Nineteen probes for 16 lupus-relevant genes (Abca1, Apobec3, Ccr7, Ceacam3, Ets1, Foxp3, Hdac1, Ifng, Irf9, Itgam, Jhdm1d, Mmp9, Oscar, Slc4a1, Tbx21, and Tlr7) were identified from the database of male murine spleen. This evidence concerns the gene IRF9 and systemic lupus erythematosus.