Abstract：
:The processing of peptide tandem mass spectrometry data involves matching observed spectra against a sequence database. The ranking and calibration of these peptide-spectrum matches can be improved substantially using a machine learning postprocessor. Here, we describe our efforts to speed up one widely used postprocessor, Percolator. The improved software is dramatically faster than the previous version of Percolator, even when using relatively few processors. We tested the new version of Percolator on a data set containing over 215 million spectra and recorded an overall reduction to 23% of the running time as compared to the unoptimized code. We also show that the memory footprint required by these speedups is modest relative to that of the original version of Percolator.
journal_name
J Proteome Resjournal_title
Journal of proteome researchauthors
Halloran JT,Zhang H,Kara K,Renggli C,The M,Zhang C,Rocke DM,Käll L,Noble WSdoi
10.1021/acs.jproteome.9b00288subject
Has Abstractpub_date
2019-09-06 00:00:00pages
3353-3359issue
9eissn
1535-3893issn
1535-3907journal_volume
18pub_type
杂志文章abstract：:Thermobifida fusca, a thermophilic bacterium belonging to Actinobacteria, is a major degrader of plant cell walls. The protein profiles of the secretome produced by T. fusca grown in cellulose, lignin, and mixture of cellulose and lignin containing culture media, promoting production of respective substrate hydrolyzin...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr901174z
更新日期：2010-06-04 00:00:00
abstract：:Ureteral obstruction will lead clinically to hydronephrosis, which may further develop into partial or complete loss of kidney function and even cause permanent histological damage. However, there is little knowledge of metabolic responses during the obstructed process and its recoverability. In this study, a complete...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.8b00304
更新日期：2018-09-07 00:00:00
abstract：:In this report, we describe an integrated fluidic platform composed of tandem affinity columns for the depletion of high-abundance proteins from human serum and on-line fractionation/concentration of medium- and low-abundance proteins by tandem immobilized metal-ion affinity chromatography (IMAC) columns and reversed ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr900399q
更新日期：2009-10-01 00:00:00
abstract：:The energy-dissipating alternative oxidase (AOX) from Hansenula anomala was expressed in Saccharomyces cerevisiae. The recombinant AOX was functional. A comparative analysis by two-dimensional differential in-gel electrophoresis (2D-DIGE) of mitochondrial protein patterns found in wild-type and recombinant AOX strains...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr050346e
更新日期：2006-02-01 00:00:00
abstract：:Oxidation generates multiple diverse post-translational modifications resulting in changes in protein structure and function associated with a wide range of diseases. Of these modifications, carbonylations have often been used as hallmarks of oxidative damage. However, accumulating evidence supports the hypothesis tha...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.7b00330
更新日期：2017-11-03 00:00:00
abstract：:The low selectivity of Kv1 peptide inhibitors for specific isoforms makes them poor candidates for the development of theraputics. Using combined approaches, we showed that the Kv1 turret is the critical determinant for ADWX-1 peptide inhibitor selectivity of Kv1.3 over Kv1.1. Mutation of Kv1.1 turret residues to matc...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr800494a
更新日期：2008-11-01 00:00:00
abstract：:Protein or peptide sample losses could accompany all steps of the proteomic analysis workflow. We focused on suppression of sample adsorptive losses during sample storage in autosampler vials. We examined suppression capabilities of six different sample injection solutions and seven types of autosampler vial surfaces ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr400183v
更新日期：2013-06-07 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：:There are new challenges for hazard and risk assessment in the chemical industry with regard to REACH legislation in Europe and related activities in the U.S. and Japan, which require the development of novel in vitro models for the molecular characterization of drug- or chemical-related effects replacing conventional...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr100514e
更新日期：2010-11-05 00:00:00
abstract：:A selective method for the enrichment of O-GlcNAcylated peptides using a novel CLICK chemistry reagent is described. Peptides modified by O-GlcNAc were enzymatically labeled with N-azidoacetylgalactosamine. The azide was then reacted with a phospho-alkyne using CLICK chemistry and O-GlcNAcGalNAzPO(4)-containing peptid...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr100565j
更新日期：2011-04-01 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：:Natural disasters such as drought, extreme temperatures, and flooding can severely impact crop production. Understanding the metabolic response of crops threatened with these disasters provides insights into biological response mechanisms that can influence survival. In this study, a comparative analysis of GC-MS and ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr300953k
更新日期：2013-02-01 00:00:00
abstract：:Metabolic profiling of biofluids by nuclear magnetic resonance (NMR) spectroscopy serves as an important tool in disease characterization, and its accuracy largely depends on the quality of samples. We aimed to explore possible effects of repeated freeze-thaw cycles (FTCs) on concentrations of lipoprotein parameters i...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.9b00343
更新日期：2019-10-04 00:00:00
abstract：:The two key steps for analyzing proteomic data generated by high-resolution MS are database searching and postprocessing. While the two steps are interrelated, studies on their combinatory effects and the optimization of these procedures have not been adequately conducted. Here, we investigated the performance of thre...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.5b00536
更新日期：2015-11-06 00:00:00
abstract：:Hepatocellular carcinoma is one of the most fatal cancers worldwide. In this study, a reversed-phase-strong cation exchange-reversed-phase three-dimensional liquid chromatography strategy was established and coupled with mass spectrometry to investigate the differential proteome expression of HCC and normal liver tiss...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr500200s
更新日期：2014-08-01 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：:A novel metabolite identification strategy is presented for the combined NMR/MS analysis of complex metabolite mixtures. The approach first identifies metabolite candidates from 1D or 2D NMR spectra by NMR database query, which is followed by the determination of the masses (m/z) of their possible ions, adducts, fragm...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.5b00184
更新日期：2015-06-05 00:00:00
abstract：:O-Linked N-acetyl-β-d-glucosamine (O-GlcNAc) is a dynamic post-translational modification that modifies and regulates over 3000 nuclear, cytoplasmic, and mitochondrial proteins. Upon exposure to stress and injury, cells and tissues increase the O-GlcNAc modification, or O-GlcNAcylation, of numerous proteins promoting ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.6b00369
更新日期：2016-12-02 00:00:00
abstract：:Metal based chemotherapeutic drugs are widely used as an effective method to defeat various cancers. In this study, the mechanism of action of a novel therapeutic agent, [Pd(sac)(terpy)](sac)·4H2O (sac = saccharinate, and terpy = 2,2':6',2″-terpyridine) was studied. To better understand the proteomic changes in respon...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr5006718
更新日期：2014-11-07 00:00:00
abstract：:A robust method has been developed that allows analysis of both N- and O-linked oligosaccharides released from glycoproteins separated using 2D-PAGE and then electroblotted to PVDF membrane. This analysis provides efficient oligosaccharide profiling applicable to glycoproteomic analysis. The method involves the enzyma...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr025538d
更新日期：2002-11-01 00:00:00
abstract：:Circulating microvesicles are able to mediate long-distance cell-cell communications. It is essential to understand how microvesicles from pancreatic cancer act on other cells in the body. In this work, serum-derived microvesicles were isolated from 10 patients with locally advanced pancreatic cancer and healthy contr...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.8b00014
更新日期：2018-04-06 00:00:00
abstract：:Hypoxia inducible factor (HIF)-2α protein expression in solid tumors promotes stem-like phenotype in cancer stem cells and increases tumorigenic potential in nonstem cancer cells. Recently, we have shown that HIF-1/2α gene expression is correlated to neuroblastoma (NB) poor survival and to undifferentiated tumor state...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.6b00457
更新日期：2016-10-07 00:00:00
abstract：:The Baculoviral IAP repeat-containing protein 5 (BIRC5), also known as inhibitor of apoptosis protein survivin, is a member of the chromosomal passenger complex and a key player in mitosis. To investigate the function of BIRC5 in liver regeneration, we analyzed a hepatocyte-specific BIRC5-knockout mouse model using a ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr401188r
更新日期：2014-06-06 00:00:00
abstract：:The process of extracting comprehensive proteome representations is a crucial step for many proteomic studies. While antibody microarrays are an evolving and promising methodology in proteomics, the issue of protein extraction from tissues for this kind of analysis has never been addressed. Here, we describe a single-...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr900844q
更新日期：2010-02-05 00:00:00
abstract：:Cannabinoid 2 receptor (CB2R), a Class-A G-protein coupled receptor (GPCR), is a promising drug target under a wide array of pathological conditions. Rational drug design has been hindered due to our poor understanding of the structural features involved in ligand binding. Binding of a high-affinity biarylpyrazole inv...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.7b00023
更新日期：2017-07-07 00:00:00
abstract：:The exact impact of bariatric surgery in metabolically "healthy" (MH) or "unhealthy" (MU) phenotypes for the study of the metabolic improvement is still unknown. We applied an untargeted LC-ESI-TripleTOF-MS-driven metabolomics approach in serum samples from 39 patients with morbid obesity (MH and MU) 1, 3, and 6 month...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.8b00144
更新日期：2018-08-03 00:00:00
abstract：:Proteomics by mass spectrometry (MS) allows the large-scale identification and quantitation of the cellular proteins in a given biological context. Systems biology studies from proteomics data are largely limited by the accuracy and coverage of quantitative proteomics along with missing values. Toward this end, statis...
journal_title：Journal of proteome research
pub_type： 杂志文章,评审
doi：10.1021/acs.jproteome.9b00228
更新日期：2019-06-07 00:00:00
abstract：:Proteomics has been applied to study intracellular bacteria and phagocytic vacuoles in different host cell lines, especially macrophages (Mφs). For mycobacterial phagosomes, few studies have identified over several hundred proteins for systems assessment of the phagosome maturation and antigen presentation pathways. M...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr101245u
更新日期：2011-05-06 00:00:00
abstract：:Label-free quantification of shotgun proteomics data is a frequently used strategy, offering high dynamic range, sensitivity, and the ability to compare a high number of samples without additional labeling effort. Here, we present a bioinformatics approach that significantly improves label-free quantification results....
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.8b00113
更新日期：2019-01-04 00:00:00
abstract：:Cyanobacteria developed efficient carbon concentrating mechanisms which significantly improve the photosynthetic performance and survival of cells under limiting CO(2) conditions. Dynamic changes of the Synechocystis proteome to CO(2) limitation were investigated using shotgun LC-MS/MS approach with isobaric tag for r...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr100651w
更新日期：2010-11-05 00:00:00
