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| Name | MW (kDa) | Main source | Function |
|---|---|---|---|
| Fel d 1 | 30–38 | Saliva | Secretoglobin |
| Fel d 2 | 68 | Dander, sera, urine | Albumin |
| Fel d 3 | 11 | Dander | Cystatin |
| Fel d 4 | 20 | Saliva | Lipocalin |
| Fel d 5 | 24, 28, 64 | Saliva, serum | Immunoglobulin (IgA) |
| Fel d 6 | 28, 94 | Saliva, serum | Immunoglobulin (IgM) |
| Fel d 7 | 18 | Saliva | Lipocalin |
| Fel d 8 | 24 | Saliva | Latherin |
MW, molecular weight.
