Abstract：
:Clostridium difficile in recent years has undergone rapid evolution and has emerged as a serious human pathogen. Proteomic approaches can improve the understanding of the diversity of this important pathogen, especially in comparing the adaptive ability of different C. difficile strains. In this study, TMT labeling and nanoLC-MS/MS driven proteomics were used to investigate the responses of four C. difficile strains to nutrient shift and osmotic shock. We detected 126 and 67 differentially expressed proteins in at least one strain under nutrition shift and osmotic shock, respectively. During nutrient shift, several components of the phosphotransferase system (PTS) were found to be differentially expressed, which indicated that the carbon catabolite repression (CCR) was relieved to allow the expression of enzymes and transporters responsible for the utilization of alternate carbon sources. Some classical osmotic shock associated proteins, such as GroEL, RecA, CspG, and CspF, and other stress proteins such as PurG and SerA were detected during osmotic shock. Furthermore, the recently emerged strains were found to contain a more robust gene network in response to both stress conditions. This work represents the first comparative proteomic analysis of historic and recently emerged hypervirulent C. difficile strains, complementing the previously published proteomics studies utilizing only one reference strain.
journal_name
J Proteome Resjournal_title
Journal of proteome researchauthors
Chen JW,Scaria J,Mao C,Sobral B,Zhang S,Lawley T,Chang YFdoi
10.1021/pr3007528subject
Has Abstractpub_date
2013-03-01 00:00:00pages
1151-61issue
3eissn
1535-3893issn
1535-3907journal_volume
12pub_type
杂志文章abstract：:A comprehensive glycan map was constructed for the top eight abundant glycoproteins in plasma using both specific and nonspecific enzyme digestions followed by nano liquid chromatography (LC)-chip/quadrupole time-of-flight mass spectrometry (MS) analysis. Glycopeptides were identified using an in-house software tool, ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.5b00756
更新日期：2015-12-04 00:00:00
abstract：:Mutagenesis through fast neutron (FN) radiation of soybean resulted in a mutant with a 15% increase in seed protein content. A comparative genomic hybridization analysis confirmed that the mutant is lacking 24 genes located at chromosomes 5 and 10. A tandem mass tag-based proteomic profiling of the wild type and the F...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.0c00160
更新日期：2020-10-02 00:00:00
abstract：:We have investigated the molecular mechanisms regulating the necrosis and apoptosis that occur on treatment of mouse mammary tumor FM3A cells with 5-fluoro-2'-deoxyuridine (FUdR), a potent anticancer agent, using the original clone F28-7 and its variant F28-7-A cells. Previously, we reported an interesting observation...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr9010537
更新日期：2010-05-07 00:00:00
abstract：:Advances in proteomics are continually driven by the introduction of new mass spectrometric instrumentation with improved performances. The recently introduced quadrupole Orbitrap (Q Exactive) tandem mass spectrometer allows fast acquisition of high-resolution higher-energy collisional dissociation (HCD) tandem mass s...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr3000249
更新日期：2012-06-01 00:00:00
abstract：:Sulfur trafficking systems are multiprotein systems that synthesize sulfur-containing cofactors such as iron-sulfur clusters. The sulfur is derived enzymatically from cysteine and transferred between nucleophilic cysteine residues within proteins until incorporation into the relevant cofactor. As these systems are poo...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr100920r
更新日期：2010-12-03 00:00:00
abstract：:A fast and robust method for lipid profiling utilizing liquid chromatography coupled with mass spectrometry has been demonstrated and validated for the analysis of human plasma. This method allowed quantification and identification of lipids in human plasma using parallel alternating low energy and high energy collisi...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr901094j
更新日期：2010-05-07 00:00:00
abstract：:Near-isogenic sunflower lines containing 25% (inbred RHA280) and 48% (RHA801) oil by seed dry mass were comparatively analyzed in biological triplicate at 18 days after flowering using two-dimensional (both pI 3-10 and 4-7) Difference Gel Electrophoresis. Additionally, two inbred lines varying in oleic acid content, H...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr070149a
更新日期：2007-08-01 00:00:00
abstract：:Irritable Bowel Syndrome (IBS) is a common multifactorial intestinal disorder for which the aetiology remains largely undefined. Here, we have used a Trichinella spiralis (T. spiralis)-induced model of post-infective IBS, and the effects of probiotic bacteria on gut dysfunction have been investigated using a metabonom...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr060157b
更新日期：2006-09-01 00:00:00
abstract：:Src family kinases (SFKs) are the earliest known family of tyrosine kinases and are widely thought to play essential roles in cellular signal transduction. Although numerous functional analyses have been performed, no study has analyzed the specificity of all SFKs on an equal platform. To gain a better understanding o...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr100773t
更新日期：2010-11-05 00:00:00
abstract：:The search for novel enzymes is an important but difficult task in functional genomics. Here, we present a systematic method based on in vitro assays in combination with metabolite profiling to discover novel enzymatic activities. A complex mixture of metabolites is incubated with purified candidate proteins and the r...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr0600576
更新日期：2006-08-01 00:00:00
abstract：:This nonrandomized phase I/II trial assessed the efficacy/tolerability of imatinib plus panitumumab in patients affected by metastatic colorectal cancer (mCRC) after stratification to treatment by selection of activated imatinib drug targets using reverse-phase protein array (RPPA). mCRC patients presenting with a bio...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr401267m
更新日期：2014-06-06 00:00:00
abstract：:Cardiovascular disease is the leading cause of diabetic morbidity with more than 10% of type 1 diabetes mellitus (T1DM) patients dying before they are 40 years old. This study utilized Akita mice, a murine model with T1DM progression analogous to that of humans. Diabetic cardiomyopathy in Akita mice presents as cardia...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr4004739
更新日期：2013-09-06 00:00:00
abstract：:Affinity purification coupled to 1-D gel-free liquid chromatography mass spectrometry (LC-MS) is a well-established and widespread approach for the analyses of noncovalently interacting protein complexes. In this study, two proteins conjugated to a streptavidin-binding peptide and hemagglutinin double tag were express...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr4009892
更新日期：2014-02-07 00:00:00
abstract：:The physical, endocrine, and metabolic responses of livestock to road transport have been evaluated by conventional hematological and biochemistry parameters for more than 20 years. However, these measures are relatively insensitive to subtle metabolic adaptations. We applied NMR-based metabonomics to assess system-wi...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr100862t
更新日期：2011-03-04 00:00:00
abstract：:We report the comparative proteomic characterization of the venoms of adult and newborn specimens of the lancehead pitviper Bothrops asper from two geographically isolated populations from the Caribbean and the Pacific versants of Costa Rica. The crude venoms were fractionated by reverse-phase HPLC, followed by analys...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr800332p
更新日期：2008-08-01 00:00:00
abstract：:Lysine methylation plays important roles in structural and functional regulation of chromatin. Although trypsin is the most widely used protease in mass spectrometry-based proteomic analysis for lysine methylation substrates, the proteolytic activity of trypsin on dimethylated lysine residues remains an arguable issue...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.7b00373
更新日期：2017-09-01 00:00:00
abstract：:The application of metabolic phenotyping to epidemiological studies involving thousands of biofluid samples presents a challenge for the selection of analytical platforms that meet the requirements of high-throughput precision analysis and cost-effectiveness. Here direct infusion-nanoelectrospray (DI-nESI) was compare...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.8b00413
更新日期：2018-10-05 00:00:00
abstract：:Transient cerebral ischemia dramatically activates small ubiquitin-like modifier (SUMO2/3) conjugation. In cells exposed to 6 h of transient oxygen/glucose deprivation (OGD), a model of ischemia, SUMOylation increases profoundly between 0 and 30 min following re-oxygenation. To elucidate the effect of transient OGD on...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr200834f
更新日期：2012-02-03 00:00:00
abstract：:Cancer stem cells are responsible for tumor formation through self-renewal and differentiation into multiple cell types and thus represent a new therapeutic target for tumors. Glycoproteins play a critical role in determining the fates of stem cells such as self-renewal, proliferation, and differentiation. Here we app...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr101158p
更新日期：2011-01-07 00:00:00
abstract：:We propose a method for finding features in liquid chromatography mass spectrometry data that is based on the isotopic pattern of peaks. Our interactive approach to feature finding is carried out across many samples simultaneously and aligns features concurrently. Our scale-independent approach prioritises potential f...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr060226m
更新日期：2006-11-01 00:00:00
abstract：:Porphyromonas gingivalis is a keystone periodontal pathogen that has been associated with autoimmune disorders. The cell surface proteases Lys-gingipain (Kgp) and Arg-gingipains (RgpA and RgpB) are major virulence factors, and their proteolytic activity is enhanced by small peptides such as glycylglycine (GlyGly). The...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.8b00286
更新日期：2018-08-03 00:00:00
abstract：:For the 2018 YPIC Challenge, contestants were invited to try to decipher two unknown English questions encoded by a synthetic protein expressed in Escherichia coli. In addition to deciphering the sentence, contestants were asked to determine the three-dimensional structure and detect any post-translation modifications...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.9b00384
更新日期：2019-11-01 00:00:00
abstract：:A biphasic monolithic capillary column with 10 cm segment of strong-cation exchange monolith and 65 cm segment of reversed-phase monolith was prepared within a single 100 microm i.d. capillary. Separation performance of this column was evaluated by a five-cycle online multidimensional separation of 10 microg tryptic d...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr700562b
更新日期：2008-01-01 00:00:00
abstract：:Middle-aged and old left ventricles (LVs) are structurally and functionally very similar. Compared to a young LV, both show increased wall thickness and increased cavity size, with preserved cardiac function. However, when a stressor such as myocardial infarction occurs, striking differences are revealed between young...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr700685e
更新日期：2008-02-01 00:00:00
abstract：:Yellow fever virus (YFV) replication is highly dependent on host cell factors. YFV NS4B is reported to be involved in viral replication and immune evasion. Here interactions between NS4B and human proteins were determined using a GST pull-down assay and analyzed using 1-DE and LC-MS/MS. We present a total of 207 prote...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.6b00933
更新日期：2017-04-07 00:00:00
abstract：:Russell and colleagues deserve credit for being the first to use a QconCAT standard to simultaneously quantify both the wild-type and mutant peptides of a protein (i.e., CYP2B6) ( J. Proteome Res. 2013, 12 (12), 5934-5942. DOI: 10.1021/pr400279u). However, the rationale of their study was entirely different from ours ...
journal_title：Journal of proteome research
pub_type： 评论,杂志文章
doi：10.1021/acs.jproteome.8b00940
更新日期：2019-03-01 00:00:00
abstract：:Prostate cancer (PCa) is the second leading cause of cancer-related mortality in men. The prevalent diagnosis method is based on the serum prostate-specific antigen (PSA) screening test, which suffers from low specificity, overdiagnosis, and overtreatment. In this work, untargeted metabolomic profiling of age-matched ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr500409q
更新日期：2014-07-03 00:00:00
abstract：:Bacterial small RNAs (sRNAs) and two-component systems (TCSs) were two vital regulatory mechanisms employed by microorganisms to respond to environmental changes and stresses. As a promising "autotrophic cell factory", photosynthetic cyanobacteria have attracted a lot of attention these years. Although most studies fo...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.7b00243
更新日期：2017-08-04 00:00:00
abstract：:Blood is an ideal window for viewing our health and disease status. Because blood circulates throughout the entire body and carries secreted, shed, and excreted signature proteins from every organ and tissue type, it is thus possible to use the blood proteome to achieve a comprehensive assessment of multiple-organ phy...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr301178a
更新日期：2013-05-03 00:00:00
abstract：:Ribosomal proteins of the model gram-positive bacterium B. subtilis 168 were extensively characterized in a proteomic study. Mass spectra of the 52 proteins expected to be constitutive components of the 70S ribosome were recorded. Peptide MS/MS analysis with an average sequence coverage of 85% supported the identifica...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr801114k
更新日期：2009-09-01 00:00:00
