From: Autoantibodies in rheumatoid arthritis and their clinical significance
Antibody (year) | Antigen (year) | Sensitivity (%) | Specificity (%) | References |
---|---|---|---|---|
Antikeratin (1979) | Filaggrin (1993) | 40 | 92–99 | |
Anticitrullinated peptides (1998) = deiminated arginine identified in filaggrin (1999) and in fibrin (2001) | 53* | 96 | ||
Anti-RA33 (1989) | hnRNP-A2 (1992) | 32 | 90–96† | |
Anti-Sa (1994) | 50 kDa protein, unidentified | 42 | 98 | |
Anti-p68 (1995) | BiP/grp78 (2001) | 40 | 96 |