Luciferases

摘要

A luciferase preparation that retains 85% of more of its luciferase activity when stored at room temperature for 10 days at room temperature in the absence of thermostabilising agent is claimed. In particular, luciferase preparations comprising a mutant form of a wild-type luciferase, said preparation being one that retains a high percentage of more of its luciferase activity when stored under particular conditions are described, together with methods for their preparation and assays using them.