Quantitative Early Auxin Root Proteomics Identifies GAUT10, a Galacturonosyltransferase,as a Novel Regulator of Root Meristem Maintenance

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Highlights

• •Auxin responsive proteins in Arabidopsis roots were identified from 3,514 detected proteins.
• •All six auxin receptors are stable in response to hormone via novel MRM assays.
• •The >100 differentially expressed proteins exhibit dynamic and transient responses to auxin.
• •Phenotypic screening of the top responsive proteins uncovered several novel root mutants.

     

A Combined N-terminomics and Shotgun Proteomics Approach to Investigate the Responses of Human Cells to Rapamycin and Zinc at the Mitochondrial Level

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Highlights

• •Rapamycin and zinc induce moderate but significant mitochondrial proteome changes.
• •The mitochondrial proteins processing system is robust under subtoxic conditions.
• •Rapamycin and zinc perturb the mitochondrial proteins processing system.
• •Rapamycin and zinc perturb the mitochondrial proteins homeostasis.

     

Development of a Gill Assay Library for Ecological Proteomics of Threespine Sticklebacks (Gasterosteus aculeatus)

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Highlights

• •Construction of threespine stickleback gill assay library using DDA proteomics
• •Population-specific gill proteome signatures of four ecotypes identified by DIA
• •HSP47 and extracellular matrix proteins highly elevated in warm-adapted sticklebacks
• •Inflammasome and proteolytic proteins highly elevated in freshwater sticklebacks

     

Comparative Secretome Analyses of Human and Zoonotic Staphylococcus aureus Isolates CC8, CC22, and CC398

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Highlights

• •Proteogenomics and secretome comparison of human and zoonotic Staphylococcus aureus lineages.
• •869 secreted proteins identified in eight S. aureus isolates of CC8, CC22 and CC398.
• •CC398 lower secretion of surface proteins and higher secretion of hemolysins and exoenzymes.
• •Regulatory differences in the secretomes could be linked to lower SigB activity in CC398.

     

Comprehensive Analysis of the Lysine Succinylome and Protein Co-modifications in Developing Rice Seeds

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Highlights

• •Nonenzymatically Ksu proteins shown different pattern from native cell Ksu proteins.
• •Motif preference of Ksu proteins was associated with different biological processes.
• •Up to 67 developing rice seeds proteins contain PTMs of Kac, Ksu, Kcr, Kmal, and Khib.
• •Some lysine residues of the key pathway enzymes are modified by succinylation.

     

The Proteome of Pig Spermatozoa Is Remodeled During Ejaculation

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Highlights

• •Proteome of mature boar spermatozoa from cauda epididymal and ejaculated sources were analyzed by iTRAQ-based LC-MS/MS.
• •1,723 sperm proteins identified (974 of Sus scrofa taxonomy).
• •1,602 sperm proteins quantified (960 of Sus scrofa taxonomy).
• •32 Sus scrofa sperm proteins were differentially expressed among sperm sources.
• •The proteome of boar spermatozoa is remodelled during ejaculation.

     

Identification of Salivary Biomarkers for Oral Cancer Detection with Untargeted and Targeted Quantitative Proteomics Approaches

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Highlights

• •iTRAQ-based analysis of saliva samples from oral cancer patients.
• •Proteome profiling of saliva samples from patients with oral premalignant lesions.
• •Verification of salivary biomarker candidates with MRM-MS and immunoassays.
• •Identification of salivary proteins as potential biomarkers of oral cancer.

     

Analysis of Brain and Cerebrospinal Fluid from Mouse Models of the Three Major Forms of Neuronal Ceroid Lipofuscinosis Reveals Changes in the Lysosomal Proteome

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Highlights

• •Proteomic analysis of brain and cerebrospinal fluid from mouse NCL models.
• •Disease-associated changes in lysosomal proteins and markers of neuroinflammation.
• •Biomarker candidates identified for further evaluation.

     

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.

     

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

     

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.

     

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.

     

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

     

Spatiotemporal Changes of the Phagosomal Proteome in Dendritic Cells in Response to LPS Stimulation*

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Highlights

• •Characterization of the phagosomal proteome comparing resting and LPS-treated BMDCs.
• •Label-free quantification determined 2843 phagosomal proteins.
• •Reduced recruitment of hydrolases and V-ATPase to phagosomes of LPS-treated cells.
• •Increased recruitment of antigen cross-presentation molecules to these phagosomes.

     

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.

     

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.