 10% of peripheral blood lymphocytes 28-34,000 M.W. surface antigen, and is present in low density on monocytes and macrophages.

HLA-DR=Derived from the hybridization of mouse NS-1/1-Ag4 myeloma cells with spleen cells of BALB/c mice immunized with human lymphoblastoid B-cell line RPMI 8866

Purification Method
Protein A/G Chromatography

Titered for flow cytometry

Provided as solution in phosphate buffered saline with 0.08% sodium azide and 0.2% carrier protein

Functional Analysis
Flow Cytometry Staining

PBMC: Add 10 µl of MAB/10^6 PBMC in 100 µl PBS. Mix gently and incubate for 15 minutes at 2º to 8ºC. Wash twice with PBS and analyze or fix with 0.5% v/v of paraformaldehyde in PBS and analyze. WHOLE BLOOD: Add10 µl of MAB/100 µl of whole blood. Mix gently and incubate for 15 minutes at room temperature 20ºC. Lyse the whole blood. Wash once with PBS and analyze or fix with 0.5% v/v of paraformaldehyde in PBS and analyze. See instrument manufacturer’s instructions for Lysed Whole Blood and Immunofluorescence analysis with a flow cytometer or microscope.

Product should be stored at 4-8ºC. DO NOT FREEZE

Ship Conditions
room temperature

Product Stability
Reagents are stable for the period shown on the vial label when stored properly

1. IL-4 and granulocyte-macrophage colony-stimulating factor selectively increase HLA-DR and HLA-DP antigens but not HLA-DQ antigens on human monocytes. Gerrard T.L., Dyer D.R., Mostowski H.S., J. Immunol. 1990 June, 1;144(12): 4670-4. 2. Structural requirements for pairing of alpha and beta chains in HLA-DR and HLA-DP molecules. Karp D.R., Teletski C.L., Jaraquemada D., Maloy W.L., Coligan J.E., Long E.O., J. Exp.. Med. 1990 March ;171(3):615-28. 3. Trans-activation of HLA-DR gene by hepatitis B virus X gene product. Hu K.Q., Vierling J.M., Siddiqui A., Proc. Natl. Acad. Sci. USA 1990 SEPT.; 87(18):7140-4. 4. Purified primitive human hematopoietic progenitor cells with long-term in vitro repopulating capacity adhere selectively to irradiated bone marrow stroma. Verfaillie C., Blakolmer K., McGlave P., J. Exp. Med. 1990 Aug.: 172(2):509-2. 5. Defective clonogenic potential of CD8+ T lymphocytes in patients with AIDS. Expansion in vivo of a nonclonogenic CD3+ CD8+ DR+ CD25- T cell population. Pantaleo G., Keonig S., Baseler M., Lane H.C., Fauci A.S., J. Immunol. 1990 Mar ; 144(5):1696-704. 6. Increased circulating HLA-DR+ CD4+ T cells in systemic lupus erythematosus: alterations associated with prednisolone therapy. Raziuddin S., Nur M.A., al-Wabel A.A., Scand. J. Immunol. 1990 Feb.:31(2):139-45.

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.

Safety Datasheet(s) for this product:

Sodium Azide




Contact us

Exalpha Biologicals, Inc.
2 Shaker Road, Unit B101
Shirley, MA 01464
Phone: 978-425-1370