Description
Recombinant Human Claudin-4 Protein
The Recombinant Human Claudin-4 Protein is a biologically active recombinant protein that plays a significant role in various cellular processes and signaling pathways in human biology. This protein is widely employed in immunological research, cell biology studies, protein-protein interaction analyses, and therapeutic development, providing researchers with a reliable tool for investigating Claudin-4 function and its implications in health and disease.
This product (SKU: RPCB2193) is produced using HEK293 cells and features a No tag tag for convenient detection and purification. The protein exhibits a calculated molecular weight of 23.31 kDa with an observed molecular weight of - under denaturing conditions, achieving ≥ 95 % as determined by SDS-PAGE.≥ 95 % as determined by HPLC.. Functional bioactivity has been validated through rigorous quality control assays, confirming its suitability for demanding research applications.
Key Features
| High Purity by Affinity Chromatography | |
| Mammalian & Bacterial Expression Systems | |
| High lot-to-lot consistency via strict QC |
| Product Name: | Recombinant Human Claudin-4 Protein |
| SKU: | RPCB2193 |
| Size: | 100 μg |
| Reactivity: | Human |
| Synonyms: | Claudin-4, CLDN4, Claudin4, CPE-R, CPE R, CPETR1, WBSCR8 |
| Tag: | No tag |
| Expression Host: | HEK293 cells |
| Calculated MW: | 23.31 kDa |
| Gene ID: | 1364 |
| Protein Description: | High quality, high purity and low endotoxin recombinant Recombinant Human Claudin-4 Protein (RP02997LQ), tested reactivity in HEK293 cells and has been validated in SDS-PAGE.100% guaranteed. |
| Endotoxin: | < 1 EU/μg of the protein by LAL method. |
| Purity: | ≥ 95 % as determined by SDS-PAGE.≥ 95 % as determined by HPLC. |
| Formulation: | Supplied as 0.22μm filtered solution in PBS (pH 7.4). Notice: If you need it for immunization, Do Not use any adjuvant. |
| Bio-Activity: | Immobilized Human Claudin-4 VLP at 1μg/ml (100μl/well) on the plate. Dose response curve for Anti-Claudin 4 Antibody, hFc Tag with the EC 50 of 18.4ng/ml determined by ELISA. |
| Storage: | Store at -70℃. This product is stable at ≤ -70℃ for up to 1 year from the date of receipt. For optimal storage, aliquot into smaller quantities after centrifugation and store at recommended temperature. Avoid repeated freeze-thaw cycles. |
Claudin-4 (CLDN4) is a key component of tight junctions (TJs) in epithelial cells. CLDN4 is overexpressed in many epithelial malignancies and correlates with cancer progression. Changes in CLDN4 expression have been associated with epigenetic factors (such as hypomethylation of promoter DNA), inflammation associated with infection and cytokines, and growth factor signaling. CLDN4 helps to maintain the tumor microenvironment by forming TJs and acts as a barrier to the entry of anticancer drugs into tumors.

