WellInverter: a web application for the analysis of fluorescent reporter gene data.

Abstract:

BACKGROUND:Fluorescent reporter genes have become widely used for monitoring gene expression in living cells. When a microbial strain carrying a reporter gene is grown in a microplate reader, the fluorescence and the absorbance (optical density) of the culture can be automatically measured every few minutes in a highly parallelized way. The extraction of useful information from the resulting large amounts of data is not easy to achieve, because the fluorescence and absorbance measurements are only indirectly related to promoter activities and protein concentrations, requiring mathematical models of the expression of reporter genes for their interpretation. Although the principles of the analysis of reporter gene data are well-established today, there is a lack of general-purpose bioinformatics tools based on generic measurement models and sound inference procedures. This has motivated the development of WellInverter, a web application based on well-known methods for regularized linear inversion. RESULTS:We present a new version of WellInverter that considerably improves the performance and usability of the original application. In particular, we have put in place a parallel computing architecture with a load balancer to distribute analysis queries over several back-end servers, we have completely redesigned the graphical user interface to better support the different analysis steps, and we have developed a plug-in system for the parsing of data files produced by microplate readers from different manufacturers. We illustrate the functioning of WellInverter by analyzing data of the expression of a fluorescent reporter gene controlled by a phage promoter in growing Escherichia coli populations. We show that the expression pattern in different growth media, supporting different growth rates, corresponds to the pattern expected for a constitutive gene. CONCLUSIONS:The new version of WellInverter is a robust, easy-to-use and scalable web application, which has been deployed on two publicly accessible web servers and which can also be installed locally. A demo version of the application with two sample datasets is available on-line.

journal_name

BMC Bioinformatics

journal_title

BMC bioinformatics

authors

Martin Y,Page M,Blanchet C,de Jong H

doi

10.1186/s12859-019-2920-4

subject

Has Abstract

pub_date

2019-06-11 00:00:00

pages

309

issue

1

issn

1471-2105

pii

10.1186/s12859-019-2920-4

journal_volume

20

pub_type

杂志文章
  • Statistical significance of quantitative PCR.

    abstract:BACKGROUND:PCR has the potential to detect and precisely quantify specific DNA sequences, but it is not yet often used as a fully quantitative method. A number of data collection and processing strategies have been described for the implementation of quantitative PCR. However, they can be experimentally cumbersome, the...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-8-131

    authors: Karlen Y,McNair A,Perseguers S,Mazza C,Mermod N

    更新日期:2007-04-20 00:00:00

  • Correction to: Similarities and differences between variants called with human reference genome HG19 or HG38.

    abstract::After publication of this supplement article. ...

    journal_title:BMC bioinformatics

    pub_type: 已发布勘误

    doi:10.1186/s12859-019-2776-7

    authors: Pan B,Kusko R,Xiao W,Zheng Y,Liu Z,Xiao C,Sakkiah S,Guo W,Gong P,Zhang C,Ge W,Shi L,Tong W,Hong H

    更新日期:2019-05-15 00:00:00

  • Drug-target interaction prediction using semi-bipartite graph model and deep learning.

    abstract:BACKGROUND:Identifying drug-target interaction is a key element in drug discovery. In silico prediction of drug-target interaction can speed up the process of identifying unknown interactions between drugs and target proteins. In recent studies, handcrafted features, similarity metrics and machine learning methods have...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-020-3518-6

    authors: Eslami Manoochehri H,Nourani M

    更新日期:2020-07-06 00:00:00

  • Assembly-free genome comparison based on next-generation sequencing reads and variable length patterns.

    abstract:BACKGROUND:With the advent of Next-Generation Sequencing technologies (NGS), a large amount of short read data has been generated. If a reference genome is not available, the assembly of a template sequence is usually challenging because of repeats and the short length of reads. When NGS reads cannot be mapped onto a r...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-15-S9-S1

    authors: Comin M,Schimd M

    更新日期:2014-01-01 00:00:00

  • Computational evaluation of TIS annotation for prokaryotic genomes.

    abstract:BACKGROUND:Accurate annotation of translation initiation sites (TISs) is essential for understanding the translation initiation mechanism. However, the reliability of TIS annotation in widely used databases such as RefSeq is uncertain due to the lack of experimental benchmarks. RESULTS:Based on a homogeneity assumptio...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-9-160

    authors: Hu GQ,Zheng X,Ju LN,Zhu H,She ZS

    更新日期:2008-03-25 00:00:00

  • Nonparametric relevance-shifted multiple testing procedures for the analysis of high-dimensional multivariate data with small sample sizes.

    abstract:BACKGROUND:In many research areas it is necessary to find differences between treatment groups with several variables. For example, studies of microarray data seek to find a significant difference in location parameters from zero or one for ratios thereof for each variable. However, in some studies a significant deviat...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-9-54

    authors: Frömke C,Hothorn LA,Kropf S

    更新日期:2008-01-27 00:00:00

  • Is EC class predictable from reaction mechanism?

    abstract:BACKGROUND:We investigate the relationships between the EC (Enzyme Commission) class, the associated chemical reaction, and the reaction mechanism by building predictive models using Support Vector Machine (SVM), Random Forest (RF) and k-Nearest Neighbours (kNN). We consider two ways of encoding the reaction mechanism ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-13-60

    authors: Nath N,Mitchell JB

    更新日期:2012-04-24 00:00:00

  • Markov chain Monte Carlo for active module identification problem.

    abstract:BACKGROUND:Integrative network methods are commonly used for interpretation of high-throughput experimental biological data: transcriptomics, proteomics, metabolomics and others. One of the common approaches is finding a connected subnetwork of a global interaction network that best encompasses significant individual c...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-020-03572-9

    authors: Alexeev N,Isomurodov J,Sukhov V,Korotkevich G,Sergushichev A

    更新日期:2020-11-18 00:00:00

  • Probe-level linear model fitting and mixture modeling results in high accuracy detection of differential gene expression.

    abstract:BACKGROUND:The identification of differentially expressed genes (DEGs) from Affymetrix GeneChips arrays is currently done by first computing expression levels from the low-level probe intensities, then deriving significance by comparing these expression levels between conditions. The proposed PL-LM (Probe-Level Linear ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-7-391

    authors: Lemieux S

    更新日期:2006-08-25 00:00:00

  • Components of the antigen processing and presentation pathway revealed by gene expression microarray analysis following B cell antigen receptor (BCR) stimulation.

    abstract:BACKGROUND:Activation of naïve B lymphocytes by extracellular ligands, e.g. antigen, lipopolysaccharide (LPS) and CD40 ligand, induces a combination of common and ligand-specific phenotypic changes through complex signal transduction pathways. For example, although all three of these ligands induce proliferation, only ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-7-237

    authors: Lee JA,Sinkovits RS,Mock D,Rab EL,Cai J,Yang P,Saunders B,Hsueh RC,Choi S,Subramaniam S,Scheuermann RH,Alliance for Cellular Signaling.

    更新日期:2006-05-02 00:00:00

  • Process attributes in bio-ontologies.

    abstract:BACKGROUND:Biomedical processes can provide essential information about the (mal-) functioning of an organism and are thus frequently represented in biomedical terminologies and ontologies, including the GO Biological Process branch. These processes often need to be described and categorised in terms of their attribute...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-13-217

    authors: Andrade AQ,Blondé W,Hastings J,Schulz S

    更新日期:2012-08-28 00:00:00

  • Extending the evaluation of Genia Event task toward knowledge base construction and comparison to Gene Regulation Ontology task.

    abstract:BACKGROUND:The third edition of the BioNLP Shared Task was held with the grand theme "knowledge base construction (KB)". The Genia Event (GE) task was re-designed and implemented in light of this theme. For its final report, the participating systems were evaluated from a perspective of annotation. To further explore t...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-16-S10-S3

    authors: Kim JD,Kim JJ,Han X,Rebholz-Schuhmann D

    更新日期:2015-01-01 00:00:00

  • tcR: an R package for T cell receptor repertoire advanced data analysis.

    abstract:BACKGROUND:The Immunoglobulins (IG) and the T cell receptors (TR) play the key role in antigen recognition during the adaptive immune response. Recent progress in next-generation sequencing technologies has provided an opportunity for the deep T cell receptor repertoire profiling. However, a specialised software is req...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-015-0613-1

    authors: Nazarov VI,Pogorelyy MV,Komech EA,Zvyagin IV,Bolotin DA,Shugay M,Chudakov DM,Lebedev YB,Mamedov IZ

    更新日期:2015-05-28 00:00:00

  • Rigorous assessment and integration of the sequence and structure based features to predict hot spots.

    abstract:BACKGROUND:Systematic mutagenesis studies have shown that only a few interface residues termed hot spots contribute significantly to the binding free energy of protein-protein interactions. Therefore, hot spots prediction becomes increasingly important for well understanding the essence of proteins interactions and hel...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-12-311

    authors: Chen R,Chen W,Yang S,Wu D,Wang Y,Tian Y,Shi Y

    更新日期:2011-07-29 00:00:00

  • A universal genomic coordinate translator for comparative genomics.

    abstract:BACKGROUND:Genomic duplications constitute major events in the evolution of species, allowing paralogous copies of genes to take on fine-tuned biological roles. Unambiguously identifying the orthology relationship between copies across multiple genomes can be resolved by synteny, i.e. the conserved order of genomic seq...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-15-227

    authors: Zamani N,Sundström G,Meadows JR,Höppner MP,Dainat J,Lantz H,Haas BJ,Grabherr MG

    更新日期:2014-06-30 00:00:00

  • The InDeVal insertion/deletion evaluation tool: a program for finding target regions in DNA sequences and for aiding in sequence comparison.

    abstract:BACKGROUND:The program InDeVal was originally developed to help researchers find known regions of insertion/deletion activity (with the exception of isolated single-base indels) in newly determined Poaceae trnL-F sequences and compare them with 533 previously determined sequences. It is supplied with input files design...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-5-173

    authors: Stoneberg Holt SD,Holt JA

    更新日期:2004-10-29 00:00:00

  • ICoVax 2013: the 3rd ISV Pre-conference Computational Vaccinology Workshop.

    abstract::Following last year's computational vaccinology workshop in Shanghai, China, the third ISV Pre-conference Computational Vaccinology Workshop (ICoVax 2013) was held in Barcelona, Spain. ICoVax 2013 provided an international platform for the attendees to showcase their research and discuss problems and solutions in the ...

    journal_title:BMC bioinformatics

    pub_type:

    doi:10.1186/1471-2105-15-S4-I1

    authors: De Groot AS,De Groot P,He Y

    更新日期:2014-01-01 00:00:00

  • Principal components analysis based methodology to identify differentially expressed genes in time-course microarray data.

    abstract:BACKGROUND:Time-course microarray experiments are being increasingly used to characterize dynamic biological processes. In these experiments, the goal is to identify genes differentially expressed in time-course data, measured between different biological conditions. These differentially expressed genes can reveal the ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-9-267

    authors: Jonnalagadda S,Srinivasan R

    更新日期:2008-06-06 00:00:00

  • HapSolo: an optimization approach for removing secondary haplotigs during diploid genome assembly and scaffolding.

    abstract:BACKGROUND:Despite marked recent improvements in long-read sequencing technology, the assembly of diploid genomes remains a difficult task. A major obstacle is distinguishing between alternative contigs that represent highly heterozygous regions. If primary and secondary contigs are not properly identified, the primary...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-020-03939-y

    authors: Solares EA,Tao Y,Long AD,Gaut BS

    更新日期:2021-01-06 00:00:00

  • Large scale analysis of protein conformational transitions from aqueous to non-aqueous media.

    abstract:BACKGROUND:Biocatalysis in organic solvents is nowadays a common practice with a large potential in Biotechnology. Several studies report that proteins which are co-crystallized or soaked in organic solvents preserve their fold integrity showing almost identical arrangements when compared to their aqueous forms. Howeve...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-018-2044-2

    authors: Rueda AJV,Monzon AM,Ardanaz SM,Iglesias LE,Parisi G

    更新日期:2018-01-30 00:00:00

  • Discovering motifs that induce sequencing errors.

    abstract:BACKGROUND:Elevated sequencing error rates are the most predominant obstacle in single-nucleotide polymorphism (SNP) detection, which is a major goal in the bulk of current studies using next-generation sequencing (NGS). Beyond routinely handled generic sources of errors, certain base calling errors relate to specific ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-14-S5-S1

    authors: Allhoff M,Schönhuth A,Martin M,Costa IG,Rahmann S,Marschall T

    更新日期:2013-01-01 00:00:00

  • Multi-omic analysis of signalling factors in inflammatory comorbidities.

    abstract:BACKGROUND:Inflammation is a core element of many different, systemic and chronic diseases that usually involve an important autoimmune component. The clinical phase of inflammatory diseases is often the culmination of a long series of pathologic events that started years before. The systemic characteristics and relate...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-018-2413-x

    authors: Xiao H,Bartoszek K,Lio' P

    更新日期:2018-11-30 00:00:00

  • Bayesian mixture regression analysis for regulation of Pluripotency in ES cells.

    abstract:BACKGROUND:Observed levels of gene expression strongly depend on both activity of DNA binding transcription factors (TFs) and chromatin state through different histone modifications (HMs). In order to recover the functional relationship between local chromatin state, TF binding and observed levels of gene expression, r...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-019-3331-2

    authors: Aflakparast M,Geeven G,de Gunst MCM

    更新日期:2020-01-02 00:00:00

  • DNAscan: personal computer compatible NGS analysis, annotation and visualisation.

    abstract:BACKGROUND:Next Generation Sequencing (NGS) is a commonly used technology for studying the genetic basis of biological processes and it underpins the aspirations of precision medicine. However, there are significant challenges when dealing with NGS data. Firstly, a huge number of bioinformatics tools for a wide range o...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-019-2791-8

    authors: Iacoangeli A,Al Khleifat A,Sproviero W,Shatunov A,Jones AR,Morgan SL,Pittman A,Dobson RJ,Newhouse SJ,Al-Chalabi A

    更新日期:2019-04-27 00:00:00

  • Bioinformatics Resource Manager: a systems biology web tool for microRNA and omics data integration.

    abstract:BACKGROUND:The Bioinformatics Resource Manager (BRM) is a web-based tool developed to facilitate identifier conversion and data integration for Homo sapiens (human), Mus musculus (mouse), Rattus norvegicus (rat), Danio rerio (zebrafish), and Macaca mulatta (macaque), as well as perform orthologous conversions among the...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-019-2805-6

    authors: Brown J,Phillips AR,Lewis DA,Mans MA,Chang Y,Tanguay RL,Peterson ES,Waters KM,Tilton SC

    更新日期:2019-05-17 00:00:00

  • Efficient and automated large-scale detection of structural relationships in proteins with a flexible aligner.

    abstract:BACKGROUND:The total number of known three-dimensional protein structures is rapidly increasing. Consequently, the need for fast structural search against complete databases without a significant loss of accuracy is increasingly demanding. Recently, TopSearch, an ultra-fast method for finding rigid structural relations...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/s12859-015-0866-8

    authors: Gutiérrez FI,Rodriguez-Valenzuela F,Ibarra IL,Devos DP,Melo F

    更新日期:2016-01-05 00:00:00

  • Redundancy in electronic health record corpora: analysis, impact on text mining performance and mitigation strategies.

    abstract:BACKGROUND:The increasing availability of Electronic Health Record (EHR) data and specifically free-text patient notes presents opportunities for phenotype extraction. Text-mining methods in particular can help disease modeling by mapping named-entities mentions to terminologies and clustering semantically related term...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-14-10

    authors: Cohen R,Elhadad M,Elhadad N

    更新日期:2013-01-16 00:00:00

  • ORFer--retrieval of protein sequences and open reading frames from GenBank and storage into relational databases or text files.

    abstract:BACKGROUND:Functional genomics involves the parallel experimentation with large sets of proteins. This requires management of large sets of open reading frames as a prerequisite of the cloning and recombinant expression of these proteins. RESULTS:A Java program was developed for retrieval of protein and nucleic acid s...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-3-40

    authors: Büssow K,Hoffmann S,Sievert V

    更新日期:2002-12-19 00:00:00

  • Computational analysis of gene expression space associated with metastatic cancer.

    abstract:BACKGROUND:Prostate carcinoma is among the most common types of cancer affecting hundreds of thousands people every year. Once the metastatic form of prostate carcinoma is documented, the majority of patients die from their tumors as opposed to other causes. The key to successful treatment is in the earliest possible d...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-10-S11-S6

    authors: Ptitsyn A

    更新日期:2009-10-08 00:00:00

  • Sequence-based identification of recombination spots using pseudo nucleic acid representation and recursive feature extraction by linear kernel SVM.

    abstract:BACKGROUND:Identification of the recombination hot/cold spots is critical for understanding the mechanism of recombination as well as the genome evolution process. However, experimental identification of recombination spots is both time-consuming and costly. Developing an accurate and automated method for reliably and ...

    journal_title:BMC bioinformatics

    pub_type: 杂志文章

    doi:10.1186/1471-2105-15-340

    authors: Li L,Yu S,Xiao W,Li Y,Huang L,Zheng X,Zhou S,Yang H

    更新日期:2014-11-20 00:00:00