| Code | CSB-AP004361HU |
| Abbreviation | Recombinant Human IL22 protein, partial (Active) |
| MSDS | |
| Size | $290 |
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IL-22 signals through the IL-22R1/IL-10R2 heterodimer to activate JAK/STAT3 pathways critical for epithelial barrier defense and tissue repair, making a well-characterized recombinant form essential for dissecting these mechanisms. This tag-free human IL-22 (aa 34–179) encompasses the mature secreted sequence and demonstrates confirmed receptor engagement, with an ED50 of 34.43 ng/ml for binding recombinant human IL-22RA2 in functional ELISA—supporting its use as a coating antigen for antibody screening, a positive control in cytokine detection assays, and a ligand in JAK/STAT signaling studies. The endotoxin level below 1.0 EU/μg satisfies the stringent criteria needed to prevent LPS-driven artifacts in cell-based activation or differentiation assays and in vivo inflammation models. Purity exceeding 95% by SDS-PAGE, combined with this low endotoxin burden, provides a suitable basis for generating reliable dose-response data in STAT3 phosphorylation readouts and antibody validation workflows.
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What is the difference between these two active proteins (CSB-AP004361HU and CSB-AP001891HU)?
The expression sequence of the active protein CSB-AP001891HU has one more Methionine residue. Their expression vectors, activation methods, buffering, purity and so on are different.