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Highly efficient peptide separations in proteomics Part 1. Unidimensional high performance liquid chromatography.
Koen Sandra1, Mahan Moshir, Filip D'hondt
1Pronota NV, Technologiepark 4, VIB Bio-incubator, B-9052 Zwijnaarde/Ghent, Belgium. koen.sandra@pronota.com
Summary
Advances in liquid separation techniques enhance proteome analysis by improving resolving power for mass spectrometry (MS). This review covers unidimensional and multidimensional liquid chromatography to overcome sample complexity and dynamic range challenges in proteomics.
Area of Science:
- Proteomics
- Analytical Chemistry
- Biochemistry
Background:
- Proteome analysis faces significant challenges in sample complexity and dynamic range.
- Mass spectrometry (MS), a key proteomics technology, has limitations in complexity tolerance, dynamic range, and ion suppression.
- Minimizing component overlap is crucial for successful protein identification and quantification via MS.
Purpose of the Study:
- To review recent advancements in liquid-based separation techniques for proteomics.
- To highlight developments aimed at increasing the resolving power of these separation methods.
- To discuss strategies for overcoming MS limitations in proteome analysis.
Main Methods:
- Review of unidimensional liquid chromatography, with a focus on reversed-phase High-Performance Liquid Chromatography (HPLC).
- Discussion of bi- and multidimensional liquid-based separation techniques.
- Analysis of impacts from column length, particle size, and monolithic columns in HPLC.
Main Results:
- Increased column length, decreased particle diameter, and monolithic columns enhance chromatographic separation.
- These improvements boost resolving power, crucial for minimizing complexity in proteomic samples.
- Reversed-phase HPLC remains the preferred technique for hyphenation with MS.
Conclusions:
- Liquid-based separation techniques are vital for advancing proteome analysis.
- Optimizing separation methods directly addresses the limitations of mass spectrometry.
- Continued development in chromatography is essential for comprehensive proteomic studies.
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