Technical Articles

FITC-Labeled CD19 Fc Chimera is a recombinant protein consisting of the extracellular domain of human CD19 fused to the Fc fragment of immunoglobulin G (IgG) and labeled with fluorescein isothiocyanate (FITC). As a critical tool for B cell research and diagnostics, it does not directly cause disease but serves as an indispensable reagent for studying B cell-related disorders such as B cell lymphoma, leukemia, autoimmune diseases, and immunodeficiency disorders.

IL-7Rα (CD127), as the specific alpha chain of the interleukin-7 receptor, is the key molecule mediating the biological functions of IL-7. This type I transmembrane protein is widely expressed in both lymphoid organs (such as bone marrow, thymus, and lymph nodes) and non-lymphoid tissues (including skin, lung, and liver), forming the structural basis for IL-7 signal transduction.