Recombinant Human IL-24 Protein, CF Summary
| Details of Functionality |
Measured in a cell proliferation assay using BaF3 mouse pro-B cells transfected with human IL-20 R alpha and human IL-20 R beta . The ED 50 for this effect is 15-150 pg/mL. |
| Source |
Mouse myeloma cell line, NS0-derived human IL-24 protein Met28-Leu206, with a C-terminal 10-His tag |
| Accession # |
|
| N-terminal Sequence |
Gln52 predicted, no results obtained, sequencing might be blocked. |
| Protein/Peptide Type |
Recombinant Proteins |
| Gene |
IL24 |
| Purity |
>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining |
| Endotoxin Note |
<0.10 EU per 1 μg of the protein by the LAL method. |
Applications/Dilutions
| Dilutions |
|
| Theoretical MW |
19.5 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
| SDS-PAGE |
26-35 kDa, reducing conditions |
| Publications |
Read Publications using 1965-IL/CF in the following applications:
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Packaging, Storage & Formulations
| Storage |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 degreesC as supplied. 1 month, 2 to 8 degreesC under sterile conditions after reconstitution. 3 months, -20 to -70 degreesC under sterile conditions after reconstitution. |
| Buffer |
Lyophilized from a 0.2 μm filtered solution in PBS. |
| Purity |
>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining |
| Reconstitution Instructions |
Reconstitute at 100 μg/mL in sterile PBS. |
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human IL-24 Protein, CF
Background
Interleukin 24 (IL-24), also known as mda-7 (melanoma differentiation associated gene-7), is a member of the IL-10 family of helical cytokines. The IL-24 gene encodes a precursor protein of 207 amino acids (aa) that contains a 48 aa signal sequence and an 18 kDa, 158 aa mature segment. There are three potential N-linked glycosylation sites, at least one of which is used. When secreted, IL-24 is a 35 - 40 kDa phosphorylated glycoprotein that apparently can exist as either a monomer or dimer. It is suggested that glycosylation is essential for activity. Mature human IL-24 shares 69% aa sequence identity with mouse and rat IL-24. Human IL-24 is also active in rodent systems. Cells known to express IL-24 include B cells, CD4 + T cells, NK cells, lymph node dendritic cells, monocytes, melanocytes, and melanoma cells. Functionally, IL-24 has diverse activities. At low concentrations on monocytes, it induces type I proinflammatory cytokines such as IFN‑ gamma , IL‑1 beta , IL‑12 and TNF-alpha . At high concentrations, it is a strong inducer of apoptosis in tumor cells, but not normal cells. IL‑24 also has anti-angiogenic properties. It directly binds IL-24 receptors on endothelial cells, activating STAT3 and blocking their differentiation. IL-24 binds and signals through two heterodimeric receptor complexes. One complex is the combination of IL-20 R alpha and IL-20 R beta , which is shared with IL-19 and IL-20. The second complex is a combination of IL-22 R and IL-20 R beta , which is shared with IL-20.
- Jiang, H. et al. (1995) Oncogene 11:2477.
- Jiang, H. et al. (1996) Proc. Natl. Acad. Sci. USA 93:9160.
- Wang, M. et al. (2002) J. Biol Chem. 227:7341.
- Chada, S. et al. (2004) Int. Immunopharmacol. 4:649.
- Pestka, S. et al. (2004) Annu. Rev. Immunol. 22:929.
- Chen, J. et al. (2003) Molec. Ther. 8:220.
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