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Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
Published on: November 15, 2017
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Deep and quantitative top-down proteomics in clinical and translational research
Neil L Kelleher1, Paul M Thomas, Ioanna Ntai
1Northwestern University, 2145 N. Sheridan Rd, Evanston, IL, 60208, USA.
Expert Review of Proteomics
|October 29, 2014
Summary
Measuring unique protein forms, called proteoforms, precisely is key for understanding cell function. This advancement will significantly boost the value of mass spectrometry in medical research and diagnostics.
Area of Science:
- Proteomics
- Molecular Biology
- Cellular Biology
Background:
- Proteins are the primary regulators of cell fate and function.
- Post-translational modifications create diverse protein forms (proteoforms).
Discussion:
- Accurate measurement of proteoform expression differences is crucial.
- Mass spectrometry offers a powerful tool for proteoform analysis.
Key Insights:
- Complete molecular specificity in proteoform measurement is achievable.
- Improved proteoform analysis enhances translational research.
- Enhanced proteoform detection aids clinical diagnostics.
Outlook:
- This capability promises to increase the return on investment for mass spectrometry.
- Advances in proteoform analysis will drive new discoveries in cell biology.
- Precision medicine can benefit from detailed proteoform profiling.

