Human Keratin 20 (KRT20) ELISA Kit

Quantitative measurement of the type I cytokeratin Keratin 20 (KRT20) in human research samples is supported by this Assay Genie ELISA Kit. KRT20 is a ~48 kDa intermediate filament protein expressed predominantly by gastrointestinal epithelium, urothelium, and Merkel cells, and it is widely investigated as a tissue-specific marker in oncology research. Studies use KRT20 levels to help distinguish primary tumor origin in metastatic disease, particularly for colorectal, gastric, and urothelial carcinomas, and to investigate circulating tumor cell populations.

Built for in vitro use in research laboratories, the kit accepts a range of human-derived sample matrices, including serum samples, plasma samples, and tissue homogenates, giving researchers flexibility across translational and basic research workflows. Those investigating epithelial cell differentiation, gastrointestinal pathology, urothelial biology, or tumor biomarker discovery will find this kit useful for both targeted studies and broader screening campaigns.

Each kit includes the reagents needed to run the assay on a standard microwell plate, with an absorbance-based readout compatible with conventional microplate readers. The human-specific reactivity profile makes the kit appropriate for studies where species cross-reactivity must be minimized, and the product is supplied as a complete kit intended for research use only.