Description
IL-21 protein is an immunomodulatory cytokine that promotes the transition from innate immunity to adaptive immunity. It induces B cells to produce IgG(1) and IgG(3), harnessing an effective antibody response to fight viral infections. Animal-Free IL-21 Protein, Human (His) is the recombinant human-derived animal-FreeIL-21 protein, expressed by E. coli, with C-His labeled tag. This product is for cell culture use only