ST2:Fc, Recombinant, Human (Interleukin-1 Receptor-like 1, IL-1 Receptor-like 1, IL1RL1, IL-33 Receptor, Interleukin-33 Receptor)

Molecular Biology / MB-Receptors

-20°C

Purified

30021019

The ST2 (Interleukin-1 receptor-like 1; Interleukin-33 receptor) gene was originally identified as a gene induced by serum or oncogene expression in fibroblasts. The gene produces a shorter soluble secreted form (ST2) and a longer, transmembrane form (ST2L) by alternative splicing. Soluble ST2 has been shown to downregulate the expression of TLR1 and TLR4. ST2L negatively regulates TLR4 signaling and induces endotoxin tolerance, and enhances Th2 responses. IL-33 is the specific ligand for ST2L.

Biological Activity:
Interacts with human IL-33.

Sequence:
Signal peptide and the sequence of isoform 2 of human ST2 (aa1-328) are fused at the C-terminus to the Fc portion of human IgG1.

Storage and Stability:
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 6 months after receipt at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.