An isolated polynucleotide encoding a modified luciferase polypeptide and substrates. The OgLuc variant polypeptide has at least 60% amino acid sequence identity to SEQ ID NO: 1 and at least one amino acid substitution at a position corresponding to an amino acid in SEQ ID NO: 1. The OgLuc variant polypeptide has at least one of enhanced luminescence, enhanced signal stability, and enhanced protein stability relative to the corresponding polypeptide of the wild-type
Oplophorus
luciferase.
一种编码修改的荧光酶多核苷酸序列和底物的孤立多核苷酸。OgLuc变异体
多肽与
SEQ ID NO: 1的
氨基酸序列至少有60%的相似性,并且在与
SEQ ID NO: 1中的
氨基酸相对应的位置上至少有一个
氨基酸替换。相对于野生型Oplophoruslucifera
SE的相应
多肽,OgLuc变异体
多肽具有至少一种增强发光度、增强信号稳定性和增强蛋白稳定性的特性。