From fragmented workflows to integrated pipelines: Bridging enzymatic DNA synthesis, assembly, and MutS-based error...

Area of Science:

• Synthetic Biology
• Molecular Biology
• Biotechnology

Background:

• Gene construction at the gene-to-pathway scale is crucial for synthetic biology.
• Current methods for oligonucleotide synthesis, fragment assembly, and error correction are fragmented and disconnected.
• This fragmentation limits the fidelity, throughput, and scalability of DNA sequence construction, especially for large sequences.

Purpose of the Study:

• To review the challenges in current gene construction pipelines.
• To highlight the importance of integrating synthesis, assembly, and error correction.
• To propose a new, integrated, and automated workflow for high-fidelity DNA construction.

Main Methods:

• Tracing error propagation from oligonucleotide synthesis through hierarchical assembly.
• Comparing different DNA error correction strategies.
• Evaluating the potential of enzymatic DNA synthesis for pipeline integration.

Main Results:

• Errors in oligonucleotide synthesis significantly impact downstream assembly.
• MutS-based enzymatic mismatch depletion demonstrates superior error correction efficiency and workflow compatibility.
• Enzymatic DNA synthesis enables aqueous, downstream-compatible processes.

Conclusions:

• An integrated pipeline, not just sequential automation, is necessary for scalable gene construction.
• Combining enzymatic DNA synthesis with MutS-based error correction offers a path to a continuous, automated workflow.
• This integrated approach promises high-fidelity, high-throughput, and scalable DNA sequence construction.