Recombinant Mouse IL-13 Rα2

Interleukin 13 receptor alpha 2, also known as IL13RA2 and CD213A2, binds IL13 with high affinity, but lacks cytoplasmic domain, and does not appear to function as a signal mediator. IL13RA2 serves as a dominant negative inhibitor or a decoy receptor for IL-13.¹ IL-13Ralpha2 is a promising target for ovarian cancer therapy, and the soluble form of IL-13R may be a possible surrogate marker for disease monitoring.² IL13RA2 signaling during prolonged inflammation is also an important therapeutic target for the prevention of TGF-beta(1)-mediated fibrosis.³

Fc Fusion Protein

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Leu22

Lyophilized

The predicted molecular weight of Recombinant Mouse IL-13 Rα2 is Mr 63 kDa. However, the actual molecular weight as observed by migration on SDS-PAGE is Mr 85-90 kDa.

63

This recombinant protein was 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 with no calcium, magnesium, or preservatives.

This lyophilized protein is stable for six to twelve months when stored desiccated at -20°C to -70°C. After aseptic reconstitution, this protein may be stored at 2°C to 8°C for one month or at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions.

Next Day Ambient

1. Low, WC. et al. (2003) Neuro Oncol. 5: 179
2. Puri, RK. et al. (2006) Cancer 107: 1407
3. Kitani, A. et al. (2006) Nat Med. 12: 99