CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
2 | Mainly Beta |
|
2.10 | Ribbon |
|
2.10.70 | Complement Module; domain 1 |
|
2.10.70.10 | Complement Module, domain 1 |
Domain Context
CATH Clusters
| Superfamily | Complement Module, domain 1 |
| Functional Family | Mannan-binding lectin serine protease 1 |
Enzyme Information
| 3.4.21.42 |
Complement subcomponent C1s.
based on mapping to UniProt P09871
Cleavage of Arg-|-Ala bond in complement component C4 to form C4a and C4b, and Lys(or Arg)-|-Lys bond in complement component C2 to form C2a and C2b: the 'classical' pathway C3 convertase.
-!- Activated from proenzyme C1s in plasma by the activated complement subcomponent C1r. -!- Belongs to peptidase family S1.
|
UniProtKB Entries (1)
| P09871 |
C1S_HUMAN
Homo sapiens
Complement C1s subcomponent
|
PDB Structure
| PDB | 5UBM |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
The Structural Basis for Complement Inhibition by Gigastasin, a Protease Inhibitor from the Giant Amazon Leech.
J. Immunol.
|
