IL12B (Interleukin 12B): IL12B is a gene that encodes the p40 subunit of interleukin-12 (IL-12), a cytokine involved in immune responses. IL-12 plays a critical role in stimulating the immune system's activity against infections and tumors by promoting the production of interferon-gamma (IFN-γ) and the activation of T cells and natural killer (NK) cells....