| abstract |
In order to establish an antigen detection means capable of simply and quickly detecting an antigen and having excellent detection sensitivity, etc., this fusion protein contains an enzyme variant which is activated by multimeric formation, a linker peptide linked to the enzyme variant, and the V H domain or V L domain of an antibody which binds to the linker peptide, and is characterized in that the enzyme variant has an introduced mutation which reduces linking affinity between monomers. |