| Code | CSB-MP011626HU |
| Abbreviation | Recombinant Human IL1RL1 protein, partial (Active) |
| MSDS | |
| Size | $102 |
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IL1RL1, also known as ST2, functions as a decoy receptor in IL-33 signaling and serves as a biomarker in cardiovascular inflammation and heart failure research. This mammalian-expressed construct spanning residues 19–323 captures the extracellular ligand-binding domain, and functional ELISA validation demonstrates robust antibody binding with EC50 values of 6.4–7.7 ng/mL and 11.9–14.0 ng/mL for two distinct anti-IL1RL1 antibodies, confirming conformational integrity suitable for receptor-ligand interaction studies and therapeutic antibody epitope mapping. The quantified binding kinetics support its use in competitive inhibition assays, blocking antibody screening, and as a positive control in SPR or BLI affinity characterization experiments targeting the IL-33/ST2 axis. Purity exceeding 95% by both SDS-PAGE and SEC-HPLC, combined with endotoxin levels below 1.0 EU/μg, aligns with standards expected in sensitive binding assays and antibody development workflows where low contaminant interference is critical.
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