Project description:Benchmarking Proteomics Quantitation in DIA-type data using real patient material to create a benchmark dataset comprising inter-patient heterogeneity
Project description:To evaluate informatics workflows for DIA-based LiP-MS, we generated a high-quality benchmark data set comprising more than 170,000 LiP peptides with defined composition. We then performed comprehensive assessment of major DIA analysis platforms incorporating different spectral libraries, and introduced DIA-LiPQuan, an informatics pipeline tailored to DIA LiP-MS quantification and downstream analysis. Data re-analysis by DIA-LiPQuan with in silico libraries allows sensitive and robust detection of both site-specific structural remodeling of proteins and drug-bound protein targets from the cellular proteome. Collectively, our study provides a valuable benchmark resource and informatics package for LiP-MS data mining, which would facilitate its broader applications in structural proteomics and drug discovery.
Project description:Recent advancements in liquid chromatography-mass spectrometry (LC-MS) have increasingly focused on high-throughput workflows, leveraging rapid chromatographic gradients and minimal sample input to maximize proteome coverage from limited material. This shift is particularly driven by the rise of single-cell proteomics, where sensitivity and reproducibility are critical. Building on our previous benchmark dataset (PXD028735), we now present an expanded study utilizing the latest generation of LC-MS platforms optimized for high-throughput proteomics. This study features shorter LC gradients and lower sample input to address the growing need for rapid and sensitive proteome analysis. Using a standardized hybrid proteome mixture with defined ratios of Human, Yeast, and E. coli, we generated a comprehensive Data-Dependent and Data-Independent Acquisition (DDA/DIA) dataset across multiple state-of-the-art LC-MS platforms. The updated dataset incorporates the latest acquisition methodologies and extends coverage across an even broader range of data formats, including enhanced ion mobility-enabled and scanning quadrupole-based acquisitions. Our results providea detailed assessment of the impact of technological advancements and demonstrate how shortening LC gradients influence proteome coverage, quantitative precision, and data consistency across instruments
Project description:Recent advancements in liquid chromatography-mass spectrometry (LC-MS) have increasingly focused on high-throughput workflows, leveraging rapid chromatographic gradients and minimal sample input to maximize proteome coverage from limited material. This shift is particularly driven by the rise of single-cell proteomics, where sensitivity and reproducibility are critical. Building on our previous benchmark dataset (PXD028735), we now present an expanded study utilizing the latest generation of LC-MS platforms optimized for high-throughput proteomics. This study features shorter LC gradients and lower sample input to address the growing need for rapid and sensitive proteome analysis. Using a standardized hybrid proteome mixture with defined ratios of Human, Yeast, and E. coli, we generated a comprehensive Data-Dependent and Data-Independent Acquisition (DDA/DIA) dataset across multiple state-of-the-art LC-MS platforms. The updated dataset incorporates the latest acquisition methodologies and extends coverage across an even broader range of data formats, including enhanced ion mobility-enabled and scanning quadrupole-based acquisitions. Our results providea detailed assessment of the impact of technological advancements and demonstrate how shortening LC gradients influence proteome coverage, quantitative precision, and data consistency across instruments
Project description:Recent advances in liquid chromatography–mass spectrometry (LC-MS) have accelerated the adoption of high-throughput workflows that deliver deep proteome coverage using minimal sample amounts. This trend is largely driven by single-cell proteomics, where sensitivity and reproducibility are essential. Here, we extend our previous benchmark dataset (PXD028735) that was generated using next-generation LC-MS platforms optimized for rapid proteome analysis. With shorter LC gradients and lower sample amounts, we generated an extensive DDA/DIA dataset on a standardized human-yeast-E. coli hybrid proteome. This new dataset includes data acquired by the Orbitrap Astral, which combines an Orbitrap with a time-of-flight (TOF) mass analyzer, and features new scanning quadrupole-based implementations, extending coverage across different instruments and acquisition strategies. Our comprehensive evaluation highlights how technological advances and reduced LC gradients affect proteome depth, quantitative precision, and cross-instrument consistency. The release of this benchmark dataset via ProteomeXchange (PXD070049), allows for the acceleration of cross-platform algorithm development, enhance data mining strategies, and support the continued standardization of short-gradient, high-throughput LC-MS-based proteomics.