| 摘要 |
The present invention relates to a modified biotin-binding protein. The modified biotin-binding protein of the present invention includes an amino acid sequence represented by SEQ ID NO: 2, an amino acid sequence having one to several amino acid mutations in the sequence represented by SEQ ID NO: 2, or an amino acid sequence having 80% or more identity to the sequence represented by SEQ ID NO: 2, and having a biotin-binding activity, wherein an aspartic acid residue at position 40 of SEQ ID NO:2 is replaced with an asparagine residue. |
