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Updated: Jun 6, 2026

In Vitro Directed Evolution of a Restriction Endonuclease with More Stringent Specificity
Published on: March 25, 2020
Harnessing ancestral sequence reconstruction for engineering novel and robust enzymes
Jing-Yi Liu1, Kai-Hao Zhu1, Song You2
1School of Life Sciences and Biopharmaceuticals, Shenyang Pharmaceutical University, Shenyang 110016, China; State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences (CAS), CAS, Shanghai 200032, China.
Ancestral sequence reconstruction (ASR) engineers enzymes for biocatalysis by inferring past sequences. This green manufacturing approach enhances enzyme properties and expands industrial applications.
Area of Science:
- Biocatalysis and Enzyme Engineering
- Computational Biology and Evolutionary Studies
Background:
- Biocatalysis is a key green manufacturing strategy for sustainable synthesis in various industries.
- Ancestral sequence reconstruction (ASR) is a powerful tool for understanding molecular evolution and engineering enzymes.
Purpose of the Study:
- To review recent advances in ancestral sequence reconstruction (ASR) over the past three years.
- To highlight ASR's diverse applications in enzyme engineering and biocatalysis.
Main Methods:
- ASR infers ancestral enzyme sequences by analyzing extant (current) enzyme sequences.
- This computational approach is combined with experimental validation for enzyme engineering.
Main Results:
- ASR facilitates the creation of enzymes with enhanced activity, stability, and selectivity.
- It enables investigation of enzyme function, divergence, and substrate scope expansion.
Conclusions:
- ASR is increasingly central to advancing biocatalytic applications.
- The integration of computational and experimental methods is transforming enzyme engineering and unlocking biocatalyst potential.
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