Abstract：
:In-depth, reproducible coverage of complex proteomes is challenging because the complexity of tryptic digests subjected to LC-MS/MS analysis frequently exceeds mass spectrometer analytical capacity, which results in undersampling of data. In this study, we used cancer cell lysates to systematically compare the commonly used GeLC-MS/MS (1-D protein + 1-D peptide separation) method using four repetitive injections (2-D/repetitive) with a 3-D method that included solution isoelectric focusing and involved an equal number of LC-MS/MS runs. The 3-D method detected substantially more unique peptides and proteins, including higher numbers of unique peptides from low-abundance proteins, demonstrating that additional fractionation at the protein level is more effective than repetitive analyses at overcoming LC-MS/MS undersampling. Importantly, more than 90% of the 2-D/repetitive protein identifications were found in the 3-D method data in a direct protein level comparison, and the reproducibility between data sets increased to greater than 96% when factors such as database redundancy and use of rigid scoring thresholds were considered. Hence, high reproducibility of complex proteomes, such as human cancer cell lysates, readily can be achieved when using multidimensional separation methods with good depth of analysis.
journal_name
J Proteome Resjournal_title
Journal of proteome researchauthors
Wang H,Chang-Wong T,Tang HY,Speicher DWdoi
10.1021/pr900927ysubject
Has Abstractpub_date
2010-02-05 00:00:00pages
1032-40issue
2eissn
1535-3893issn
1535-3907journal_volume
9pub_type
杂志文章abstract：:Ozonated autohemotherapy (O3-AHT) is a medical approach during which blood obtained from the patient is ozonated and injected back into the body. Despite an increasing number of evidence that O3-AHT is safe, this type of therapy remains controversial. To extend knowledge about the changes in blood evoked by O3-AHT, LC...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr3008946
更新日期：2012-12-07 00:00:00
abstract：:As spectral library searching has received increasing attention for peptide identification, constructing good decoy spectra from the target spectra is the key to correctly estimating the false discovery rate in searching against the concatenated target-decoy spectral library. Several methods have been proposed to cons...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr301039b
更新日期：2013-05-03 00:00:00
abstract：:Anoxygenic phototrophic bacteria are metabolically versatile and survive under different growth modes using diverse organic compounds, yet their metabolic diversity is largely unexplored. In the present study, we employed stable-isotope-assisted metabolic profiling to unravel the l-phenylalanine catabolism in Rubriviv...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.7b00500
更新日期：2018-01-05 00:00:00
abstract：:A major challenge in the life sciences is the extraction of detailed molecular information from plants and animals that are not among the handful of exhaustively studied "model organisms." As a consequence, certain species with novel phenotypes are often ignored due to the lack of searchable databases, tractable genet...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr050306a
更新日期：2006-04-01 00:00:00
abstract：:POPX2 is a serine/threonine phosphatase belonging to the protein phosphatase 2C (PP2C) family that has been found to be elevated in invasive breast cancer cells. Silencing of POPX2 results in lower cell motility and invasiveness. The molecular mechanism of POPX2-regulated cell motility is not well understood. To ident...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr301113c
更新日期：2013-06-07 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：:Acute stress may trigger systemic biochemical and physiological changes in living organisms, leading to a rapid loss of homeostasis, which can be gradually reinstated by self-regulatory mechanisms and/or drug intervention strategy. However, such a sophisticated metabolic regulatory process has so far been poorly under...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr070051w
更新日期：2007-09-01 00:00:00
abstract：:12-O-Tetradecanoyl-phorbol-13-acetate (TPA) is a plant derivative with multiple function as tumor promoter, differentiation revulsant or leukemia therapy drug. The molecular mechanism of its function is perplexing. Many studies have focused on the mechanism of TPA stimulation in tumor promotion of mouse models or term...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr0497677
更新日期：2005-03-01 00:00:00
abstract：:Rosiglitazone is a thiazolidinedione used to treat insulin resistance in diabetes. Although thiazolidinediones may also exert cardiovascular effects, contrasting results were reported. Favorable effects were shown for pioglitazone, whereas adverse reactions were suspected for rosiglitazone. Therefore, a reassessment o...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr900435z
更新日期：2010-01-01 00:00:00
abstract：:The SEQUEST program was the first and remains one of the most widely used tools for assigning a peptide sequence within a database to a tandem mass spectrum. The cross correlation score is the primary score function implemented within SEQUEST and it is this score that makes the tool particularly sensitive. Unfortunate...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr800420s
更新日期：2008-10-01 00:00:00
abstract：:Huntington's disease (HD) is a neurodegenerative disorder caused by expansion of a CAG repeat within the Huntingtin (HTT) gene, though the clinical presentation of disease and age-of-onset are strongly influenced by ill-defined environmental factors. We recently reported a gene-environment interaction wherein expressi...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr200839d
更新日期：2012-02-03 00:00:00
abstract：:The secreted proteins of bacteria are usually accompanied by virulence factors, which can cause inflammation and damage host cells. Identifying the secretomes arising from the interactions of bacteria and host cells could therefore increase understanding of the mechanisms during initial pathogenesis. The present study...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.6b00584
更新日期：2017-01-06 00:00:00
abstract：:Cold acclimation is the phenomenon in which plants are exposed to low, but nonfreezing, temperatures before exposure to drastic temperatures. To investigate how sunflower plants adjust their metabolism during cold treatment, a comparative proteomic approach, based on spectral counting data, was adopted to identify dif...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr101137q
更新日期：2011-05-06 00:00:00
abstract：:One-hundred twenty-four proteins have been identified in the soluble nuclear protein mixture from MCF-7 human breast cancer cells, of which more than 90% are classically categorized as nuclear proteins. Proteins were also studied from three drug resistant MDF-7 lines, selected previously from the same parent line by e...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr0501158
更新日期：2005-09-01 00:00:00
abstract：:Crucial metabolites that modulate hosts' metabolome to eliminate bacterial pathogens have been documented, but the metabolic mechanisms are largely unknown. The present study explores the metabolic mechanism for l-leucine-induced metabolome to eliminate Streptococcus iniae in tilapia. GC-MS-based metabolomics was used...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.6b00944
更新日期：2017-05-05 00:00:00
abstract：:The Esx/WXG-100 (ESAT-6/Wss) exporters are multiprotein complexes that promote protein translocation across the cytoplasmic membrane in a diverse range of pathogenic and nonpathogenic bacterial species. The Esx-1 (ESAT-6 System-1) system mediates virulence factor translocation in mycobacterial pathogens, including the...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr500484w
更新日期：2014-11-07 00:00:00
abstract：:The past decade has been marked by the emergence of selective affinity media and sensitive mass spectrometry instrumentation that facilitated large-scale phosphoproteome analyses and expanded the repertoire of protein phosphorylation. Despite these remarkable advances, the precise location of the phosphorylation site ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr300229m
更新日期：2012-07-06 00:00:00
abstract：:Protein cleavage coupled with isotope dilution mass spectrometry (PC-IDMS) has the potential to provide the absolute concentration of a specific protein, or multiple proteins, in complex mixtures. However, PC-IDMS differs from standard IDMS since the internal standard is a different molecule than the analyte at the st...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr034124x
更新日期：2004-05-01 00:00:00
abstract：:The increasing occurrence of multidrug resistant tuberculosis exerts a major burden on treatment of this infectious disease. Thioridazine, previously used as a neuroleptic, is active against extensively drug resistant tuberculosis when added to other second- and third-line antibiotics. By quantitatively studying the p...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.5b01037
更新日期：2016-06-03 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：:We report the structural analysis of cap-binding proteins using a chemical probe/ultraviolet photodissociation (UVPD) mass spectrometry strategy for evaluating solvent accessibility of proteins. Our methodology utilized a chromogenic probe (NN) to probe the exposed amine residues of wheat eukaryotic translation initia...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr400869u
更新日期：2013-12-06 00:00:00
abstract：:Seminoma and embryonal carcinoma (EC), two typical types of testicular germ cell tumors (TGCTs), present significant differences in growth behavior, expression characteristics, differentiation potential, clinical features, therapy, and prognosis. The purpose of this study was to compare the distinctive or preference m...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.9b00007
更新日期：2019-04-05 00:00:00
abstract：:Ubiquitin ligases (E3s) serve as key regulators for the ubiquitylation-mediated pathway. The identification of the corresponding relationship between E3 and its substrates is challenging but required for understanding the regulatory network of ubiquitylation. The low abundance of ubiquitinated conjugates and high redu...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.9b00673
更新日期：2020-01-03 00:00:00
abstract：:Flooding has severe negative effects on soybean growth. To explore the flooding-responsive mechanisms in early-stage soybean, a phosphoproteomic approach was used. Two-day-old soybean plants were treated without or with flooding for 3, 6, 12, and 24 h, and root tip proteins were then extracted and analyzed at each tim...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr500621c
更新日期：2014-12-05 00:00:00
abstract：:Major depressive disorder (MDD) is a socially detrimental psychiatric disorder, contributing to increased healthcare expenditures and suicide rates. However, no empirical laboratory-based tests are available to support the diagnosis of MDD. In this study, a NMR-based plasma metabonomic method for the diagnosis of MDD ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr2010082
更新日期：2012-03-02 00:00:00
abstract：:An individually darkened leaf model was used to study protein changes in the Arabidopsis mutant stay-green1 (sgr1) to partially mimic the process of leaf covering senescence that occurs naturally in the shaded rosettes of Arabidopsis plants. Utilizing this controlled and predictable induced senescence model has allowe...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr300691k
更新日期：2012-11-02 00:00:00
abstract：:In this study, we aim to identify the potential biomarkers in hTG pathogenesis in schisandrin B-induced hTG mouse model. To investigate whether these identified biomarkers are only specific to schisandrin B-induced hTG mouse model, we also measured these biomarkers in a high fat diet (HFD)-induced hTG mouse model. We ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr3010327
更新日期：2013-03-01 00:00:00
abstract：:Defects in the gene encoding the persulfide dioxygenase ETHE1 are known to cause the severe inherited metabolic disorder ethylmalonic encephalopathy (EE). In spite of known clinical characteristics, the molecular mechanisms underlying the ETHE1 deficiency are still obscure. Herein, to further analyze the molecular phe...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.6b00100
更新日期：2016-05-06 00:00:00
abstract：:Microglial inflammatory responses affect Parkinson's disease (PD) associated nigrostriatal degeneration. This is triggered, in measure, by misfolded, nitrated alpha-synuclein (N-alpha-syn) contained within Lewy bodies that are released from dying or dead dopaminergic neurons into the extravascular space. N-alpha-syn-s...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr9001614
更新日期：2009-07-01 00:00:00
abstract：:Protein oxidation and nitration have been described during spinal cord injury (SCI) in animal models. Herein, mass spectrometry unambiguously identified GDP-dissociation inhibitor-2 (GDI-2) in SCI with post-translational modifications of 3-aminotyrosine (8 h post-injury) and an acrolein adduct of GDI-2 (72 h post-inju...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr060620k
更新日期：2007-04-01 00:00:00
