| Code | CSB-RA004843MA01HU |
| Size | US$210 |
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| Application | Recommended Dilution |
|---|---|
| FC | 1:50-1:200 |
CCR4, also known as C-C chemokine receptor type 4 or CD194, serves as a critical G protein-coupled receptor that mediates the migration and function of specific immune cell populations, particularly regulatory T cells and Th2 helper cells. This receptor's selective expression pattern makes it an invaluable marker for immunological research, with significant implications for studies involving allergic inflammation, autoimmune conditions, and tumor immunology where CCR4-positive cell populations play defining roles.
This recombinant monoclonal antibody, clone 12F5, offers researchers the reproducibility and consistency that only sequence-defined production can provide. Generated against recombinant human CCR4 protein and expressed as a human IgG1 isotype, this antibody eliminates the lot-to-lot variability that can compromise longitudinal studies or multi-site collaborations. The affinity-chromatography purification ensures high purity suitable for sensitive downstream applications.
Validation data demonstrates robust performance across complementary platforms. In functional ELISA testing, the antibody binds immobilized CCR4 with an EC50 range of 362.3 to 630.8 ng/mL, confirming reliable target engagement. Flow cytometry validation using HEK293 cells stably transfected with human CCR4 shows clear discrimination between CCR4-expressing and untransfected populations at a recommended dilution of 1:50 to 1:200, providing researchers with flexibility to optimize signal-to-noise ratios for their specific experimental conditions.
The antibody is supplied in a glycerol-based PBS buffer at pH 7.4 with Proclin 300 preservative, supporting long-term stability when stored at -20°C or -80°C. For investigators studying immune cell trafficking, tumor microenvironment composition, or therapeutic targeting of CCR4-positive populations, this antibody delivers the technical reliability essential for generating publication-quality data.
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