To further examine the association of HCMVpp65422-439 and TAF9134-144 IgG antibodies, we performed the affinity chromatography to purify anti-HCMVpp65422-439, anti-TAF9134-144, and anti-TAF9 IgG antibodies from pooled sera of immunized mice at 10–12 weeks post-immunization and human SLE. Here, TAF9 is linked to systemic lupus erythematosus.