| Code | CSB-RA008424MA1HU |
| Size | US$210 |
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| Application | Recommended Dilution |
|---|---|
| ELISA | 1:5000-1:50000 |
Fibroblast activation protein (FAP) has emerged as a compelling target in cancer research and immunotherapy development due to its selective expression in tumor-associated stromal cells and its near absence in normal adult tissues. This type II transmembrane serine protease plays dual roles through its dipeptidyl peptidase and endopeptidase activities, contributing to extracellular matrix remodeling and tumor microenvironment modulation. FAP's restricted expression pattern makes it particularly attractive for targeted therapeutic approaches and as a biomarker for stromal activation in various malignancies.
This recombinant monoclonal antibody, clone 9B5, offers the reproducibility and consistency that demanding research applications require. Generated against recombinant human FAP protein and expressed as a human IgG1 format, the antibody provides sequence-defined specificity that eliminates the lot-to-lot variability often encountered with traditional hybridoma-derived reagents. This consistency is especially valuable for longitudinal studies or when establishing standardized detection protocols.
Functional ELISA validation demonstrates robust binding activity with sub-nanomolar sensitivity. Testing against immobilized human FAP yielded an EC50 of 0.73–0.91 ng/mL, while cross-species reactivity with cynomolgus FAP showed comparable performance with an EC50 of 0.65–0.82 ng/mL. This dual-species recognition supports translational research workflows where preclinical primate models inform human studies. The recommended ELISA dilution range of 1:5,000 to 1:50,000 reflects the antibody's high functional affinity.
Supplied in a glycerol-based PBS buffer optimized for long-term stability, this antibody serves researchers investigating tumor microenvironment biology, stromal-epithelial interactions, and FAP-targeted therapeutic development.
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