Table 1 Antigenic, functional, and C4 levels of the C1 inhibitor.
Member of the Family | Antigenic Levels (mg/dl) | Functional Levels (%) | C4 Levels (mg/dl) |
|---|---|---|---|
I-2 | 39 | 8 | 6.4 |
I-3 | 26 | 96 | 36 |
II-2 | 28 | 9 | 9.6 |
II-3 | 17.8 | 15 | 7.2 |
II-4 | 23 | 75 | 38 |
III-l | 24 | 10 | 7.3 |
III-2 | 27 | 96 | 23 |
III-3 | 18.3 | 3 | 2.8 |
III-4 | 18.4 | 84 | 34 |
Normal values | 15–35 | >40 | 13–50 |