High-performance liquid chromatography of proteins

Area of Science:

• Biochemistry
• Analytical Chemistry
• Biotechnology

Background:

• Enzyme analysis is crucial for diagnosing various medical conditions.
• Existing methods for iso-enzyme separation and detection can be time-consuming and complex.
• There is a need for rapid, specific, and sensitive analytical techniques for enzyme profiling.

Purpose of the Study:

• To develop and validate a novel post-column enzyme detector for sensitive enzyme analysis.
• To demonstrate the detector's capability in separating and quantifying multiple enzyme iso-enzymes.
• To establish a rapid assay for creatine phosphokinase and lactic dehydrogenase iso-enzymes.

Main Methods:

• Proteins were separated using microparticulate bonded phase steric exclusion and anion-exchange chromatography.
• A specific and sensitive post-column enzyme detector was engineered for real-time detection.
• Assays were performed for creatine phosphokinase and lactic dehydrogenase iso-enzymes.

Main Results:

• The developed post-column enzyme detector provided specific and sensitive responses for enzymes.
• Three iso-enzymes of creatine phosphokinase were successfully separated and assayed within 4 minutes.
• Five iso-enzymes of lactic dehydrogenase were successfully separated and assayed within 6 minutes.

Conclusions:

• The novel post-column enzyme detection system offers a rapid and efficient method for iso-enzyme analysis.
• This technique significantly reduces assay times for key diagnostic enzymes.
• The developed method holds potential for clinical diagnostics and biochemical research.