Molecular evolution of functional nucleic acids with chemical modifications

Area of Science:

• Biochemistry and Molecular Biology
• Synthetic Biology
• Chemical Biology

Background:

• Nucleic acids serve as versatile building blocks for functional molecules, including catalysts, binders, and switches.
• In vitro selection methods have been instrumental in discovering and evolving functional nucleic acids, such as enzymes and aptamers.
• Chemical modifications are crucial for expanding the capabilities and improving the properties of nucleic acids.

Purpose of the Study:

• To review the impact of chemical modifications on the evolution of functional nucleic acids.
• To explore how combining chemical modifications with screening and design strategies advances nucleic acid technology.
• To discuss the future outlook for chemically modified functional nucleic acids.

Main Methods:

• In vitro selection (SELEX) for identifying functional nucleic acids.
• Chemical modification strategies applied during or after SELEX.
• Rational design approaches for engineering nucleic acid functions.
• Integration of diverse methodologies for enhanced nucleic acid development.

Main Results:

• Chemical modifications significantly enhance nucleic acid performance, including catalytic activity, binding specificity, and biostability.
• The combination of chemical modification with selection and design methods has led to novel functional nucleic acids.
• Advancements in chemical modification techniques have broadened the scope of achievable nucleic acid functions.
• Chemically modified nucleic acids show promise for diverse applications in biotechnology and medicine.

Conclusions:

• Chemical modifications are essential for unlocking the full potential of nucleic acids as functional molecules.
• Integrating chemical modification with advanced screening and design offers a powerful platform for creating next-generation functional nucleic acids.
• The field is poised for continued innovation, leading to new applications and a deeper understanding of nucleic acid capabilities.