Non canonical genetic material

Area of Science:

• Synthetic biology
• Molecular biology
• Genetics

Background:

• Natural nucleic acids (DNA and RNA) form the basis of genetic information.
• Modifications to nucleic acids aim to expand their scope and capabilities.
• Synthetic alternatives offer novel ways to store and transfer genetic information.

Purpose of the Study:

• To review recent progress in Xenobiotic nucleic acids (XNAs) and unnatural base pairs (UBPs).
• To highlight applications of XNAs and UBPs in genomic DNA and aptamers.
• To describe advancements in replacing bacterial genomes with unnatural nucleotides.

Main Methods:

• Development of synthetic nucleic acid alternatives (XNAs) via base or backbone modification.
• Engineering of unnatural base pairs (UBPs) to supplement natural base pairs.
• Integration of XNAs and UBPs into biological systems, including bacterial genomes.

Main Results:

• Xenobiotic nucleic acids (XNAs) demonstrate potential for storing and transferring genetic information.
• Unnatural base pairs (UBPs) increase information content by introducing a third base pair.
• Successful replacement of bacterial genomes with unnatural non-canonical nucleotides has been achieved.

Conclusions:

• XNAs and UBPs represent significant advancements in synthetic biology.
• These synthetic nucleic acids offer new possibilities for biostable aptamers and genomic engineering.
• Further research promises expanded applications for artificial genetic systems.