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Updated: Feb 24, 2026

Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
Published on: November 15, 2017
Structural coverage of the proteome for pharmaceutical applications.
Joseph C Somody1, Stephen S MacKinnon1, Andreas Windemuth1
1Cyclica Inc., 18 King Street East, Suite 810, Toronto, Ontario M5C 1C4, Canada.
The
Area of Science:
- Computational drug discovery
- Structural biology
- Genomics
Background:
- Traditional drug discovery relies on single-target structures.
- Proteome-scale analysis for polypharmacology and target deconvolution is limited by structural data.
- A significant 'structure gap' historically hindered in silico approaches.
Purpose of the Study:
- To assess the current structural coverage of the human proteome.
- To determine the feasibility of proteome-wide molecular docking for drug discovery.
- To evaluate the potential for structure-based approaches in target deconvolution and polypharmacology analysis.
Main Methods:
- Survey of publicly available protein structure data.
- Analysis of structural coverage across the human genome.
- Categorization of proteins based on pharmaceutical relevance.
Main Results:
- Human genome structural coverage is now proteome-wide.
- Significant progress in closing the 'structure gap' for most protein categories.
- Structure-based computational methods are becoming viable for large-scale applications.
Conclusions:
- The "structure gap" has been largely closed, enabling proteome-wide structure-based drug discovery.
- Structure-based approaches are now feasible for target deconvolution and polypharmacology.
- The current era supports the widespread application of in silico structure-based methods.
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