×

Network disruptions

We have been experiencing disruptions on our local network which has affected the stability of these web pages. We have been working with IT support team to get this fixed as a matter of urgency and apologise for any inconvenience.

CATH Classification

Domain Context

CATH Clusters

Superfamily Complement Module, domain 1
Functional Family Complement factor b,-like

Enzyme Information

3.4.21.43
Classical-complement-pathway C3/C5 convertase.
based on mapping to UniProt P06681
Selective cleavage of Arg-|-Ser bond in complement component C3 alpha- chain to form C3a and C3b, and Arg-|-Xaa bond in complement component C5 alpha-chain to form C5a and C5b.
-!- A complex of complement fragments C4b, C2a and C2b. -!- Belongs to peptidase family S1. -!- Formerly EC 3.4.21.44.

UniProtKB Entries (1)

P06681
CO2_HUMAN
Homo sapiens
Complement C2

PDB Structure

PDB 3ERB
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
The structure of C2b, a fragment of complement component C2 produced during C3 convertase formation
Krishnan, V., Xu, Y., Macon, K., Volanakis, J.E., Narayana, S.V.
Acta Crystallogr.,Sect.D
CATH-Gene3D is a Global Biodata Core Resource Learn more...