Simultaneous fitting of real-time PCR data with efficiency of amplification modeled as Gaussian function of target fluorescence.

Abstract:

BACKGROUND:In real-time PCR, it is necessary to consider the efficiency of amplification (EA) of amplicons in order to determine initial target levels properly. EAs can be deduced from standard curves, but these involve extra effort and cost and may yield invalid EAs. Alternatively, EA can be extracted from individual fluorescence curves. Unfortunately, this is not reliable enough. RESULTS:Here we introduce simultaneous non-linear fitting to determine - without standard curves - an optimal common EA for all samples of a group. In order to adjust EA as a function of target fluorescence, and still to describe fluorescence as a function of cycle number, we use an iterative algorithm that increases fluorescence cycle by cycle and thus simulates the PCR process. A Gauss peak function is used to model the decrease of EA with increasing amplicon accumulation. Our approach was validated experimentally with hydrolysis probe or SYBR green detection with dilution series of 5 different targets. It performed distinctly better in terms of accuracy than standard curve, DART-PCR, and LinRegPCR approaches. Based on reliable EAs, it was possible to detect that for some amplicons, extraordinary fluorescence (EA > 2.00) was generated with locked nucleic acid hydrolysis probes, but not with SYBR green. CONCLUSION:In comparison to previously reported approaches that are based on the separate analysis of each curve and on modelling EA as a function of cycle number, our approach yields more accurate and precise estimates of relative initial target levels.

journal_name

BMC Bioinformatics

journal_title

BMC bioinformatics

authors

Batsch A,Noetel A,Fork C,Urban A,Lazic D,Lucas T,Pietsch J,Lazar A,Schömig E,Gründemann D

doi

10.1186/1471-2105-9-95

subject

Has Abstract

pub_date

2008-02-12 00:00:00

pages

95

issn

1471-2105

pii

1471-2105-9-95

journal_volume

9

pub_type

杂志文章
  • Effective automated pipeline for 3D reconstruction of synapses based on deep learning.

    abstract:BACKGROUND:The locations and shapes of synapses are important in reconstructing connectomes and analyzing synaptic plasticity. However, current synapse detection and segmentation methods are still not adequate for accurately acquiring the synaptic connectivity, and they cannot effectively alleviate the burden of synaps...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-018-2232-0

    authors: Xiao C,Li W,Deng H,Chen X,Yang Y,Xie Q,Han H

    更新日期:2018-07-13 00:00:00

  • An SVM-based system for predicting protein subnuclear localizations.

    abstract:BACKGROUND:The large gap between the number of protein sequences in databases and the number of functionally characterized proteins calls for the development of a fast computational tool for the prediction of subnuclear and subcellular localizations generally applicable to protein sequences. The information on localiza...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-6-291

    authors: Lei Z,Dai Y

    更新日期:2005-12-07 00:00:00

  • A new advance in alternative splicing databases: from catalogue to detailed analysis of regulation of expression and function of human alternative splicing variants.

    abstract:BACKGROUND:Most human genes produce several transcripts with different exon contents by using alternative promoters, alternative polyadenylation sites and alternative splice sites. Much effort has been devoted to describing known gene transcripts through the development of numerous databases. Nevertheless, owing to the...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-8-180

    authors: de la Grange P,Dutertre M,Correa M,Auboeuf D

    更新日期:2007-06-04 00:00:00

  • LSX: automated reduction of gene-specific lineage evolutionary rate heterogeneity for multi-gene phylogeny inference.

    abstract:BACKGROUND:Lineage rate heterogeneity can be a major source of bias, especially in multi-gene phylogeny inference. We had previously tackled this issue by developing LS3, a data subselection algorithm that, by removing fast-evolving sequences in a gene-specific manner, identifies subsets of sequences that evolve at a r...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-019-3020-1

    authors: Rivera-Rivera CJ,Montoya-Burgos JI

    更新日期:2019-08-13 00:00:00

  • Finding motif pairs in the interactions between heterogeneous proteins via bootstrapping and boosting.

    abstract:BACKGROUND:Supervised learning and many stochastic methods for predicting protein-protein interactions require both negative and positive interactions in the training data set. Unlike positive interactions, negative interactions cannot be readily obtained from interaction data, so these must be generated. In protein-pr...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-10-S1-S57

    authors: Kim J,Huang DS,Han K

    更新日期:2009-01-30 00:00:00

  • Determining gene expression on a single pair of microarrays.

    abstract:BACKGROUND:In microarray experiments the numbers of replicates are often limited due to factors such as cost, availability of sample or poor hybridization. There are currently few choices for the analysis of a pair of microarrays where N = 1 in each condition. In this paper, we demonstrate the effectiveness of a new al...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-9-489

    authors: Reid RW,Fodor AA

    更新日期:2008-11-21 00:00:00

  • Quality determination and the repair of poor quality spots in array experiments.

    abstract:BACKGROUND:A common feature of microarray experiments is the occurrence of missing gene expression data. These missing values occur for a variety of reasons, in particular, because of the filtering of poor quality spots and the removal of undefined values when a logarithmic transformation is applied to negative backgro...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-6-234

    authors: Tom BD,Gilks WR,Brooke-Powell ET,Ajioka JW

    更新日期:2005-09-26 00:00:00

  • Exploring community structure in biological networks with random graphs.

    abstract:BACKGROUND:Community structure is ubiquitous in biological networks. There has been an increased interest in unraveling the community structure of biological systems as it may provide important insights into a system's functional components and the impact of local structures on dynamics at a global scale. Choosing an a...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-15-220

    authors: Sah P,Singh LO,Clauset A,Bansal S

    更新日期:2014-06-25 00:00:00

  • Metabolite signal identification in accurate mass metabolomics data with MZedDB, an interactive m/z annotation tool utilising predicted ionisation behaviour 'rules'.

    abstract:BACKGROUND:Metabolomics experiments using Mass Spectrometry (MS) technology measure the mass to charge ratio (m/z) and intensity of ionised molecules in crude extracts of complex biological samples to generate high dimensional metabolite 'fingerprint' or metabolite 'profile' data. High resolution MS instruments perform...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-10-227

    authors: Draper J,Enot DP,Parker D,Beckmann M,Snowdon S,Lin W,Zubair H

    更新日期:2009-07-21 00:00:00

  • RWRMTN: a tool for predicting disease-associated microRNAs based on a microRNA-target gene network.

    abstract:BACKGROUND:The misregulation of microRNA (miRNA) has been shown to cause diseases. Recently, we have proposed a computational method based on a random walk framework on a miRNA-target gene network to predict disease-associated miRNAs. The prediction performance of our method is better than that of some existing state-o...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-020-03578-3

    authors: Le DH,Tran TTH

    更新日期:2020-06-15 00:00:00

  • Automated multigroup outlier identification in molecular high-throughput data using bagplots and gemplots.

    abstract:BACKGROUND:Analyses of molecular high-throughput data often lack in robustness, i.e. results are very sensitive to the addition or removal of a single observation. Therefore, the identification of extreme observations is an important step of quality control before doing further data analysis. Standard outlier detection...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-017-1645-5

    authors: Kruppa J,Jung K

    更新日期:2017-05-02 00:00:00

  • 3DScapeCS: application of three dimensional, parallel, dynamic network visualization in Cytoscape.

    abstract:BACKGROUND:The exponential growth of gigantic biological data from various sources, such as protein-protein interaction (PPI), genome sequences scaffolding, Mass spectrometry (MS) molecular networking and metabolic flux, demands an efficient way for better visualization and interpretation beyond the conventional, two-d...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-14-322

    authors: Wang Q,Tang B,Song L,Ren B,Liang Q,Xie F,Zhuo Y,Liu X,Zhang L

    更新日期:2013-11-14 00:00:00

  • Visualizing complex feature interactions and feature sharing in genomic deep neural networks.

    abstract:BACKGROUND:Visualization tools for deep learning models typically focus on discovering key input features without considering how such low level features are combined in intermediate layers to make decisions. Moreover, many of these methods examine a network's response to specific input examples that may be insufficien...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-019-2957-4

    authors: Liu G,Zeng H,Gifford DK

    更新日期:2019-07-19 00:00:00

  • Exploring matrix factorization techniques for significant genes identification of Alzheimer's disease microarray gene expression data.

    abstract:BACKGROUND:The wide use of high-throughput DNA microarray technology provide an increasingly detailed view of human transcriptome from hundreds to thousands of genes. Although biomedical researchers typically design microarray experiments to explore specific biological contexts, the relationships between genes are hard...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-12-S5-S7

    authors: Kong W,Mou X,Hu X

    更新日期:2011-01-01 00:00:00

  • SBML-SAT: a systems biology markup language (SBML) based sensitivity analysis tool.

    abstract:BACKGROUND:It has long been recognized that sensitivity analysis plays a key role in modeling and analyzing cellular and biochemical processes. Systems biology markup language (SBML) has become a well-known platform for coding and sharing mathematical models of such processes. However, current SBML compatible software ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-9-342

    authors: Zi Z,Zheng Y,Rundell AE,Klipp E

    更新日期:2008-08-15 00:00:00

  • Ciruvis: a web-based tool for rule networks and interaction detection using rule-based classifiers.

    abstract:BACKGROUND:The use of classification algorithms is becoming increasingly important for the field of computational biology. However, not only the quality of the classification, but also its biological interpretation is important. This interpretation may be eased if interacting elements can be identified and visualized, ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-15-139

    authors: Bornelöv S,Marillet S,Komorowski J

    更新日期:2014-05-12 00:00:00

  • Oligo kernels for datamining on biological sequences: a case study on prokaryotic translation initiation sites.

    abstract:BACKGROUND:Kernel-based learning algorithms are among the most advanced machine learning methods and have been successfully applied to a variety of sequence classification tasks within the field of bioinformatics. Conventional kernels utilized so far do not provide an easy interpretation of the learnt representations i...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-5-169

    authors: Meinicke P,Tech M,Morgenstern B,Merkl R

    更新日期:2004-10-28 00:00:00

  • 2D electrophoresis image brightness correction based on gradient interval histogram.

    abstract:BACKGROUND:Two-dimensional electrophoresis (2DE) is one of the most widely applied techniques in comparative proteomics. The basic task of 2DE is to identify differential protein expression by quantitative analysis of 2DE images. To reduce the errors of spot quantification in 2DE images, a novel brightness correction m...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-020-3432-y

    authors: Ou Q,Xiao J,Yu L,Wu K,Xiong B

    更新日期:2020-03-19 00:00:00

  • Bayesian inference of biochemical kinetic parameters using the linear noise approximation.

    abstract:BACKGROUND:Fluorescent and luminescent gene reporters allow us to dynamically quantify changes in molecular species concentration over time on the single cell level. The mathematical modeling of their interaction through multivariate dynamical models requires the development of effective statistical methods to calibrat...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-10-343

    authors: Komorowski M,Finkenstädt B,Harper CV,Rand DA

    更新日期:2009-10-19 00:00:00

  • A high-throughput de novo sequencing approach for shotgun proteomics using high-resolution tandem mass spectrometry.

    abstract:BACKGROUND:High-resolution tandem mass spectra can now be readily acquired with hybrid instruments, such as LTQ-Orbitrap and LTQ-FT, in high-throughput shotgun proteomics workflows. The improved spectral quality enables more accurate de novo sequencing for identification of post-translational modifications and amino ac...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-11-118

    authors: Pan C,Park BH,McDonald WH,Carey PA,Banfield JF,VerBerkmoes NC,Hettich RL,Samatova NF

    更新日期:2010-03-05 00:00:00

  • Detecting lateral gene transfers by statistical reconciliation of phylogenetic forests.

    abstract:BACKGROUND:To understand the evolutionary role of Lateral Gene Transfer (LGT), accurate methods are needed to identify transferred genes and infer their timing of acquisition. Phylogenetic methods are particularly promising for this purpose, but the reconciliation of a gene tree with a reference (species) tree is compu...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-11-324

    authors: Abby SS,Tannier E,Gouy M,Daubin V

    更新日期:2010-06-15 00:00:00

  • Generating quantitative models describing the sequence specificity of biological processes with the stabilized matrix method.

    abstract:BACKGROUND:Many processes in molecular biology involve the recognition of short sequences of nucleic-or amino acids, such as the binding of immunogenic peptides to major histocompatibility complex (MHC) molecules. From experimental data, a model of the sequence specificity of these processes can be constructed, such as...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-6-132

    authors: Peters B,Sette A

    更新日期:2005-05-31 00:00:00

  • A new method for 2D gel spot alignment: application to the analysis of large sample sets in clinical proteomics.

    abstract:BACKGROUND:In current comparative proteomics studies, the large number of images generated by 2D gels is currently compared using spot matching algorithms. Unfortunately, differences in gel migration and sample variability make efficient spot alignment very difficult to obtain, and, as consequence most of the software ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-9-460

    authors: Pérès S,Molina L,Salvetat N,Granier C,Molina F

    更新日期:2008-10-28 00:00:00

  • Robust detection of periodic time series measured from biological systems.

    abstract:BACKGROUND:Periodic phenomena are widespread in biology. The problem of finding periodicity in biological time series can be viewed as a multiple hypothesis testing of the spectral content of a given time series. The exact noise characteristics are unknown in many bioinformatics applications. Furthermore, the observed ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-6-117

    authors: Ahdesmäki M,Lähdesmäki H,Pearson R,Huttunen H,Yli-Harja O

    更新日期:2005-05-13 00:00:00

  • XLPM: efficient algorithm for the analysis of protein-protein contacts using chemical cross-linking mass spectrometry.

    abstract:BACKGROUND:Chemical cross-linking is used for protein-protein contacts mapping and for structural analysis. One of the difficulties in cross-linking studies is the analysis of mass-spectrometry data and the assignment of the site of cross-link incorporation. The difficulties are due to higher charges of fragment ions, ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-15-S11-S16

    authors: Jaiswal M,Crabtree N,Bauer MA,Hall R,Raney KD,Zybailov BL

    更新日期:2014-01-01 00:00:00

  • Integrating multiple molecular sources into a clinical risk prediction signature by extracting complementary information.

    abstract:BACKGROUND:High-throughput technology allows for genome-wide measurements at different molecular levels for the same patient, e.g. single nucleotide polymorphisms (SNPs) and gene expression. Correspondingly, it might be beneficial to also integrate complementary information from different molecular levels when building...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-016-1183-6

    authors: Hieke S,Benner A,Schlenl RF,Schumacher M,Bullinger L,Binder H

    更新日期:2016-08-30 00:00:00

  • Identification of novel alternative splicing biomarkers for breast cancer with LC/MS/MS and RNA-Seq.

    abstract:BACKGROUND:Alternative splicing isoforms have been reported as a new and robust class of diagnostic biomarkers. Over 95% of human genes are estimated to be alternatively spliced as a powerful means of producing functionally diverse proteins from a single gene. The emergence of next-generation sequencing technologies, e...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-020-03824-8

    authors: Zhang F,Deng CK,Wang M,Deng B,Barber R,Huang G

    更新日期:2020-12-03 00:00:00

  • Blazing Signature Filter: a library for fast pairwise similarity comparisons.

    abstract:BACKGROUND:Identifying similarities between datasets is a fundamental task in data mining and has become an integral part of modern scientific investigation. Whether the task is to identify co-expressed genes in large-scale expression surveys or to predict combinations of gene knockouts which would elicit a similar phe...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-018-2210-6

    authors: Lee JY,Fujimoto GM,Wilson R,Wiley HS,Payne SH

    更新日期:2018-06-11 00:00:00

  • ESTIMA, a tool for EST management in a multi-project environment.

    abstract:BACKGROUND:Single-pass, partial sequencing of complementary DNA (cDNA) libraries generates thousands of chromatograms that are processed into high quality expressed sequence tags (ESTs), and then assembled into contigs representative of putative genes. Usually, to be of value, ESTs and contigs must be associated with m...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-5-176

    authors: Kumar CG,LeDuc R,Gong G,Roinishivili L,Lewin HA,Liu L

    更新日期:2004-11-04 00:00:00

  • Statistical assessment and visualization of synergies for large-scale sparse drug combination datasets.

    abstract:BACKGROUND:Drug combinations have the potential to improve efficacy while limiting toxicity. To robustly identify synergistic combinations, high-throughput screens using full dose-response surface are desirable but require an impractical number of data points. Screening of a sparse number of doses per drug allows to sc...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-019-2642-7

    authors: Amzallag A,Ramaswamy S,Benes CH

    更新日期:2019-02-18 00:00:00