Anti-HLA-DQ antibodies, human

Anti-HLA-DQ antibodies, human

Clone: REA303 | Dilution: 1:50
Clone REA303 recognizes HLA-DQ, an αβ heterodimer of the MHC class II type. Expressed on the surface of most nucleated cells, MHC class II molecules play an important role in the immune system. They are essential in the defense against infection and are a main consideration in transplantation medicine. In addition to presenting antigenic peptides from predominantly extracellular sources to CD4
T cells, MHC class II molecules also mediate the thymic selection of T helper cells. MHC class II molecules consist of an α and β chain and are transported to endosomal-lysosomal compartments by the invariant chain. In humans, MHC class II molecules are encoded by three different loci, HLA-DR, -DQ, and -DP, which display 70% similarity to each other. Both chains of HLA-DQ are polymorphic. Despite the essential function of MHC class II molecules in immune defense against pathogens, some alleles are frequently linked to immune diseases. Two autoimmune diseases in which HLA-DQ is involved are coeliac disease and diabetes mellitus type 1.
Additional information: Clone REA303 displays negligible binding to Fc receptor

Alternative names


Technical specifications

  • Antigen: HLA-DQ
  • Clone: REA303
  • Isotype: recombinant human IgG1
  • Isotype control: REA Control (S) antibodies
  • Alternative names of antigen: HLA-DQA1, HLA-DQA2, HLA-DQB1, HLA-DQB2
  • Entrez Gene ID: 3117, 3118, 3119, 3120, 3121
  • Molecular mass of antigen [kDa]: 26
  • Distribution of antigen: B cells, dendritic cells, macrophages, monocytes
  • Product format: Reagents are supplied in buffer containing stabilizer and 0.05% sodium azide.
  • Fixation: Cells should be stained prior to fixation, if formaldehyde is used as a fixative.
  • Storage: Store protected from light at 2–8 °C. Do not freeze.
  • Available conjugates: FITC
  • Selected references

    1. van Lith, M. et al. (2010) HLA-DP, HLA-DQ, and HLA-DR have different requirements for invariant chain and HLA-DM. J. Biol. Chem. 285(52): 40800-40808
    2. Jones, E. Y. et al. (2006) MHC class II proteins and disease: a structural perspective. Nat. Rev. Immunol. 6(4): 271-282
    3. Klitz, W. et al. (2003) New HLA haplotype frequency reference standards: high-resolution and large sample typing of HLA DR-DQ haplotypes in a sample of European Americans. Tissue Antigens 62(4): 296-307
Product options: 2
for 30
EUR 93,00 
for 100
EUR 227,00 

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