Fig 2: Comparison of MHC class I molecules H-2Kb, Qa-2 and Qa-1b in NK cells derived from spleens of the B6 and TAP-KO strains. The NK cells were expanded for 18 hours in the presence of IL-2 and stimulated with (IL-2, IL-12, IL-15) or (IL-2, IL-12, IL-18) with an IL-2 only control group as well. The expression levels were checked in the NK cell subsets defined by the presence or absence of NKG2A and Ly49C/I. Statistical analysis was performed using GraphPad Prism 9.0.0 with an ordinary two-way ANOVA with Tukey’s multiple comparisons tests (n=3). *, p<0.05, **, p<0.01, ***, p<0.001 and ****, p<0.0001.