ABMIUM target intelligence
interleukin 21
IL21 identifies interleukin 21 in Homo sapiens (Human). This target record connects NCBI Gene 59067, UniProtKB Q9HBE4 and related ABMIUM catalogue products.
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Research context & evidence
Target information is kept separate from product-level validation so you can review the biology and the reagent evidence independently.
IL21 is an immunoregulatory cytokine produced mainly by activated CD4-positive T-cell subsets and natural killer T cells. Through its receptor complex it influences proliferation, differentiation and effector functions across B cells, T cells, natural killer cells and other immune populations.
IL21 is widely studied in adaptive immunity, T-cell and B-cell differentiation, antibody responses, natural-killer-cell biology and tumour immunology. Reagent selection should consider species, immune-cell context, sample type, assay format, application and supporting validation.
Names used across publications, databases and supplier catalogues.
