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

     

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.

     

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.

     

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.

     

MaxQuant.Live Enables Global Targeting of More Than 25,000 Peptides

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Highlights

• •MaxQuant.Live controls Orbitrap mass analyzers in real-time.
• •Freely available apps enable advanced data acquisition strategies.
• •On-the-fly mass, retention time and intensity recalibration.
• •Global targeting unifies shotgun and targeted proteomics.

     

Common Metabolic Pathways Implicated in Resistance to Chemotherapy Point to a Key Mitochondrial Role in Breast Cancer,

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Highlights

• •OMICS distinguish cancer cells from resistant or cancer stem cells.
• •Bactericidal antibiotics and mitochondria.
• •Linezolid and anticancer therapy.

     

High-throughput Identification of FLT3 Wild-type and Mutant Kinase Substrate Preferences and Application to Design of Sensitive In Vitro Kinase Assay Substrates

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Highlights

• •Developed a data processing pipeline to format phosphopeptide identifications.
• •Identified the preferred substrate motif for FLT3 and mutant kinases.
• •Designed and validated a panel of pan-FTL3 artificial substrates.
• •Monitored FLT3 and mutant kinase activity through FAStide phosphorylation.

     

Deep Protein Methylation Profiling by Combined Chemical and Immunoaffinity Approaches Reveals Novel PRMT1 Targets

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Highlights

• •Enrichment of methyl peptides using two orthogonal techniques.
• •Knockdown of PRMT1 leads to substantial changes in protein arginine “methylome”.
• •Discrimination of ADMA and SDMA using characteristic neutral losses.
• •Identification of PRMT1 targets and substrate scavenged by other PRMTs in the absence of PRMT1 activity.

     

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.

     

Comprehensive Analysis of Individual Variation in the Urinary Proteome Revealed Significant Gender Differences

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Highlights

• •Comprehensive analysis of inter-individual variation of normal urinary proteome.
• •Significant gender differences were observed.
• •Proteins increased in female urine are enriched in immunological pathways.
• •Estimated reference intervals of proteins as the baseline for biomarker discovery.

     

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.

     

Complexome Profiling Reveals Association of PPR Proteins with Ribosomes in the Mitochondria of Plants

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Highlights

• •Plant mitoribosomes contain several pentatricopeptide repeat proteins.
• •The small mitoribosomal subunit is of an exceptionally large size.
• •Protein units not directly related to translation may be attached to plant mitoribosomes to confer additional functions to these molecular machines.

     

HLA-DO Modulates the Diversity of the MHC-II Self-peptidome

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Highlights

• •MHC-II-bound peptide repertoires from DO-sufficient and DO-deficient cells.
• •Fewer unique peptides and core epitopes were presented in the absence of DO.
• •Immunopeptidome differences appeared to result from reduced DM editing.
• •DO-dependent self-epitopes elicited CD4 T cell responses in mice.

     

Exploring Regulation of Protein O-Glycosylation in Isogenic Human HEK293 Cells by Differential O-Glycoproteomics

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Highlights

• •A panel of HEK293 isogenic cell lines with knockout of GALNT genes.
• •Identification of nonredundant O-glycosylation sites regulated by specific GalNAc-T isoforms.
• •GalNAc-T7 and T10 contribute to follow-up activity in regions of high density O-glycosylation.
• •GalNAc-T11 specifically controls O-glycosylation of specific linker regions in the low-density lipoprotein receptor related proteins.

     

Proteomics of Asrij Perturbation in Drosophila Lymph Glands for Identification of New Regulators of Hematopoiesis

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Highlights

• •First report on the quantitative proteomic profiling of Drosophila lymph glands.
• •Comparative proteomic analysis under conditions of perturbed blood cell homeostasis.
• •Resource for identifying new regulators of insect and vertebrate hematopoiesis.

     

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.

     

N-terminal Acetylation Levels Are Maintained During Acetyl-CoA Deficiency in Saccharomyces cerevisiae

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Highlights

• •First global study on metabolic regulation of Nt-acetylation.
• •Yeast cells maintain global Nt-acetylation levels during prolonged starvation.
• •Nt-acetylation can in some cases be either up- or downregulated by starvation.
• •Naa10/NatA affects the steady-state protein levels of Rsa3 and Rpl7a.

     

Metabolic Cross-talk Between Human Bronchial Epithelial Cells and Internalized Staphylococcus aureus as a Driver for Infection*

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Highlights

• •Interplay of epithelial cells and internalized S. aureus was dissected over 96 h.
• •Surviving host cells contain nonreplicating bacteria that persists in the cytoplasm.
• •Competition over resources triggers temporal metabolic changes.
• •Metabolic adaptation of host and bacteria determines the outcome of infection.