Multichannel PCR and serial transfer machine as a future tool in evolutionary biotechnology

Area of Science:

• Biotechnology
• Molecular Biology
• Biochemistry

Background:

• In vitro evolutionary optimization is crucial for developing functional macromolecules.
• Existing methods face challenges with sample handling, contamination, and evaporation.
• High-throughput screening is essential for accelerating evolutionary processes.

Purpose of the Study:

• To develop and validate an automated high-throughput system for in vitro evolutionary optimization.
• To assess the impact of a novel heat-sealing technique on polymerase activity and sample integrity.
• To demonstrate the system's suitability for serial amplification rounds in evolutionary biotechnology.

Main Methods:

• Design and implementation of a 960-well automated machine utilizing Polymerase Chain Reaction (PCR) technology.
• Employment of specially sealed plastic reaction vessels to prevent cross-contamination and evaporation.
• Evaluation of heat-sealing impact on Taq DNA Polymerase and Q beta RNA polymerase activity.
• Serial transfer of reaction products for iterative amplification cycles.

Main Results:

• The automated machine successfully processes up to 960 samples in parallel.
• Heat-sealing technique does not significantly inhibit Taq DNA Polymerase or Q beta RNA polymerase activity.
• The system effectively prevents sample cross-contamination and evaporation.
• Uniform sample processing and thermocycling were demonstrated.

Conclusions:

• The developed automated system offers an improved strategy for producing functional macromolecules via in vitro evolutionary optimization.
• The heat-sealing method is compatible with essential enzymatic activities, ensuring reliable experimental outcomes.
• This high-throughput approach is well-suited for advanced evolutionary biotechnology applications, enabling accelerated discovery.