Nucleoside deaminases: the key players in base editing toolkit

Area of Science:

• Molecular Biology
• Biochemistry
• Gene Editing Technologies

Background:

• Base editors utilize nucleoside deaminases for targeted single-base modifications.
• Adenosine and cytidine deaminases mediate adenosine-to-inosine (A-to-I) and cytidine-to-uridine (C-to-U) conversions, respectively.
• These enzymes are crucial for precise genetic alterations.

Purpose of the Study:

• To review current knowledge on deaminases employed in base editing.
• To highlight advancements in enzyme engineering and discovery.
• To discuss the impact on base editor applications and specificity.

Main Methods:

• Review of existing literature on nucleoside deaminases in base editing.
• Analysis of structural features and catalytic mechanisms.
• Examination of enzyme optimization and evolutionary strategies.

Main Results:

• Engineered and novel nucleoside deaminases significantly improve base editing.
• Enhanced enzymes offer broader application scope and increased editing specificity.
• Understanding enzyme structure and mechanism is key to optimization.

Conclusions:

• Nucleoside deaminases are central to the precision and efficiency of base editing.
• Ongoing research in enzyme engineering and discovery continues to expand the potential of base editing technologies.
• Future directions involve further optimization for enhanced specificity and broader therapeutic applications.