Abcam, ab202781, Recombinant human TARC/CCL17 protein (Active)

Size: 5µg
Recombinant human TARC/CCL17 protein (Active) is a Human Full Length protein, in the 24 to 94 aa range, expressed in Escherichia coli, with >97%, < 1 EU/µg endotoxin level, suitable for SDS-PAGE, FuncS, HPLC.
Key facts
Purity:>97% SDS-PAGE,
Endotoxin level:< 1 EU/µg,
Expression system:Escherichia coli,
Tags:Tag free,
Applications:FuncS, HPLC, SDS-PAGESee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Biologically active:Yes,
Biological activity:Determined by its ability to chemoattract Human T cells using a concentration range of 1.0-10.0 ng/ml.,
Accession:Q92583,
Animal free:No,
Carrier free:No,
Species:Human,
Reconstitution: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.,
Storage buffer:pH: 7.4Constituents: 99% Phosphate Buffer, 0.87% Sodium chloride

Product details:
This product was previously labelled as TARC

Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon reconstitution add a carrier protein (0.1% BSA), Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
TARC also known as CCL17 is a chemokine with a molecular mass of approximately 8 kDa. It is mainly expressed in the thymus but also found in the lung liver and lymph nodes. CCL17 plays an important role in immune response by signaling through the CCR4 receptor. It functions as a ligand that guides the movement of T-helper 2 (Th2) cells regulatory T cells (Tregs) and other immune cells to sites of inflammation.
Biological function summary
CCL17 acts as a chemotactic agent attracting specific immune cells especially T lymphocytes to inflammatory regions. This protein does not operate as part of a larger protein complex but engages directly by binding to receptors on the target immune cells. Localized expression of CCL17 increases in conditions where enhanced Th2 cell response is needed such as allergic or autoimmune responses.
Pathways
CCL17 plays a significant role in the cell signaling pathway called the chemokine signaling pathway. Through this pathway CCL17 interacts with the CCR4 receptor which helps mediate immune cell migration and adhesion. This interaction is critical for establishing the adaptive immune response. CCL17 and CCR4 support the trafficking of Th2 cells during immune reactions and pathogen defense.
CCL17 associates with asthma and atopic dermatitis where Th2 cell recruitment and activity are heightened. In asthma increased CCL17 levels exacerbate inflammatory response in the airways. In atopic dermatitis CCL17 presence corresponds with the intensity of the skin inflammation. These conditions are linked to the overactivity of Th2 cytokines such as IL-4 (H4L3) which collaborate with CCL17 to drive allergic responses.