Mass Spectrometry Peak Selection With Dynamic Cross-View Labeling
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Solution Overview
Problem
Current mass spectrometry (MS)-based assays lack high-quality data analysis software capable of efficiently characterizing protein pharmaceuticals, particularly in distinguishing true from false positive identifications of sequence variants and modifications, which is crucial for biopharmaceutical quality assurance and biosimilar development.
Innovation Solution
An integrated user-friendly dashboard for MS-based analysis that allows interactive selection and visualization of deconvolved mass spectra, enabling users to distinguish real peaks from background noise and confirm the reasonableness of peak patterns, supported by graphical user interfaces and software that facilitate simultaneous display of MS1 and MS2 spectra.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional MS-based assays are used for protein characterization, then comprehensive measurement of physicochemical properties is achieved, but the analysis time and complexity increase significantly
Solution Approach 1:
The patent segments the complex MS data analysis into multiple visual representations (mass spectrum view, chromatogram view, sequence view, modification view) that can be independently examined. This segmentation allows analysts to focus on specific aspects of protein characterization without being overwhelmed by the complete dataset, thereby reducing analysis time while maintaining comprehensive characterization accuracy.
Solution Approach 2:
The patent introduces an integrated software dashboard as an intermediary between the raw MS data and the analyst. This dashboard automatically processes, integrates, and presents data from multiple MS experiments (MS1, MS2, HDX-MS, etc.) in a unified interface, eliminating the need for manual data consolidation and reducing analysis time while preserving measurement precision.
2Loss of information
If multiple spectral representations are displayed simultaneously, then data comprehensiveness is improved, but interface complexity increases
Solution Approach 1:
The patent divides the comprehensive MS data into distinct visual modules (mass spectrum view, chromatogram view, sequence view, modification view), each presenting specific types of information in a dedicated format. This segmentation allows the interface to display multiple representations simultaneously without creating a chaotic layout, as each view is self-contained and purpose-specific.
Solution Approach 2:
The patent adds a temporal dimension to the interface by allowing dynamic switching between different views and by presenting data in a sequence that reflects the analytical workflow. The integrated dashboard evolves from showing raw spectra to presenting interpreted results, transforming the static complexity into a dynamic, multi-stage presentation that reduces perceived interface complexity.
3Reliability
If interactive selection and dynamic labeling are implemented, then user confidence in peak identification is enhanced, but software complexity increases
Solution Approach 1:
The patent implements interactive selection and dynamic labeling features that provide immediate visual feedback when users select peaks or regions in the mass spectrum. The software dynamically updates labels, highlights related features in other views, and provides contextual information about selected features. This feedback mechanism increases user confidence in peak identification by making the software's interpretation transparent and verifiable.
Solution Approach 2:
The patent enables users to perform their own validation of peak assignments through interactive exploration of the data. Users can select potential peaks, dynamically view associated information (chromatogram peaks, sequence assignments, modification types), and confirm identifications independently. This self-service capability increases reliability by empowering users to verify results without relying solely on automated annotations.
Data Source
AI summary
This invention relates to graphical user-interactive displays for use in MS-based analysis of protein impurities, as well as methods and software for generating and using such. One aspect provides a user-interactive display comprising interactive and dynamic selection of one or more masses and concurrent display of peaks (points) corresponding to that predicted mass value across other displays (MS1, deconvolved mass spectrum, mass extracted ion chromatogram, etc.).