• Species Reactivity

  Human

• Specificity

  Detects human HLA‑DR.

• Source

  Monoclonal Mouse IgG    ₁ Clone # L203

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  RPMI 8866 human lymphoblastoid cells    
  Accession # P01903

• Formulation

  Supplied in a saline solution containing BSA and Sodium Azide.

• Label

  Phycoerythrin

Applications

• 
  

  Recommended    
  Concentration

  Sample

• Flow Cytometry

  10 µL/10    ⁶ cells

  See below

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Protect from light.    Do not freeze.    

• 12 months from date of receipt, 2 to 8 °C as supplied.

Background: HLA-DR

HLA-DR is a transmembrane human major histocompatibility complex 2 (MHC II) family member and consists of a 34 kDa (alpha) subunit and one of several 28 kDa (beta) subunits. HLA-DR is expressed primarily by B cells and dendritic cells (DC), in which it binds peptides derived from internalized and processed antigenic proteins. It presents these peptides on the cell surface for recognition by the T cell receptor on CD4⁺ T cells. This interaction is central to antigen specificity in the adaptive immune response. HLA-DR alleles, polymorphisms, and aberrant expression are linked to a variety of diseases including autoimmunity and cancer.

• Long Name:

  Major Histocompatibility Complex Class II DR

• Entrez Gene IDs:

  3122 (Human)

• Alternate Names:

  FLJ51114; histocompatibility antigen HLA-DR alpha; HLA class II histocompatibility antigen, DR alpha chain; HLADR; HLA-DR; HLA-DRA; HLA-DRA1; major histocompatibility complex, class II, DR alpha; MHC cell surface glycoprotein; MHC class II antigen DRA; MHC Class II DR; MLRW