| Application | Recommended Dilution |
|---|---|
| ELISA | 1:5000-1:50000 |
CEACAM5, also known as carcinoembryonic antigen (CEA) or CD66e, is a glycosylphosphatidylinositol-anchored cell surface glycoprotein that plays a central role in cell adhesion, migration, and signaling pathways relevant to tumor biology. As one of the most widely studied tumor-associated antigens, CEACAM5 is overexpressed in numerous epithelial malignancies, including colorectal, lung, and pancreatic cancers, making it an important biomarker for cancer research and a compelling target for therapeutic development, including antibody-drug conjugates.
This recombinant monoclonal antibody, clone 11E5, offers the reproducibility and consistency that demanding research applications require. Because recombinant antibodies are produced from defined genetic sequences rather than hybridoma supernatants, you can expect reliable performance across experiments and between lots, eliminating a common source of variability in longitudinal studies or multi-site collaborations. The human IgG1 isotype format and affinity-chromatography purification ensure high purity suitable for sensitive detection methods.
Functional ELISA validation demonstrates robust binding activity against both human and cynomolgus monkey CEACAM5, with EC50 values of 0.64–0.83 ng/mL for human and 3.57–4.04 ng/mL for cynomolgus targets. This cross-species reactivity is particularly valuable for researchers conducting preclinical studies where cynomolgus models serve as relevant surrogates for human biology. The recommended ELISA dilution range of 1:5000 to 1:50000 reflects the antibody's high affinity, allowing economical use across multiple experiments.
Whether your work focuses on oncology biomarker studies, immunological profiling, or stem cell research involving CEACAM5-expressing populations, this antibody provides a dependable tool for investigating this clinically significant target.
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