CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
|   | 2 | Mainly Beta | 
|   | 2.10 | Ribbon | 
|   | 2.10.25 | Laminin | 
|   | 2.10.25.10 | Laminin | 
Domain Context
CATH Clusters
| Superfamily | Laminin | 
| Functional Family | Complement C1r subcomponent | 
Enzyme Information
| 3.4.21.41 | Complement subcomponent C1r. based on mapping to UniProt P00736 Selective cleavage of Lys(or Arg)-|-Ile bond in complement subcomponent C1s to form the active form of C1s (EC 3.4.21.42). -!- Activates C1s by proteolytic cleavage so that it can, in turn, activate C2 and C4. -!- Activated from proenzyme C1r in plasma by autocatalytic mechanism during activation of the complement system by the 'classical' route. -!- Belongs to peptidase family S1. | 
UniProtKB Entries (1)
| P00736 | C1R_HUMAN Homo sapiens Complement C1r subcomponent | 
PDB Structure
| PDB | 1APQ | 
| External Links | |
| Method | SOLUTION NMR | 
| Organism | |
| Primary Citation | Solution structure of the epidermal growth factor (EGF)-like module of human complement protease C1r, an atypical member of the EGF family. Biochemistry | 
