Target antigens in ANCA positive sera
| cANCA | Proteinase 3 (PR3), bactericidal/permeability increasing protein (BPI), azurocidin |
| pANCA | Myeloperoxidase (MPO), cathepsin G, lysozyme, glucuronidase, elastase |
| Atypical or pANCA | Lactoferrin, α-enolase, catalase, non-histone chromosomal protein |