| Code | CSB-AP001891HU |
| Abbreviation | Recombinant Human IL22 protein (Active) |
| MSDS | |
| Size | $354 |
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IL-22 plays a central role in mucosal immunity and epithelial defense, signaling through the IL-22R1/IL-10R2 heterodimer to activate JAK/STAT3 and MAPK pathways in target tissues. This tag-free recombinant human IL-22, encompassing the full mature sequence (residues 34–179), demonstrates potent bioactivity with an ED50 below 0.3 ng/ml in a COLO 205 IL-10 secretion assay, corresponding to a specific activity exceeding 3.3 × 10⁶ IU/mg — a level that supports use in cell-based functional assays such as epithelial activation and differentiation studies, as well as JAK/STAT and NF-κB signaling pathway dissection. Endotoxin levels below 1.0 EU/μg minimize the risk of LPS-driven artifacts in sensitive immune cell experiments, making this preparation appropriate for in vivo inflammation models and as a reference standard in cytokine detection assays. Purity exceeding 97% by SDS-PAGE further provides a suitable basis for antibody development workflows, including use as a coating antigen in ELISA or a positive control in western blot validation.
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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.