Data-driven enzyme immobilisation: a case study using DNA to immobilise galactose oxidase

Area of Science:

• Biochemistry
• Green Chemistry
• Nanotechnology

Background:

• Biocatalysis offers a sustainable route to chemical synthesis.
• Enzyme immobilization is crucial for improving stability and purification.
• DNA nanotechnology provides a scaffold for designing enzyme cascades.

Purpose of the Study:

• To investigate the use of DNA nanostructures for enzyme immobilization.
• To enhance the activity and stability of enzymes under industrially relevant conditions.
• To demonstrate the potential for producing bioplastics from lignin.

Main Methods:

• Rational design of DNA nanostructures for enzyme scaffolding.
• Immobilization of a galactose oxidase mutant on DNA nanostructures.
• Assessing enzyme activity and stability in cell-free extracts.

Main Results:

• DNA nanostructures significantly enhanced the activity and stability of a galactose oxidase mutant.
• Enzyme enhancement was achieved in crude cell-free extracts, improving cost-effectiveness.
• Demonstrated potential for using immobilized enzymes in a cascade for bioplastic production.

Conclusions:

• DNA nanostructures are effective scaffolds for enzyme immobilization, improving performance in crude reaction conditions.
• This approach facilitates the development of cost-effective biocatalytic processes for green chemistry.
• Enables future research into multienzyme cascades for sustainable chemical synthesis.