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Biotin Mouse Anti-Mouse Qa-2
Product Details
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BD Pharmingen™
Mouse (QC Testing)
Mouse C3H.KBR IgG2a, κ
C3H.SW mouse skin graft and splenocytes
Flow cytometry (Routinely Tested), Immunohistochemistry-frozen (Tested During Development)
0.5 mg/ml
Aqueous buffered solution containing ≤0.09% sodium azide.

Preparation And Storage

The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with biotin under optimum conditions, and unreacted biotin was removed. Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

Recommended Assay Procedures

This antibody has been tested during development for immunohistochemical (IHC) application by staining of acetone-fixed frozen rmouse spleen and thymus tissue sections with the antibody concentration of  0.5 -10 µg/ml. It's not tested for each lot for IHC application. Since applications vary, each investigator must determine dilutions appropriate for individual use.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Please refer to for technical protocols.
  3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
558973 Rev. 10
Antibody Details
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The 1-1-2 monoclonal antibody specifically recognizes the Qa-2 MHC class Ib antigen, which is expressed at higher levels on mature T lymphocytes than on B cells. Its expression is upregulated in the late stages of T-cell maturation. Qa-2 is a 40 kDa GPI-linked cell surface molecule encoded by the Q5, Q6, Q7, and/or Q9 genes of the H-2 complex. A 39 kDa soluble form results from alternative splicing of the transcript. Although Qa-2 is nonpolymorphic, its level of expression on both T and B lymphocytes varies among inbred mouse strains. High expressors include strains carrying the H-2[b] haplotype low expressors include H-2[d] strains, and H-2[k] strains are Qa-2-negative.

558973 Rev. 10
Format Details
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Biotin is a ubiquitous co-factor (also known as Vitamin B7) that has many properties that make it extremely useful for molecular biology. Biotin has an extremely high affinity for the Avidin family of proteins (Kd = 10-15 M), making it the perfect tool to link two molecules. Biotin labeled antibodies can be combined with any number of Avidin-conjugated probes in order to customize an assay to a particular need. This is especially useful in the case of magnetic cell separation using streptavidin/magnetic bead conjugates, or in the case of flow cytometry using streptavidin/fluorophore conjugates.
558973 Rev.10
Citations & References
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Development References (3)

  1. Gabor MJ, Godfrey DI, Scollay R. Recent thymic emigrants are distinct from most medullary thymocytes. Eur J Immunol. 1997; 27(8):2010-2050. (Biology). View Reference
  2. Sharrow SO, Arn JS, Stroynowski I, Hood L, Sachs DH. Epitope clusters of Qa-2 antigens defined by a panel of new monoclonal antibodies. J Immunol. 1989; 142(10):3495-3502. (Immunogen). View Reference
  3. Shawar SM, Vyas JM, Rodgers JR, Rich RR. Antigen presentation by major histocompatibility complex class I-B molecules. Annu Rev Immunol. 1994; 12:839-880. (Biology). View Reference
558973 Rev. 10

Please refer to Support Documents for Quality Certificates

Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described

Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

For Research Use Only. Not for use in diagnostic or therapeutic procedures.