CATH Classification

Domain Context

CATH Clusters

Superfamily Trypsin-like serine proteases
Functional Family Complement factor I

Enzyme Information

3.4.21.45
Complement factor I.
based on mapping to UniProt P05156
Inactivates complement subcomponents C3b, iC3b and C4b by proteolytic cleavage.
-!- Cleavage of complement subcomponent C3b requires its binding to cofactor H or complement receptor CR1; cleavage of iC3b requires complement receptor CR1; cleavage of C4b requires C4b-binding protein. -!- Belongs to peptidase family S1.

UniProtKB Entries (1)

P05156
CFAI_HUMAN
Homo sapiens
Complement factor I

PDB Structure

PDB
External Links
Method
Organism
Primary Citation
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