主权项 |
1. A method for performing a luminescence reaction, which comprises contacting a luciferase mutant with a luciferin, wherein the luciferase mutant is selected from (a) to (e) below:
(a) a luciferase mutant consisting of an amino acid sequence in which at least one amino acid selected from amino acids at the positions of 1 to 4 is deleted in the amino acid sequence of SEQ ID NO: 2; (b) a luciferase mutant consisting of an amino acid sequence in which at least one amino acid selected from amino acids at the positions of 1 to 4 is deleted in the amino acid sequence of SEQ ID NO: 2 and an amino acid sequence excluding the amino acids at the positions of 1 to 4 is an amino acid sequence in which 1 to 17 amino acids are deleted, substituted, inserted and/or added in the amino acid sequence at the positions of 5 to 169 of SEQ ID NO: 2, and having a luciferase activity; (c) a luciferase mutant consisting of an amino acid sequence in which at least one amino acid selected from amino acids at the positions of 1 to 4 is deleted in the amino acid sequence of SEQ ID NO: 2 and an amino acid sequence excluding the amino acids at the positions of 1 to 4 has at least 90% identity to the amino acid sequence at the positions of 5 to 169 of SEQ ID NO: 2, and having a luciferase activity; (d) a luciferase mutant consisting of an amino acid sequence in which at least one amino acid selected from amino acids at the positions of 1 to 4 is deleted in the amino acid sequence of SEQ ID NO: 2 and an amino acid sequence excluding the amino acids at the positions of 1 to 4 is encoded by a polynucleotide which hybridizes under high stringent conditions to a polynucleotide consisting of a nucleotide sequence complementary to a nucleotide sequence encoding the amino acid sequence at the positions of 5 to 169 of SEQ ID NO: 2, wherein the high stringent conditions are 5×SSC, 5×Denhart's solution, 0.5% (w/v) SDS, 50% (v/v) formamide and 50° C., and having a luciferase activity; and, (e) a luciferase mutant consisting of an amino acid sequence selected from SEQ ID NO: 4, SEQ ID NO: 6, SEQ ID NO: 8 and SEQ ID NO: 10. |