Recombinant Human CCL17/TARC Protein
R&D Systems, part of Bio-Techne | Catalog # 364-DN
Key Product Details
Product Specifications
Source
E. coli-derived human CCL17/TARC protein
Ala24-Ser94
Ala24-Ser94
Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<0.01 EU per 1 μg of the protein by the LAL method.
N-terminal Sequence Analysis
Ala24
Predicted Molecular Mass
8 kDa
Activity
Measured by its ability to chemoattract BaF3 mouse pro-B cells transfected with human CCR4.
The ED50 for this effect is 2-6 ng/mL.
The ED50 for this effect is 2-6 ng/mL.
Reviewed Applications
Read 1 review rated 5 using 364-DN in the following applications:
Formulation, Preparation and Storage
Carrier Free
What does CF mean?CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
What formulation is right for me?In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
Carrier: 364-DN
| Formulation | Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA with BSA as a carrier protein. |
| Reconstitution | Reconstitute at 50 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Carrier Free: 364-DN/CF
| Formulation | Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Background: CCL17/TARC
CCL17 is a novel CC chemokine identified using a signal sequence trap method. CCL17 cDNA encodes a highly basic 94 amino acid (aa)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-1 alpha, MIP-1 beta, 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. Recombinant CCL17 has been shown to be chemotactic for T cell lines but not monocytes or neutrophils. CCL17 was identified to be a specific functional ligand for CCR4, a receptor that is selectively expressed on T cells.
References
- Imai, T. et al. (1997) J. Biol. Chem. 272:15036.
- Imai, T. et al. (1996) J. Biol. Chem. 271:21514.
- Nomiyama, H. et al. (1997) Genomics 40:211.
Alternate Names
ABCD-2, SCYA17, TARC
Gene Symbol
CCL17
UniProt
Additional CCL17/TARC Products
Product Documents for Recombinant Human CCL17/TARC Protein
Product Specific Notices for Recombinant Human CCL17/TARC Protein
For research use only
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