Synthesis of γ-labeled nucleoside 5'-triphosphates using click chemistry

Area of Science:

• Biochemistry and Molecular Biology
• Organic Chemistry
• Chemical Biology

Background:

• Real-time enzymatic studies are crucial for understanding biological processes.
• Advancements in chemical and technical instrumentation are enabling more sophisticated enzymatic assays.
• The development of novel labeling and incorporation methods for nucleotides is essential for advanced molecular biology techniques.

Purpose of the Study:

• To report the efficient synthesis of novel γ-alkyne modified triphosphate amidates.
• To demonstrate the conversion of these amidates into γ-fluorophore labeled triphosphates using click chemistry.
• To show the utility of these labeled triphosphates in DNA synthesis by DNA polymerases.

Main Methods:

• Synthesis of γ-alkyne modified triphosphate amidates.
• Copper(I)-catalyzed alkyne/azide click reactions for fluorophore conjugation.
• Incorporation of synthesized triphosphates into DNA using enzymatic methods with DNA polymerases.

Main Results:

• Efficient synthesis of γ-alkyne modified triphosphate amidates was achieved.
• A variety of γ-fluorophore labeled triphosphates were successfully generated via click chemistry.
• The synthesized fluorophore-labeled triphosphates were effectively incorporated into DNA by DNA polymerases.

Conclusions:

• The developed synthetic route provides access to versatile fluorophore-labeled triphosphates.
• These labeled triphosphates are suitable substrates for DNA polymerases, enabling their use in various enzymatic studies.
• This work contributes to the development of advanced tools for real-time enzymatic and molecular biology research.