Thus, DM muscle, DM and lupus skin, and HSV-2 are furthest to the right, while psoriasis, DM and lupus blood, and selected systemic sclerosis and atopic dermatitis samples all are modestly displaced to the right from all other skin diseases that are clustered together on the left—this is in general agreement with our IFN scoring data (Fig. 4B). The gene discussed is IFNA1; the disease is systemic lupus erythematosus.