Complement Molecule, C1 Complex, Will Bind to an IgG Antibody

Question

Complement molecule, C1 complex, will bind to an IgG antibody at the
A) VLportion.
B) F(ab')2portion.
C) CLportion.
D) Fcportion.
E) J-chain region.

Accepted Answer

The C1 complex binds to the Fc portion of an IgG antibody, which is represented by option C.