| Brain-derived neurotrophic factor (BDNF) | 13.6 | Found via general search |
| C1-inhibitor | 100 | Found via general search |
| C1q (Complement component 1q) | 400 | 601508 |
| C1r (Complement component 1r) | 80 | Found via general search |
| C1s (Complement component 1s) | 81 | 601508 |
| C1s inactivator | 104 | 601508 |
| C2 (Complement component 2) | 100 | Found via general search |
| C3 (Complement component 3) | 180 | 10946020 |
| C3 PA (properdin factor B) | 80 | Found via general search |
| C3c (Complement component 3c) | 137 | Found via general search |
