Recombinant human Claudin 6 protein - Active (His tag)

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Claudin 6 also known as CLDN6 is a transmembrane protein belonging to the claudin family. This family is critical in forming tight junctions between cells which regulate the paracellular barrier functions of epithelia. The molecular mass of claudin 6 is approximately 23 kDa. Researchers have observed its expression mainly in embryonic tissues and certain cancer types. In normal adult tissues it shows limited expression indicating a specific role during early developmental stages.

Biological function summary

Claudin 6 participates in the formation and maintenance of tight junctions in epithelial cells. It is part of a larger complex that includes multiple claudins and other tight junction proteins like occludin and zonula occludens-1. This complex maintains cellular polarity and controls the flow of ions and molecules between cells which is essential for tissue homeostasis. Its expression pattern suggests a role in cell differentiation and proliferation during embryogenesis and tumorigenesis.

Pathways

Various studies indicate that claudin 6 is involved in the Wnt signaling pathway which is key in embryonic development and cell differentiation. This pathway interacts with several other proteins including β-catenin to mediate gene expression and cellular functions. Additionally claudin 6 contributes to pathways influencing the epithelial-mesenchymal transition (EMT) a process necessary for organ development and cancer metastasis. Through these pathways claudin 6 interacts with diverse proteins to modulate cell behavior.

Researchers have linked claudin 6 to certain cancers particularly ovarian and breast cancer. Its aberrant expression may contribute to tumor progression and invasiveness. Claudin 6 can promote changes in the tumor microenvironment by interacting with other cell junction proteins possibly influencing cancer cell proliferation and spread. Furthermore its altered expression is noted in immune disorders suggesting potential roles in pathogenesis through interactions with immune cells or signaling molecules like cytokines within the immune pathways.