Anti-SSA autoantibodies (also called anti-Ro, or the combination anti-SSA/Ro or anti Ro/SSA autoantibodies) are anti-nuclear autoantibodies that are associated with among many autoimmune diseases, such as systemic lupus erythematosus (SLE), SS/SLE overlap syndrome, subacute cutaneous LE (SCLE), neonatal lupus and primary biliary cirrhosis. Also, they are often present in Sjögren's syndrome. 
Ro protein binds to Y RNA
Approximately only 0.1 to 0.5 percent of the general population has the antibody.
- Franceschini, F.; Cavazzana, I. (2005). "Anti-Ro/SSA and La/SSB antibodies". Autoimmunity 38 (1): 55–63. doi:10.1080/08916930400022954. PMID 15804706.
- Franceschini F, Cavazzana I (February 2005). "Anti-Ro/SSA and La/SSB antibodies". Autoimmunity 38 (1): 55–63. doi:10.1080/08916930400022954. PMID 15804706.
- V Goëb et al. (2007). "Clinical significance of autoantibodies recognizing Sjögren's syndrome A (SSA), SSB, calpastatin and alpha-fodrin in primary Sjögren's syndrome". Clin. Exp. Immunol. 148 (2): 281–7. doi:10.1111/j.1365-2249.2007.03337.x. PMC 1868868. PMID 17286756.
- James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. Page 160. ISBN 0-7216-2921-0.
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