obsolete classical-complement-pathway C3/C5 convertase activity (obsolete GO:0003813)
OBSOLETE. Catalysis of the selective cleavage of Arg-Ser bond in complement component C3 alpha-chain to form C3a and C3b, and Arg bond in complement component C5 alpha-chain to form C5a and C5b.
C3 convertase activity
broad
C42
related
C423
related
C4b,2a
related
C4b,2a,3b
related
C5 convertase activity
broad
classical-complement-pathway C3/C5 convertase activity
exact
complement C2 activity
broad
complement C3 convertase activity
related
complement C42
related