Peak quantification in surface-enhanced laser desorption/ionization by using mixture models.

Abstract:

:Surface-enhanced laser desorption/ionization (SELDI) time of flight (TOF) is a mass spectrometry technology for measuring the composition of a sampled protein mixture. A mass spectrum contains peaks corresponding to proteins in the sample. The peak areas are proportional to the measured concentrations of the corresponding proteins. Quantifying peak areas is difficult for existing methods because peak shapes are not constant across a spectrum and because peaks often overlap. We present a new method for quantifying peak areas. Our method decomposes a spectrum into peaks and a baseline using so-called statistical finite mixture models. We illustrate our method in detail on 8 samples from culture media of adipose tissue and globally on 64 samples from serum to compare our method to the standard Ciphergen method. Both methods give similar estimates for singleton peaks, but not for overlapping peaks. The Ciphergen method overestimates the heights of such peaks while our method still gives appropriate estimates. Peak quantification is an important step in pre-processing SELDI-TOF data and improvements therein will pay off in the later biomarker discovery phase.

journal_name

Proteomics

journal_title

Proteomics

authors

Dijkstra M,Roelofsen H,Vonk RJ,Jansen RC

doi

10.1002/pmic.200600181

subject

Has Abstract

pub_date

2006-10-01 00:00:00

pages

5106-16

issue

19

eissn

1615-9853

issn

1615-9861

journal_volume

6

pub_type

杂志文章
  • Proteome analysis of salt stress response in the cyanobacterium Synechocystis sp. strain PCC 6803.

    abstract::In the present study, changes in protein synthesis patterns after salt shock visualized by 35S-methionine labeling and the changed protein composition in salt-acclimated cells of the cyanobacterium Synechocystis sp. strain PCC 6803 were analyzed by a combination of 2-DE for protein separation and PMF for protein ident...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200500538

    authors: Fulda S,Mikkat S,Huang F,Huckauf J,Marin K,Norling B,Hagemann M

    更新日期:2006-05-01 00:00:00

  • Monocyte lipid rafts contain proteins implicated in vesicular trafficking and phagosome formation.

    abstract::Lipid rafts are membrane microdomains of unique lipid composition that segregate proteins with poorly understood consequences for membrane organization. Identification of raft associated proteins could therefore provide novel insight into raft-dependent functions. Monocytes process antigens for presentation to T cells...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200390067

    authors: Li N,Mak A,Richards DP,Naber C,Keller BO,Li L,Shaw AR

    更新日期:2003-04-01 00:00:00

  • An automated in-gel digestion/iTRAQ-labeling workflow for robust quantification of gel-separated proteins.

    abstract::Simple protein separation by 1DE is a widely used method to reduce sample complexity and to prepare proteins for mass spectrometric identification via in-gel digestion. While several automated solutions are available for in-gel digestion particularly of small cylindric gel plugs derived from 2D gels, the processing of...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.201200366

    authors: Schmidt C,Hesse D,Raabe M,Urlaub H,Jahn O

    更新日期:2013-05-01 00:00:00

  • Technical strategies to reduce the amount of "false significant" results in quantitative proteomics.

    abstract::When the p-value is set at <0.05 in statistical group comparisons, a 5% rate of "false significant" results is expected. In order to test the reliability of our 2-DE method, we loaded each of 24 gels with equal-sized samples (200 mug protein from pooled rat brain, pH 4-7, stained with ruthenium fluorescent stain for v...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200701074

    authors: Fuxius S,Eravci M,Broedel O,Weist S,Mansmann U,Eravci S,Baumgartner A

    更新日期:2008-05-01 00:00:00

  • Protein-protein interactions between two-component system transmitter and receiver domains of Myxococcus xanthus.

    abstract::We present a novel dataset assessing the specificity of protein-protein interactions between 69 transmitter and receiver domains from two-component system (TCS)-signalling pathways. TCS require a conserved protein-protein interaction between partner transmitter and receiver domains for signal transduction. The complex...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200700544

    authors: Whitworth DE,Millard A,Hodgson DA,Hawkins PF

    更新日期:2008-05-01 00:00:00

  • The ROP2 family of Toxoplasma gondii rhoptry proteins: proteomic and genomic characterization and molecular modeling.

    abstract::Four rhoptry proteins (ROP) of Toxoplasma gondii previously identified with mAb have been affinity purified and analyzed by MS; the data obtained allowed the genomic sequences to be assigned to these proteins. As previously suggested for some of them by antibody crossreactivity, these proteins were shown to belong to ...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200600187

    authors: El Hajj H,Demey E,Poncet J,Lebrun M,Wu B,Galéotti N,Fourmaux MN,Mercereau-Puijalon O,Vial H,Labesse G,Dubremetz JF

    更新日期:2006-11-01 00:00:00

  • Proteomic analysis on a high salt tolerance introgression strain of Triticum aestivum/Thinopyrum ponticum.

    abstract::Soil salinity is a major abiotic constraint to agricultural productivity. We successfully bred a new common wheat (Triticum aestivum L.) introgression variety (Shanrong No. 3) with high salt-tolerance via asymmetric somatic hybridization between common wheat cultivar (Jinan 177) and UV-irradiated Agropyron elongatum (...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200700569

    authors: Wang MC,Peng ZY,Li CL,Li F,Liu C,Xia GM

    更新日期:2008-04-01 00:00:00

  • Proteome analysis of porcine epidemic diarrhea virus (PEDV)-infected Vero cells.

    abstract::Porcine epidemic diarrhea virus (PEDV) causes an acute, highly contagious, and devastating viral enteric disease with a high mortality rate in suckling pigs. A large-scale outbreak of PED occurred in China in 2010, with PEDV emerging in the United States in 2013 and spreading rapidly, posing significant economic and p...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.201400458

    authors: Zeng S,Zhang H,Ding Z,Luo R,An K,Liu L,Bi J,Chen H,Xiao S,Fang L

    更新日期:2015-06-01 00:00:00

  • The up-regulation of 14-3-3 proteins in Smad4 deficient epidermis and hair follicles at catagen.

    abstract::Each postnatal hair follicle (HF) perpetually goes through three phases: anagen, catagen, and telogen. The molecular signals that orchestrate the follicular transition between phases are still largely unknown. Our previous study shows that the keratinocyte specific Smad4 knockout mice exhibit progressive alopecia due ...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200700760

    authors: Yuan C,Jiao L,Yang L,Ying W,Hu Z,Liu J,Cui F,Li L,Qian L,Teng Y,Hang H,Qian X,Yang X

    更新日期:2008-06-01 00:00:00

  • Towards a proteomic analysis of atopic dermatitis: a two-dimensional-polyacrylamide gel electrophoresis/mass spectrometric analysis of cultured patient-derived fibroblasts.

    abstract::Atopic dermatitis (AD) is a chronic relapsing inflammatory skin disease typically characterized by a distribution of eczematous skin lesions with lichenification, pruritic excoriations, and dry skin with wide varieties of pathophysiologic aspects. Recently, AD was divided into extrinsic and intrinsic forms according t...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200400998

    authors: Park YD,Kim SY,Jang HS,Seo EY,Namkung JH,Park HS,Cho SY,Paik YK,Yang JM

    更新日期:2004-11-01 00:00:00

  • Identification of the degradome of Isp-1, a major intracellular serine protease of Bacillus subtilis, by two-dimensional gel electrophoresis and matrix- assisted laser desorption/ionization-time of flight analysis.

    abstract::Intracellular serine protease-1 (Isp-1) is a major intracellular serine protease of Bacillus subtilis, whose functions still remain largely unknown. Furthermore, physiological substrates are yet to be determined. To identify Isp-1 substrates, we digested extract obtained from an Isp-1 deficient Bacillus mutant with pu...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200400997

    authors: Lee AY,Goo Park S,Kho CW,Young Park S,Cho S,Lee SC,Lee DH,Myung PK,Park BC

    更新日期:2004-11-01 00:00:00

  • MascotDatfile: an open-source library to fully parse and analyse MASCOT MS/MS search results.

    abstract::MS-based protein identification is an important part of both gel-based and gel-free proteome studies. The MASCOT search engine (http://www.matrixscience.com) provides one of the most popular automated algorithms for this task. Here we present an open-source software library written in Java that parses raw MASCOT resul...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200600682

    authors: Helsens K,Martens L,Vandekerckhove J,Gevaert K

    更新日期:2007-02-01 00:00:00

  • Determination of glycosyl-phosphatidylinositol membrane protein anchorage.

    abstract::A diverse range of proteins are modified by the post-translational covalent attachment of a glycosyl-phosphatidylinositol (GPI) membrane anchor. Hydropathy plots and other computer algorithms can be used to predict the presence of a GPI anchor attachment signal in the nascent polypeptide chain. However, the presence o...

    journal_title:Proteomics

    pub_type: 杂志文章,评审

    doi:10.1002/1615-9861(200106)1:6<748::AID-PROT748>3.0.

    authors: Hooper NM

    更新日期:2001-06-01 00:00:00

  • Immobilization strategies for single-chain antibody microarrays.

    abstract::Sandwich ELISA microarrays have great potential for validating disease biomarkers. Each ELISA relies on robust-affinity reagents that retain activity when immobilized on a solid surface or when labeled for detection. Single-chain antibodies (scFv) are affinity reagents that have greater potential for high-throughput p...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200701036

    authors: Seurynck-Servoss SL,Baird CL,Miller KD,Pefaur NB,Gonzalez RM,Apiyo DO,Engelmann HE,Srivastava S,Kagan J,Rodland KD,Zangar RC

    更新日期:2008-06-01 00:00:00

  • Comparative proteomic analysis provides new insights into mulberry dwarf responses in mulberry (Morus alba L.).

    abstract::Mulberry dwarf (MD) is a serious infectious disease of mulberry caused by phytoplasma. Infection with MD phytoplasma results in stress phenotypes of yellowing, phyllody, stunting, proliferation, and witches' broom. Physiological and biochemical analysis has shown that infection with MD phytoplasma causes an increase i...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200900012

    authors: Ji X,Gai Y,Zheng C,Mu Z

    更新日期:2009-12-01 00:00:00

  • CFP10 discriminates between nonacetylated and acetylated ESAT-6 of Mycobacterium tuberculosis by differential interaction.

    abstract::ESAT-6 (the 6 kDa early secreted antigenic target) protein species in short-term culture filtrate of Mycobacterium tuberculosis were separated in a 4-5 narrow range pI gradient two-dimensional gel electrophoresis (2-DE). Eight ESAT-6 protein species were analyzed in detail by peptide mass fingerprinting matrix-assiste...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200400906

    authors: Okkels LM,Müller EC,Schmid M,Rosenkrands I,Kaufmann SH,Andersen P,Jungblut PR

    更新日期:2004-10-01 00:00:00

  • Protein profile in neuroblastoma cells incubated with S- and R-enantiomers of ibuprofen by iTRAQ-coupled 2-D LC-MS/MS analysis: possible action of induced proteins on Alzheimer's disease.

    abstract::Ibuprofen is a member of the proprionic acid group of nonsteroidal anti-inflammatory drugs (NSAID), with the S-enantiomer being more active than the R-enantiomer. It has been shown to display protective effects against neuroinflammation, which is linked to the pathogenesis of several neurodegenerative disorders, inclu...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200700556

    authors: Zhang J,Sui J,Ching CB,Chen WN

    更新日期:2008-04-01 00:00:00

  • Dynamics of protein phosphorylation on Ser/Thr/Tyr in Bacillus subtilis.

    abstract::The Ser/Thr/Tyr phosphoproteome of Bacillus subtilis was analyzed by a 2-D gel-based approach combining Pro-Q Diamond staining and [(33)P]-labeling. In exponentially growing B. subtilis cells 27 proteins could be identified after staining with Pro-Q Diamond and/or [(33)P]-labeling and one additional protein was labele...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200700232

    authors: Eymann C,Becher D,Bernhardt J,Gronau K,Klutzny A,Hecker M

    更新日期:2007-10-01 00:00:00

  • Lipidomic Analysis Reveals Altered Fatty Acid Metabolism in the Liver of the Symptomatic Niemann-Pick, Type C1 Mouse Model.

    abstract::Niemann-Pick disease, type C1 (NPC1) is a fatal, autosomal recessive, neurodegenerative disorder caused by mutations in the NPC1 gene. As a result of the genetic defect, there is accumulation of unesterified cholesterol and sphingolipids in the late endosomal/lysosomal system causing both visceral and neurological def...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.201800285

    authors: Pergande MR,Serna-Perez F,Mohsin SB,Hanek J,Cologna SM

    更新日期:2019-09-01 00:00:00

  • Proteomics indicates modulation of tubulin polymerization by L-menthol inhibiting human epithelial colorectal adenocarcinoma cell proliferation.

    abstract::Menthol is a naturally occurring cyclic monoterpene used in oral hygiene products, confectionary, pharmaceuticals, cosmetics, pesticides, and as a flavoring agent. In the present study, we analyzed the differentially expressing proteome in L-menthol-treated Caco-2 cell line as it was found to inhibit cell proliferatio...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.201000691

    authors: Faridi U,Sisodia BS,Shukla AK,Shukla RK,Darokar MP,Dwivedi UN,Shasany AK

    更新日期:2011-05-01 00:00:00

  • Increased expression of lysosome membrane protein 2 in glomeruli of patients with idiopathic membranous nephropathy.

    abstract::Urinary microvesicles constitute a rich source of membrane-bound and intracellular proteins that may provide important clues of pathophysiological mechanisms in renal disease. In the current study, we analyzed and compared the proteome of urinary microvesicles from patients with idiopathic membranous nephropathy (iMN)...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.201500127

    authors: Rood IM,Merchant ML,Wilkey DW,Zhang T,Zabrouskov V,van der Vlag J,Dijkman HB,Willemsen BK,Wetzels JF,Klein JB,Deegens JK

    更新日期:2015-11-01 00:00:00

  • High-throughput quantification of selenium in individual serum proteins from a healthy human population using HPLC on-line with isotope dilution inductively coupled plasma-MS.

    abstract::In this study, a method, based on dual column affinity chromatography hyphenated to isotope dilution inductively coupled plasma-quadrupole MS, was developed for selenium determination in selenoprotein P, glutathione peroxidase, and selenoalbumin in human serum samples from a group of healthy volunteers (n=399). Method...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200900677

    authors: Letsiou S,Lu Y,Nomikos T,Antonopoulou S,Panagiotakos D,Pitsavos C,Stefanadis C,Pergantis SA

    更新日期:2010-10-01 00:00:00

  • Addressing the Challenges of High-Throughput Cancer Tissue Proteomics for Clinical Application: ProCan.

    abstract::The cancer tissue proteome has enormous potential as a source of novel predictive biomarkers in oncology. Progress in the development of mass spectrometry (MS)-based tissue proteomics now presents an opportunity to exploit this by applying the strategies of comprehensive molecular profiling and big-data analytics that...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.201900109

    authors: Tully B,Balleine RL,Hains PG,Zhong Q,Reddel RR,Robinson PJ

    更新日期:2019-11-01 00:00:00

  • Proteomic characterization of protein phosphatase 1 complexes in ischemia-reperfusion and ischemic tolerance.

    abstract::Serine/threonine protein phosphatase 1 (PP1) regulates multiple cellular processes. Protein phosphorylation-dephosphorylation is largely altered during ischemia and subsequent reperfusion. The brain is particularly vulnerable to stress resulting from ischemia-reperfusion (IR), however, the acquisition of ischemic tole...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200700214

    authors: Cid C,Garcia-Bonilla L,Camafeita E,Burda J,Salinas M,Alcazar A

    更新日期:2007-09-01 00:00:00

  • Proteomic analysis of mammalian basic proteins by liquid-based two-dimensional column chromatography.

    abstract::To develop a standard method for separating highly basic proteins in mammalian cells, we established a 2-D LC separation system coupled with chromatofocusing/nonporous RP column chromatography (CF/NPRPC) in a ProteomeLab PF2D system. After standardizing conditions for 2-D LC, a 2-D liquid protein map of uninfected mac...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200500433

    authors: Shin YK,Lee HJ,Lee JS,Paik YK

    更新日期:2006-02-01 00:00:00

  • Monitoring protein expression by proteomics: human plasma exposed to benzene.

    abstract::Low levels and long term exposure to benzene is associated with hematotoxicity including aplastic anemia, acute myelogenous leukemia, and lymphoma. Current biomonitoring methods such as urinary phenol, S-phenylmercapturic acid, and trans-trans muconic acid were found to be unreliable as analytical methods to detect be...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200300616

    authors: Joo WA,Kang MJ,Son WK,Lee HJ,Lee DY,Lee E,Kim CW

    更新日期:2003-12-01 00:00:00

  • Determination of the stoichiometry of protein complexes using liquid chromatography with fluorescence and mass spectrometric detection of fluorescently labeled proteolytic peptides.

    abstract::A method for the determination of the stoichiometry of protein complexes has been developed, which is based on proteolytic digestion of the complex, labeling with a fluorescent reagent, specific for amino or sulfhydryl groups, and separation by liquid chromatography with fluorescence and mass spectrometric detection. ...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200300668

    authors: Hochleitner EO,Sondermann P,Lottspeich F

    更新日期:2004-03-01 00:00:00

  • A protein network for phospholipid synthesis uncovered by a variant of the tandem affinity purification method in Escherichia coli.

    abstract::In prokaryotes, acyl carrier protein (ACP) is a cofactor central to a myriad of syntheses, including fatty acid and phospholipid synthesis. To fulfill its function, ACP must therefore interact with a multitude of different enzymes, which includes the thioesterase YbgC. We found a specific interaction between ACP and Y...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200500115

    authors: Gully D,Bouveret E

    更新日期:2006-01-01 00:00:00

  • A two-dimensional liquid-phase separation method coupled with mass spectrometry for proteomic studies of breast cancer and biomarker identification.

    abstract::A two-dimensional liquid-phase separation scheme coupled with mass spectrometry (MS) is presented for proteomic analysis of cell lysates from normal and malignant breast epithelial cell lines. Liquid-phase separations consist of isoelectric focusing as the first dimension and nonporous silica reverse-phase high-perfor...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200300606

    authors: Hamler RL,Zhu K,Buchanan NS,Kreunin P,Kachman MT,Miller FR,Lubman DM

    更新日期:2004-03-01 00:00:00

  • Identification and characterization of a cell surface protein of Prevotella intermedia 17 with broad-spectrum binding activity for extracellular matrix proteins.

    abstract::Prevotella intermedia binds and invades a variety of host cells. This binding is most probably mediated through cell surface proteins termed adhesins. To identify proteins binding to the host extracellular matrix (ECM) component, fibronectin, and study the molecular mechanism underlying bacterial colonization, we appl...

    journal_title:Proteomics

    pub_type: 杂志文章

    doi:10.1002/pmic.200600177

    authors: Yu F,Iyer D,Anaya C,Lewis JP

    更新日期:2006-11-01 00:00:00