IL-21, Human(E. coli)

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. IL-21 Protein, Human (E. coli) is the recombinant human-derived IL-21 protein, expressed by E. coli , with tag free. The total length of IL-21 Protein, Human (E. coli) is 131 a.a., with molecular weight of ~16 kDa.