Recombinant Human IL-20
Human Interleukin-20 (IL-20) is encoded by the IL20 gene located on the chromosome 1 and belongs to the IL-10 family that including IL-10, IL-19, IL-22, IL-24, and IL-26. It is secreted by activated keratinocytes and monocytes, and signals through two distinct cell-surface receptor complexes on keratinocytes and other epithelial cells. IL-20 has functions of regulating proliferation and differentiation of keratinocytes during inflammation, and causing cell expansion of multipotential hematopoietic progenitor cells.
Reference:
1. Sabat R. 2010. Cytokine Growth Factor Rev, 21: 315-24.
2. Blumberg H, Conklin D, Xu WF, et al. 2001. Cell, 104: 9-19.
3. Wei CC, Hsu YH, Li HH, et al. 2006. J Biomed Sci, 13: 601-12.
4. Hsu YH, Li HH, Hsieh MY, et al. 2006. Arthritis Rheum, 54: 2722-33.
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Gene ID |
50604 |
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Accession # |
Q9NYY1 |
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Alternate Names |
Interleukin-20, Cytokine Zcyto10 |
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Source |
Escherichia coli. |
|
M.Wt |
Approximately 17.6 kDa, a single non-glycosylated polypeptide chain containing 153 amino acids. |
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AA Sequence |
MLKTLNLGSC VIATNLQEIR NGFSEIRGSV QAKDGNIDIR ILRRTESLQD TKPANRCCLL RHLLRLYLDR VFKNYQTPDH YTLRKISSLA NSFLTIKKDL RLCHAHMTCH CGEEAMKKYS QILSHFEKLE PQAAVVKALG ELDILLQWME ETE |
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Appearance |
Sterile Filtered White lyophilized (freeze-dried) powder. |
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Stability & Storage |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. - 12 months from date of receipt, -20 to -70°C as supplied. - 1 month, 2 to 8°C under sterile conditions after reconstitution. - 3 months, -20 to -70°C under sterile conditions after reconstitution. |
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Formulation |
Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 7.2, with trehalose. |
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Reconstitution |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤ -20°C. Further dilutions should be made in appropriate buffered solutions. |
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Biological Activity |
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human IL-20Rα and human IL-20Rβ co-transfected murine BaF3 pro-B cells is less than 0.5 ng/ml, corresponding to a specific activity of > 2.0×106 IU/mg. |
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Shipping Condition |
Gel pack. |
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Handling |
Centrifuge the vial prior to opening. |
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Usage |
For Research Use Only! Not to be used in humans. |
Quality Control & MSDS
- View current batch:
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Purity >95% by SDS-PAGE and HPLC analyses.
- Datasheet
Endotoxin: Less than 1 EU/µg of rHuIL-20 as determined by LAL method.