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Home / Proteins & Peptide

Recombinant Human TARC (rHuTARC/CCL17)

SKU : BHP11300460

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Mfr.No.	PR1118
Antigen	TARC
Description	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. Recombinant CCL17 has been shown to be chemotactic for T cell lines but not monocytes or neutrophils. CCL17 was recently identified to be a specific functional ligand for CCR-4, a receptor that is selectively expressed on T cells.
Regulatory	RUO
Source	Escherichia coli.
Host	Human
Endotoxin Level	Less than 1EU/mg of rHuTARC/CCL17 as determined by LAL method.
Biological Activity Comment	Fully biologically active when compared to standard. Determined by its ability to chemoattract human T cells using a concentration range of 1.0-10.0 ng/ml, corresponding to a Specific Activity of ＞1 x 105 IU/mg.
Nature	Recombinant

Weight	8.0kDa, a single non-glycosylated polypeptide chain containing 71 amino acids.

Description	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.
Format	Lyophilized from a 0.2mm filtered concentrated solution in 20mM PB, pH 7.4, 150mM NaCl. Sterile Filtered White lyophilized (freeze-dried) powder.
Purity	>97% by SDS-PAGE and HPLC analyses.
Storage	This lyophilized preparation is stable at 2-8°C, but should be kept at -20°C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8°C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20°C to -70°C. Avoid repeated freeze/thaw cycles.

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SKU	Supplier No.	Size	Your price	Quantity
BHP11300460	PR1118	5μg	$205.56		Add to Cart
BHP11300460	PR1118	20μg	$383.33		Add to Cart

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