Luciferase-like monooxygenase, LUC, EC 188.8.131.52.
Luciferase is a general term for the class of oxidative enzymes used in bioluminescence and is distinct from a photoprotein. Luciferase catalyzes a bioluminescent reaction which involves the substrate luciferin as well as Mg2+ and ATP, produces green light with a wavelength of 562 nm. Luciferase from firefly is broadly used as a reporter for studying gene regulation and function, and for pharmaceutical screening.
Luciferase produced in E.Coli is a single, non-glycosylated polypeptide chain containing 335 amino acids (1-311 a.a) and having a molecular mass of 38.5kDa.
Luciferase is fused to a 24 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
The Luciferase solution (0.5mg/ml) contains 20mM Tris-HCl (pH8.0), 1mM DTT and 10% glycerol.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.
Greater than 95.0% as determined by SDS-PAGE.
Specific activity is >1x109 light units/mg. One luciferase enzyme units will produce one Relative Light Unit (RLU) at pH7.5 at 25°C.
Amino acid sequence
MGSSHHHHHH SSGLVPRGSH MGSHMTSKVY DPEQRKRMIT GPQWWARCKQ MNVLDSFINY YDSEKHAENA VIFLHGNAAS SYLWRHVVPH IEPVARCIIP DLIGMGKSGK SGNGSYRLLD HYKYLTAWFE LLNLPKKIIF VGHDWGACLA FHYSYEHQDK IKAIVHAESV VDVIESWDEW PDIEEDIALI KSEEGEKMVL ENNFFVETML PSKIMRKLEP EEFAAYLEPF KEKGEVRRPT LSWPREIPLV KGGKPDVVQI VRNYNAYLRA SDDLPKMFIE SDPGFFSNAI VEGAKKFPNT EFVKVKGLHF SQEDAPDEMG KYIKSFVERV LKNEQ.