classical-complement-pathway C3/C5 convertase complex

id: GO:0005601
name: classical-complement-pathway C3/C5 convertase complex
namespace: cellular_component
type: go
obsolete: False

Description: A heterodimeric protein complex that catalyzes the cleavage of complement components C3 and C5, and acts in the classical pathway of complement activation; consists of one monomer of C2a and one monomer of C4b; C2a is the catalytic subunit, but cannot catalyze cleavage alone.

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