Term Name:	classical-complement-pathway C3/C5 convertase complex
Synonyms:
Definition:	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.
Ontology:	GO: Cellular Component [GO:0005601]    QuickGO    AmiGO