FUSED PROTEIN COMPRISING PROTEIN G WITH AVIDIN

摘要

[PROBLEMS] To provide an anchor substance which makes it unnecessary to use any chemical binding method such as the coupling method in constructing a labeled antibody (an antibody having a label fixed thereto) to be used for detecting a target antigen and can sufficiently inhibit non-specific binding. [MEANS FOR SOLVING PROBLEMS] A fused protein which contains protein G or a protein comprising a part of the same with an avidin or a protein comprising a part of the same. The labeled antibody as described above contains IgG antibody, the fused protein as described above and a biotinylated label.