TRIM21 and rubella: Furthermore, anti-ANA-IgG in serum was mildly positive, but a wide spectrum of antibodies (anti-nRNP, anti-Sm, anti-SS-A, anti-Ro-52, anti-SS-B, anti-Scl-70, anti-Jo-1, anti-ACA, anti-AnuA, anti-AHA, anti-ARPA, anti-AMA-M2, anti-PCNA, anti-PM-Scl100, anti-HHV-1-IgG, anti-HHV-2-IgG, anti-Toxo-IgM, anti-CMV-IgM, anti-Rubella-IgM) in serum were normal.