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ProteomicsStradard protein and yeast top-down data
We developed a novel dissociation strategy in the data acquisition process, the Mesh strategy to dissociate multiple charge states of one proteoform with stepped HCD (high collision energy dissociation). We proved that the ‘Mesh’ strategy could generate fragments with improved sequence coverage and...
ORGANISM(S): Saccharomyces cerevisiae (Baker's yeast) 
2022-06-09 | PXD022941 | Pride
Stepped hcd Instrument control Real-time Mesh Top-down 
ProteomicsQuantifying Positional Isomers (QPI) by top-down mass spectrometry
Proteomics has exposed a plethora of post-translational modifications, but demonstrating functional relevance requires new approaches. Top-down proteomics can characterize co-occurring modifications in terms of localization, abundance and hierarchy. Here, we present a top-down MS analysis workflow f...
ORGANISM(S): Homo sapiens (Human) 
2021-03-18 | PXD012084 | Pride
Top-down mass spectrometry Positional isomers Quantitation Phosphorylation 
ProteomicsFollicular cells Top-down proteomic
In mammals, the capacity of the female germ cell, the oocyte, to develop into embryo is acquired throughout meiotic maturation. Immature oocyte cannot be fertilized while mature oocyte is apt to accept spermatozoa and to develop an embryo. In a follicle, the oocyte is surrounded by mural granulosa c...
ORGANISM(S): Bos taurus (Bovine) 
2017-04-10 | PXD004892 | Pride
Oocytes Μlc-ms/ms Cumulus cells Top-down proteomic Granulosa cells 
ProteomicsPredicting electrophoretic mobility of proteoforms for large-scale top-down proteomics
Large-scale top-down proteomics characterizes proteoforms in cells globally with high confidence and high throughput using reversed-phase liquid chromatography (RPLC)-tandem mass spectrometry (MS/MS) or capillary zone electrophoresis (CZE)-MS/MS. The false discovery rate (FDR) from the target-decoy ...
ORGANISM(S): Escherichia coli 
2020-02-17 | PXD017265 | Pride
Top-down proteomics Electrophoretic mobility Cze-ms Proteoform 
ProteomicsTop Down Histone H4 - SUM159 Butyrate
Proteins physiologically exist and function as ‘proteoforms’ that arise from one gene but acquire additional function by further variation such as post-translational modification (PTM). When multiple PTMs coexist on single protein molecules top down proteomics becomes the only feasible method; howev...
ORGANISM(S): Homo sapiens (Human) 
2019-11-22 | PXD013766 | Pride
Top-down Histone h4 
ProteomicsCharacterization of intact proteomic profile of senescent-associated secretory phenotype (SASP) by top-down mass spectrometry.
Senescent cells are increasingly recognized as major contributors to age-related diseases, primarily through the secretion of bioactive molecules known as the senescence-associated secretory phenotype (SASP). The SASP plays a crucial role in promoting various age-related conditions, including neurod...
ORGANISM(S): Homo sapiens (Human) 
2025-12-29 | PXD061829 | Pride
Senescence  aging  top-down proteomics  proteoforms  biomarkers  sasp  senescence-associated secretory phenotype 
ProteomicsRevealing Corynebacterium glutamicum proteoforms through top-down proteomics
Corynebacterium glutamicum is a bacterium widely employed in the industrial production of amino acids as well as a broad range of other biotechnological products. The present study describes the characterization of C. glutamicum proteoforms, and their post-translational modifications (PTMs) employin...
ORGANISM(S): Corynebacterium glutamicum ATCC 13032 
2022-12-10 | PXD038038 | Pride
Top-down proteomics Corynebacterium glutamicum Proteoforms 
ProteomicsTop-Down proteomics of unfractionated Bovine heart mitochondria
Top-Down proteomics pilot experiment of unfractionated Bovine Heart Mitochondria (BHM) using ultra high resolution Q-ToF tandem mass spectrometry (maXis 4G ETD, Bruker Daltonics).
ORGANISM(S): Bos taurus (Bovine) 
2018-04-05 | PXD005350 | Pride
Bovine Mitochondrion Protein Intact Top-down proteomics 
ProteomicsTop-down detection of oxidative protein footprinting by Collision-Induced Dissociation, Electron-Transfer Dissociation and Electron-Capture Dissociation
Fast photochemical oxidation of proteins (FPOP) footprinting is a structural mass spectrometry method that maps proteins by fast and irreversible chemical reactions. The position of oxidative modification reflects solvent accessibility and site reactivity and thus provides information about protein ...
ORGANISM(S): Bos taurus (Bovine) Equus caballus (Horse) 
2023-07-20 | PXD031926 | Pride
Electron-transfer dissociation Fast photochemical oxidation of proteins Top-down Collision-induced dissociation Mass spectrometry. Electron-capture dissociation 
ProteomicsQuantitative Top-Down Proteomics Analysis of Age-related Changes in Murine Hearts
Label-free quantitative top-down proteomics was performed on mitochondrial lysate isolated from the hearts of 3 young (4-month-old) and 3 old (24-25-month-old) mice.
ORGANISM(S): Mus musculus (Mouse) 
2024-10-17 | PXD051505 | Pride
Top-down Quantitative Aging 
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