| P682 | biological process | innate immune response | Q428253 |
| | proteolysis | Q33123 |
| | complement activation, classical pathway | Q5128320 |
| | zymogen activation | Q14861563 |
| | immune system process | Q14916317 |
| P681 | cell component | extracellular space | Q1385443 |
| | extracellular region | Q14645596 |
| P702 | encoded by | C1rl | Q18298083 |
| P703 | found in taxon | house mouse | Q83310 |
| P527 | has part(s) | Serine proteases, trypsin family, serine active site | Q24724853 |
| | CUB domain | Q24774207 |
| | serine proteases, trypsin domain | Q24777164 |
| P680 | molecular function | serine-type peptidase activity | Q14326101 |
| | hydrolase activity | Q14353168 |
| | peptidase activity | Q14645703 |
| | serine-type endopeptidase activity | Q14820947 |
| P361 | part of | peptidase S1A, chymotrypsin family | Q24772777 |
| | Peptidase S1, PA clan | Q24783967 |
| | Spermadhesin, CUB domain superfamily | Q41797064 |
| | CUB domain, protein family | Q83141306 |
| | Serine proteases, trypsin domain, protein family | Q83146087 |
| | Serine proteases, trypsin family, serine active site, protein family | Q95351373 |