Recombinant Human CCL17/TARC

CCL17 is a small cytokine belonging to the CC chemokine and is expressed constitutively in thymus, but only transiently in phytohemagglutinin-stimulated peripheral blood mononuclear cells.¹ This chemokine specifically binds and induces chemotaxis in T cells and elicits its effects by interacting with the chemokine receptor CCR4.^1,2 CCL17 may be a useful serological marker and may facilitate an assessment of the degree of disease activity in systemic lupus erythematosus (SLE).³ It may also participate in the pathogenesis of skin diseases such as atopic dermatitis (AD) by regulating both allergic and irritant inflammation.⁴

The biological activity of Human Thymus and Activation Regulated Chemokine is determined by its ability to chemoattract human T cells using a concentration range of 1.0-10.0 ng/ml.

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Ala24

Lyophilized

The predicted molecular weight of Recombinant Human CCL17 is Mr 8.0 kDa.

8.0

This recombinant protein was lyophilized from a 24.0 μL of a 0.2 μm filtered solution in 30% acetonitrile (CH₃CN) and 0.1% trifluoroacetic acid (TFA).

This lyophilized protein is stable for six to twelve months when stored desiccated at -20°C to -70°C. After aseptic reconstitution, this protein may be stored at 2°C to 8°C for one month or at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions.

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1. Yoshie, O. et al. (1996) J Biol Chem. 271: 21514
2. Yoshie, O et al. (1997) J Biol Chem. 272: 15036
3. Kamatani, N. et al. (2003) J Rheumatology 30: 2369
4. Kunihiko, K. et al. (2006) Eur J Immunol. 36: 2116