Synthetic polymers and their potential as genetic materials

Area of Science:

• Biochemistry
• Molecular Biology
• Synthetic Biology

Background:

• Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the sole known natural carriers of genetic information.
• Understanding the fundamental properties of DNA and RNA requires investigating their chemical building blocks: nucleobase, sugar, and phosphate.

Purpose of the Study:

• To investigate the roles of nucleobase, sugar, and phosphate in the function of nucleic acids as genetic material.
• To explore the potential of synthetic polymers to store and propagate genetic information, challenging the uniqueness of DNA and RNA.

Main Methods:

• Systematic chemical modification of DNA and RNA building blocks.
• Assessment of the functional impact of replacing natural moieties with synthetic analogs on replication and information transfer.
• Evaluation of synthetic nucleic acid polymers for their ability to store and propagate information.

Main Results:

• All three primary components of nucleic acids (nucleobase, sugar, phosphate) are crucial for replication.
• Synthetic analogs can replace natural moieties without compromising the genetic function of nucleic acids.
• Synthetic nucleic acid polymers demonstrate the capacity for information storage and propagation.

Conclusions:

• The chemical composition of natural DNA and RNA is not the only solution for genetic information storage.
• Replication can be viewed as an information transfer process, applicable to any polymer capable of such transfer.
• The study expands the central dogma by proposing that any replicable polymer can function as genetic material.