MHC Class II antibody | PF8J-9B

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Mouse anti Cat MHC Class II

Product Type
Monoclonal Antibody
Product Code Applications Pack Size List Price Quantity
0.25 mg loader

Mouse anti Cat MHC class II antibody, clone PF8J-9B recognizes an epitope within the ~30 kDa beta chain region of cat MHC class II molecule, expressed by antigen presenting cells, B cells, monocytes and activated T lymphocytes. The major histocompatibility complex (MHC) is a cluster of genes that are important in the immune response to infections. In cats, this is referred to as the feline leukocyte antigen (FLA) region.

The complex retrovirus FIV (feline immunodeficiency virus), is responsible for a progressive and debilitating immune deficiency syndrome in domestic cats, similar to that caused by the human Immunodeficiency virus (HIV). The intensity of MHC Class II expression on cat lymphocyte membranes vary in association with feline retrovirus infections (Ohno et al. 1992).

Product Details

Target Species
Product Form
Purified IgG - liquid
Purified IgG prepared by affinity chromatography on Protein A from tissue culture supernatant
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
<0.1% Sodium Azide (NaN3)
Approx. Protein Concentrations
IgG concentration 1.0mg/ml

Storage Information

This product is shipped at ambient temperature. It is recommended to aliquot and store at -20°C on receipt. When thawed, aliquot the sample as needed. Keep aliquots at 2-8°C for short term use (up to 4 weeks) and store the remaining aliquots at -20°C.

Avoid repeated freezing and thawing as this may denature the antibody. Storage in frost-free freezers is not recommended.
12 months from date of despatch

More Information

For research purposes only

Applications of MHC Class II antibody

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Flow Cytometry
Western Blotting
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
Flow Cytometry
Use 10ul of the suggested working dilution to label 1x106 cells in 100ul.
Western Blotting
MCA2724 detects band/s of approximately 29-31kDa on fractionated cat lymphocyte cell lysates under non-reducing conditions.

Secondary Antibodies Available

Description Product Code Applications Pack Size List Price Quantity
Goat anti Mouse IgG (H/L):FITC (Multi Species Adsorbed) STAR117F F 0.5 mg loader
Rabbit F(ab')2 anti Mouse IgG:RPE STAR12A F 1 ml loader
Rabbit F(ab')2 anti Mouse IgG:HRP (Human Adsorbed) STAR13B C E P RE WB 1 mg loader
Rabbit F(ab')2 anti Mouse IgG:FITC STAR9B F 1 mg loader

Negative Isotype Controls Available

Description Product Code Applications Pack Size List Price Quantity
Mouse IgG2a Negative Control MCA1210 F 100 Tests loader
Mouse IgG2a Negative Control MCA929 F 100 Tests loader

Product Specific References

References for MHC Class II antibody

  1. Zhang L et al. (2015) Phenotypic and functional analysis of CD1a+ dendritic cells from cats chronically infected with feline immunodeficiency virus.
    Comp Immunol Microbiol Infect Dis. pii: S0147-9571(15)00055-7.
  2. Litster, A.L. et al. (2013) Diagnostic utility of a direct immunofluorescence test to detect feline coronavirus antigen in macrophages in effusive feline infectious peritonitis.
    Vet J. 198 (2): 362-6.
  3. Simões, R.D. et al. (2019) Effects of Regulatory T Cell Depletion on NK Cell Responses against Listeria monocytogenes in Feline Immunodeficiency Virus Infected Cats.
    Viruses. 11 (11)Oct 24 [Epub ahead of print].

Further Reading

  1. Hunt, P. et al. (1995) Variable expression of major histocompatibility complex class II in the domestic cat.
    Res Vet Sci. 59 (3): 195-200.

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