A versatile multidimensional protein purification system with full internet remote control based on a standard HPLC...

Area of Science:

• Biochemistry
• Analytical Chemistry
• Biotechnology

Background:

• Standard Akta Explorer high-performance liquid chromatography (HPLC) systems have limitations in automating multidimensional protein purification.
• Existing protocols restrict column number, sample re-injection volumes, and buffer choices.

Purpose of the Study:

• To describe modifications for automated multidimensional protein purification using the Akta three-dimensional purification kit.
• To introduce a secure, cost-effective remote control technology for HPLC systems via the internet.
• To enhance the flexibility and efficiency of protein purification processes.

Main Methods:

• Implemented simple modifications to the Akta Explorer system to extend the capabilities of the three-dimensional purification kit.
• Developed a secure remote control system using asymmetric digital subscriber line (ADSL) for internet-based machine interaction.
• Established a 4-column purification scheme incorporating equilibration and cleaning-in-place (CIP) procedures.

Main Results:

• The modifications successfully extended column capacity, sample volume flexibility, and buffer options for multidimensional purification.
• The implemented remote control technology allowed for encrypted, full remote operation without hindering local control.
• A 4-column automated scheme reduced processing time by 85% and significantly improved reproducibility compared to manual methods.

Conclusions:

• The described modifications offer a versatile solution for automated multidimensional protein purification, compatible with standard one-dimensional protocols.
• Internet-based remote control of HPLC systems is feasible and cost-effective, enhancing operational efficiency.
• Automated protein purification using the modified Akta system enables overnight processing, increasing throughput and reproducibility.