Table 2. Linear regression models.

Model name	Linear regression model
Model 1	Y∼H+Γ+H∶Γ+I+H∶I+Γ∶I+ H ∶ I ∶ Γ
Model 2	Y∼H+Γ+H∶Γ+I+ H ∶ I +Γ∶ I
Model 3	Y∼H+Γ+H∶Γ+ I
Model 4	Y∼H+Γ+H∶Γ

The table shows the linear regression models, which are tested on the van Erp dataset. The linear regression models hold the variables genetic background Η, IFN-γ stimulation Γ, and the bacterial strain I. The dependent variable Y is given by gene expression matrix. The fat letters symbolize the additional variables in the model.