[80], we categorized our melanoma cell lines based on their MHC II expression as follows: 1205Lu‐phenotype 2 (inducible MHC II), WM1366‐phenotype 3 (partial constitutive expression), and WM793‐ and WM3734a‐phenotype 4 (constitutive MHC II, enhanced by IFNγ). The gene discussed is IFNG; the disease is melanoma.