Ab, antibody; dsDNA, double-stranded DNA; EIA, enzyme immunoassay; CCP, cyclic citrullinated peptide; DRVVT, dilute Russell's viper venom time; ANCA, antineutrophil cytoplasmic antibodies; EJ, eukaryotic initiation factor; OJ, antibody against isoleucyl-tRNA synthetase; SRP, signal recognition particle; MI, nucleosome remodeling deacetylase complex protein; RNP, ribonucleoprotein; CADM, clinically amyopathic dermatomyositis; NXP-2, nuclear matrix protein 2; TIF, transcription intermediary factor 1-gamma; SS, Sjogren syndrome; SAE, small ubiquitin-like modifier activating enzyme. The gene discussed is UCN2; the disease is synovial sarcoma.