CD213a2, also known as IL-13Rα2, is a type I transmembrane protein and member of the hematopoietin family. IL13Ra2 is the high affinity receptor for IL-13, but it possibly acts as a decoy receptor to antagonize IL-13Rα1/IL-4Ra-mediated IL-13 biological functions. IL13Rα2 is expressed by fibroblasts, smooth muscle cells, keratinocytes and activated B cells. However, its presence on the cell surface is highly regulated. CD213a2 is also expressed in various types of cancer which makes it an attractive therapeutic target.

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤2.0 microg per million cells in 100 microL volume. It is recommended that the reagent be titrated for optimal performance for each application.

1. Takenouchi M, et al. 2011. Clin. Cancer Res. 17:2819. (FC)