| Species |
Human |
| Protein Construction |
TARC/CCL17 (Ala24-Ser94)
Accession # Q92583 |
|
| Purity |
> 97% as analyzed by SDS-PAGE
> 97% as analyzed by HPLC |
| Endotoxin Level |
< 1 EU/μg of protein by LAL method |
| Biological Activity |
Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human T-lymphocytes is in a concentration range of 1.0-10.0 ng/ml. |
| Expression System |
E. coli |
| Theoretical Molecular Weight |
8.1 kDa |
| Formulation |
Lyophilized from a 0.2 μm filtered solution in 20 mM PB, pH 7.4, 150 mM NaCl. |
| Reconstitution |
It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/ml. |
| Storage & Stability |
Upon receiving, this product remains stable for up to 6 months at -70°C or -20°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. Avoid repeated freeze-thaw cycles. |
| Target Background |
CCL17 is a novel CC chemokine recently identified using a signal sequence trap method. CCL17 cDNA encodes a highly basic 94 amino acid residue precursor protein with a 23 aa residue signal peptide that is cleaved to generate the 71 aa residue mature secreted protein. Among CC chemokine family members, CCL17 has approximately 24 - 29% amino acid sequence identity with RANTES, MIP-1α, MIP-1β, MCP-1, MCP-2, MCP-3 and I-309. The gene for human CCL17 has been mapped to chromosome 16q13 rather than chromosome 17 where the genes for many human CC chemokines are clustered. CCL17 is constitutively expressed in thymus, and at a lower level in lung, colon, and small intestine. CCL17 is also transiently expressed in stimulated peripheral blood mononuclear cells. |
| Synonyms |
CCL-17; A-152E5.3; ABCD-2; SCYA17; TARC; C-C motif chemokine ligand 17; C-C motif chemokine 17; Small-inducible cytokine A17; Thymus and activation-regulated chemokine; CC chemokine TARC |
For laboratory research use only. Direct human use, including taking orally and injection and clinical use are forbidden.
