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Uncovering the role of leucine 59 in Renilla luciferase stability and activity with error-prone PCR: Implications for
Zahra Fanaei-Kahrani1, Rahman Emamzadeh1, Mahboobeh Nazari2
1Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
Abstract:
A new variant of Renilla luciferase, named Met C-SRLuc 8, was obtained from a random mutagenesis library and expressed in Escherichia coli BL21 (DE3) plys and purified. The results of the enzyme's binding affinity, kinetic stability, and bioinformatic studies demonstrated that leucine 59, located within the hot-spot foldon in the N-terminal domain of the protein, plays a significant role in the stability and activity of Renilla luciferase. These findings may facilitate the engineering of different variants of this enzyme to achieve thermally stable versions for various biotechnological applications.
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