Chromobodies to Quantify Changes of Endogenous Protein Concentration in Living Cells

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Highlights

• •Chromobodies are stabilized by antigen binding in live cells.
• •Monitoring changes of endogenous protein levels in living cells with chromobodies.
• •Broadly applicable system to generate turnover-accelerated chromobodies.
• •Quantification of time- and dose-dependent compound effects.

     

Global Proteome and Ubiquitinome Changes in the Soluble and Insoluble Fractions of Q175 Huntington Mice Brains

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Highlights

• •Quantitative changes in global proteome and ubiquitinome in Huntington's disease.
• •Differential ubiquitination of wild-type and mutant Htt in mice brain.
• •Enriched pathways include vesicle transport and mRNA processing.
• •Correlation between protein and diGly site fold changes.

     

Global Interactomics Uncovers Extensive Organellar Targeting by Zika Virus

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Highlights

• •BioID and IP-MS were conducted to generate a global ZIKV-host protein interactome
• •Interactome consists of >3000 high confidence ZIKV-host protein interactions
• •Data mining indicates that ZIKV proteins interact with multiple host cell organelles
• •An important role for peroxisomes in ZIKV infection is uncovered

     

Sensitive Determination of Proteolytic Proteoforms in Limited Microscale Proteome Samples

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Highlights

• •Single-pot workflow for manual or automated enrichment of N-terminal peptides.
• •Sensitive enrichment of protein N termini from 10,000 cells or 2 μg crude proteome.
• •Data independent acquisition improves precision of peptide level quantification.
• •First degradomic analyses of sorted immune cells, single seedlings, and mitochondria from patient cells.

     

DIAlignR Provides Precise Retention Time Alignment Across Distant Runs in DIA and Targeted Proteomics

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Highlights

• •Retention time shift can lead to inversion of elution order of peptides.
• •Global alignment methods are suboptimal for alignment of distant runs.
• •DIAlignR employs hybrid (global + local) RT alignment approach.
• •DIAlignR can align swapped peaks accurately across distant runs.

     

BioID Performed on Golgi Enriched Fractions Identify C10orf76 as a GBF1 Binding Protein Essential for Golgi Maintenance and Secretion

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Highlights

• •BioID with Golgi fractions identified C10orf76 as proximal to GBF1.
• •Tagged C10orf76 overlaps with Golgi markers.
• •C10orf76 binds GBF1 and exchanges rapidly between free and bound forms.
• •C10orf76 is essential for maintenance of the Golgi and for secretion.

     

Integrated Succinylome and Metabolome Profiling Reveals Crucial Role of S-Ribosylhomocysteine Lyase in Quorum Sensing and Metabolism of Aeromonas hydrophila,

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Highlights

• •A global lysine succinylome was investigated in A. hydrophila.
• •The lysine succinylation modifications play crucial role on various metabolic pathways.
• •Reversible succinylation on Lys23 and Lys30 regulates the activity of S-ribosylhomocysteine lyase LuxS.
• •Lysine succinylation modifications of LuxS affect quorum sensing and metabolism.

     

Quantitative Proteomics of the 2016 WHO Neisseria gonorrhoeae Reference Strains Surveys Vaccine Candidates and Antimicrobial Resistance Determinants

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Highlights

• •Quantitative proteomes of the 2016 WHO Neisseria gonorrhoeae reference strains.
• •Novel gonorrhea vaccine candidates and potential global proteomic AMR markers.
• •First large-scale proteomic profiling of gonorrhea vaccine candidates and AMR.
• •A reference proteomics databank for gonococcal vaccine and AMR research endeavors.

     

DECA,A Comprehensive,Automatic Post-processing Program for HDX-MS Data*

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Highlights

• •Open source software for comprehensive HDX-MS data analysis.
• •Automatic back-exchange correction options.
• •Rigorous statistical analysis of the significance of uptake differences.
• •High quality visualization tools.

     

Metabolic,Anti-apoptotic and Immune Evasion Strategies of Primary Human Myeloma Cells Indicate Adaptations to Hypoxia*

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Highlights

• •In-depth proteome profiling of primary human myeloma cells
• •Characteristics of myeloma cells are related to hypoxic bone marrow conditions
• •Myeloma cells show specific immune evasion strategies
• •Metabolic adaptations involve tumor and stroma cells

     

Mapping Spatiotemporal Microproteomics Landscape in Experimental Model of Traumatic Brain Injury Unveils a link to Parkinson's Disease,

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Highlights

• •Spatiotemporal microproteomics analysis of TBI.
• •Injury site microproteomics reveal distinct phases in 10-day frame post TBI.
• •Uninjured proteomic profile is restored in TBI at 10 days post injury.
• •Substantia nigra protein post 3 days suggest link to Parkinson's disease.

     

Whole Proteome Profiling of N-Myristoyltransferase Activity and Inhibition Using Sortase A

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Highlights

• •Application of Sortase A to label protein N-termini across the whole proteome.
• •Novel gel, proteomic and ELISA-based methods to determine N-myristoylation of proteins in cells, without metabolic labelling.
• •Side by side mass spectrometric quantification of changes in protein N-myristoylation by two complementary methods.
• •Improved Biotin-Neutravidin affinity enrichment protocol.

     

Unraveling Hidden Components of the Chloroplast Envelope Proteome: Opportunities and Limits of Better MS Sensitivity

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Highlights

• •Identification of previously undetected chloroplast envelope proteins.
• •Up to date manual annotation of genuine (or shared) envelope components.
• •New hypotheses for localizations, functions, interactions among cell compartments.
• •A new resource of significant value to the broader plant science community.

     

Integration of Two In-depth Quantitative Proteomics Approaches Determines the Kallikrein-related Peptidase 7 (KLK7) Degradome in Ovarian Cancer Cell Secretome

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Highlights

• •Kallikrein-related peptidase 7 is over expressed in ovarian cancer.
• •Quantitative PROTOMAP and TAILS approaches identified putative substrates of KLK7.
• •Pro-MMP10 is activated by KLK7.
• •KLK7 cleaves thrombospondin 1 and IGFBP6 in vitro.

     

Endoglycosidase S Enables a Highly Simplified Clinical Chemistry Procedure for Direct Assessment of Serum IgG Undergalactosylation in Chronic Inflammatory Disease

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Highlights

• •Selective release of IgG Fc glycans in crude serum by endoglycosidase S.
• •CE-LIF-based measurements of IgG undergalactosylation levels (UGS).
• •UGS as a biomarker: Stratification of non-alcoholic steatohepatitis patients and controls.

     

Macrophage Phosphoproteome Analysis Reveals MINCLE-dependent and -independent Mycobacterial Cord Factor Signaling

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Highlights

• •quantitative phosphoproteome analysis of TDM-activated macrophages.
• •distinct Mincle-dependent and independent phosphorylation and gene regulations.
• •Mincle-dependent activation of PI3K/AKT signaling by TDM.
• •Mincle-independent macrophage response is linked to cell cycle regulation.

     

Proteomic Analysis of Vocal Fold Fibroblasts Exposed to Cigarette Smoke Extract: Exploring the Pathophysiology of Reinke's Edema,

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Highlights

• •First global study on laryngeal cells cultured with cigarette smoke enriched medium.
• •Vocal fold fibroblasts increased production of ECM component hyaluronan.
• •Expression of several fibrillar collagens was reduced.

     

A New Tool to Reveal Bacterial Signaling Mechanisms in Antibiotic Treatment and Resistance

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Highlights

• •Quantitative (phospho)proteome analysis of antibiotic treatment in E. coli.
• •Largest bacterial phosphorylation catalogue.
• •Specific phosphorylation motifs changes during resistance development.
• •Phosphorylation mediated signaling could be a potential target for drug design.