| GO | Name |
| GO:0005576 | extracellular region |
| GO:0006958 | complement activation, classical pathway |
| GO:0016021 | integral component of membrane |
| GO:0030449 | regulation of complement activation |
| GO:0045087 | innate immune response |
| GO:0045957 | negative regulation of complement activation, alternative pathway |
| GO:0045959 | negative regulation of complement activation, classical pathway |