Reactivity | RtSpecies Glossary |
Applications | Binding Activity |
Format | Carrier-Free |
Details of Functionality | Measured by its ability to compete with immobilized rmIL-17F for binding with rmIL-17R in a functional ELISA. |
Source | E. coli-derived rat IL-17F protein Ala27-Ala161 |
Accession # | |
N-terminal Sequence | Ala19 |
Structure / Form | Disulfide-linked homodimer |
Protein/Peptide Type | Recombinant Proteins |
Gene | Il17f |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain. |
Endotoxin Note | <0.01 EU per 1 μg of the protein by the LAL method. |
Dilutions |
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Theoretical MW | 15.1 kDa (monomer). 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. |
Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Buffer | Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA. |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain. |
Reconstitution Instructions | Reconstitute at 100 μg/mL in sterile 4 mM HCl. |
Interleukin-17F (also ML-1) is a 19 kDa member of the IL-17 family of cytokines. Members of this family are involved in tissue homeostasis and demonstrate a structural motif termed a cysteine knot that characterizes a large superfamily of growth factors. Although most cysteine knot superfamily members use three intrachain disulfide bonds to create a knot, IL-17 family molecules generate the same structural form with only two disulfide links (1, 2, 3, 4). Based on mouse, mature rat IL-17F is 133 amino acids (aa) in length (5, 6). Rat IL-17F is a presumably secreted, 38 kDa glycosylated disulfide-linked homodimer. It is also secreted as a 35 kDa disulfide-linked heterodimer with IL-17/17A (7, 8). The heterodimeric form represents about 30% of secreted IL-17F. Initially, IL-17F was also reported as IL-24. Since that time, the IL-24 designation has been reassigned to MDA-7, a member of the IL-10 family of molecules (note: IL-17E is synonymous with IL-25). Mature rat IL-17F shares 59% and 90% aa identical with mature human and mouse IL-17F, respectively; it also shows 55% aa identity to rat IL-17. Interspecies studies suggest rat IL-17F is produced by activated TH17-type CD4+ T cells, mast cells, basophils and monocytes (1, 3, 9), and is inducible through the interaction of TGF-beta , IL-6 and IL-23 (9, 10, 11). Targets for IL-17F include respiratory epithelium, fibroblasts, macrophages and endothelial cells which produce proinflammatory cytokines such as GM-CSF, IL-6, IFN-gamma , IP-10, MIP-1 alpha and MCP-1 (2, 6, 12). This activity is found for both homodimeric and heterodimeric forms of IL-17F (7).
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Gene Symbol | Il17f |
Uniprot |