Rule-based knowledge aggregation for large-scale protein sequence analysis of influenza A viruses.

abstract：BACKGROUND:Dihydrouridine (D) is a modified base found in conserved positions in the D-loop of tRNA in Bacteria, Eukaryota, and some Archaea. Despite the abundant occurrence of D, little is known about its biochemical roles in mediating tRNA function. It is assumed that D may destabilize the structure of tRNA and thus ...

journal_title：BMC bioinformatics

authors： Kasprzak JM,Czerwoniec A,Bujnicki JM

更新日期：2012-06-28 00:00:00

abstract：BACKGROUND:A new algorithm has been developed for generating conservation profiles that reflect the evolutionary history of the subfamily associated with a query sequence. It is based on n-gram patterns (NP{n,m}) which are sets of n residues and m wildcards in windows of size n+m. The generation of conservation profile...

journal_title：BMC bioinformatics

authors： Vries JK,Liu X

更新日期：2008-01-30 00:00:00

abstract：BACKGROUND:To identify and prioritize the influential hub genes in a gene-set or biological pathway, most analyses rely on calculation of marginal effects or tests of statistical significance. These procedures may be inappropriate since hub nodes are common connection points and therefore may interact with other nodes ...

journal_title：BMC bioinformatics

authors： Chang HC,Chu CP,Lin SJ,Hsiao CK

更新日期：2020-03-12 00:00:00

abstract：BACKGROUND:In many bacteria, intragenomic diversity in synonymous codon usage among genes has been reported. However, no quantitative attempt has been made to compare the diversity levels among different genomes. Here, we introduce a mean dissimilarity-based index (Dmean) for quantifying the level of diversity in synon...

journal_title：BMC bioinformatics

authors： Suzuki H,Saito R,Tomita M

更新日期：2009-06-01 00:00:00

abstract：BACKGROUND:Classification and naming is a key step in the analysis, understanding and adequate management of living organisms. However, where to set limits between groups can be puzzling especially in clonal organisms. Within the Mycobacterium tuberculosis complex (MTC), the etiological agent of tuberculosis (TB), expe...

journal_title：BMC bioinformatics

authors： Borile C,Labarre M,Franz S,Sola C,Refrégier G

更新日期：2011-06-02 00:00:00

abstract：BACKGROUND:The double-cut-and-join (DCJ) is a model that is able to efficiently sort a genome into another, generalizing the typical mutations (inversions, fusions, fissions, translocations) to which genomes are subject, but allowing the existence of circular chromosomes at the intermediate steps. In the general model ...

journal_title：BMC bioinformatics

authors： da Silva PH,Machado R,Dantas S,Braga MD

更新日期：2012-01-01 00:00:00

abstract：BACKGROUND:Cluster analysis is the most common unsupervised method for finding hidden groups in data. Clustering presents two main challenges: (1) finding the optimal number of clusters, and (2) removing "outliers" among the objects being clustered. Few clustering algorithms currently deal directly with the outlier pro...

journal_title：BMC bioinformatics

authors： Wang M,Abrams ZB,Kornblau SM,Coombes KR

更新日期：2018-01-08 00:00:00

abstract：BACKGROUND:The diagnosis of many diseases can be often formulated as a decision problem; uncertainty affects these problems so that many computerized Diagnostic Decision Support Systems (in the following, DDSSs) have been developed to aid the physician in interpreting clinical data and thus to improve the quality of th...

journal_title：BMC bioinformatics

authors： d'Acierno A,Esposito M,De Pietro G

更新日期：2013-01-01 00:00:00

abstract：BACKGROUND:The availability of multiple, essentially complete genome sequences of prokaryotes and eukaryotes spurred both the demand and the opportunity for the construction of an evolutionary classification of genes from these genomes. Such a classification system based on orthologous relationships between genes appea...

journal_title：BMC bioinformatics

authors： Tatusov RL,Fedorova ND,Jackson JD,Jacobs AR,Kiryutin B,Koonin EV,Krylov DM,Mazumder R,Mekhedov SL,Nikolskaya AN,Rao BS,Smirnov S,Sverdlov AV,Vasudevan S,Wolf YI,Yin JJ,Natale DA

更新日期：2003-09-11 00:00:00

abstract：BACKGROUND:Inference of sequence homology is inherently an evolutionary question, dependent upon evolutionary divergence. However, the insertion and deletion penalties in the most widely used methods for inferring homology by sequence alignment, including BLAST and profile hidden Markov models (profile HMMs), are not b...

journal_title：BMC bioinformatics

authors： Rivas E,Eddy SR

更新日期：2015-12-10 00:00:00

abstract：BACKGROUND:The abundant data available for protein interaction networks have not yet been fully understood. New types of analyses are needed to reveal organizational principles of these networks to investigate the details of functional and regulatory clusters of proteins. RESULTS:In the present work, individual cluste...

journal_title：BMC bioinformatics

authors： Sen TZ,Kloczkowski A,Jernigan RL

更新日期：2006-07-24 00:00:00

abstract：BACKGROUND:In microarray data analysis, factors such as data quality, biological variation, and the increasingly multi-layered nature of more complex biological systems complicates the modelling of regulatory networks that can represent and capture the interactions among genes. We believe that the use of multiple datas...

journal_title：BMC bioinformatics

authors： Anvar SY,'t Hoen PA,Tucker A

更新日期：2010-01-15 00:00:00

abstract：BACKGROUND:Molecular biology data exist on diverse scales, from the level of molecules to -omics. At the same time, the data at each scale can be categorised into multiple layers, such as the genome, transcriptome, proteome, metabolome, and biochemical pathways. Due to the highly multi-layer and multi-dimensional natur...

journal_title：BMC bioinformatics

authors： Arakawa K,Tamaki S,Kono N,Kido N,Ikegami K,Ogawa R,Tomita M

更新日期：2009-01-23 00:00:00

abstract：BACKGROUND:Computer simulation is a resource which can be employed to identify optimal breeding strategies to effectively and efficiently achieve specific goals in developing improved cultivars. In some instances, it is crucial to assess in silico the options as well as the impact of various crossing schemes and breedi...

journal_title：BMC bioinformatics

authors： Sun X,Mumm RH

更新日期：2016-02-06 00:00:00

abstract：BACKGROUND:Bioluminescent proteins (BLPs) widely exist in many living organisms. As BLPs are featured by the capability of emitting lights, they can be served as biomarkers and easily detected in biomedical research, such as gene expression analysis and signal transduction pathways. Therefore, accurate identification o...

journal_title：BMC bioinformatics

authors： Zhang J,Chai H,Yang G,Ma Z

更新日期：2017-06-05 00:00:00

abstract：BACKGROUND:A common method for presenting and studying biological interaction networks is visualization. Software tools can enhance our ability to explore network visualizations and improve our understanding of biological systems, particularly when these tools offer analysis capabilities. However, most published networ...

journal_title：BMC bioinformatics

authors： Macpherson JI,Pinney JW,Robertson DL

更新日期：2009-03-26 00:00:00

abstract：BACKGROUND:In the last decade, techniques were established for the large scale genome-wide analysis of proteins, RNA, and metabolites, and database solutions have been developed to manage the generated data sets. The Golm Metabolome Database for metabolite data (GMD) represents one such effort to make these data broadl...

journal_title：BMC bioinformatics

authors： Hummel J,Niemann M,Wienkoop S,Schulze W,Steinhauser D,Selbig J,Walther D,Weckwerth W

更新日期：2007-06-23 00:00:00

abstract：BACKGROUND:Transcription factor binding sites (TFBSs) are crucial in the regulation of gene transcription. Recently, chromatin immunoprecipitation followed by cDNA microarray hybridization (ChIP-chip array) has been used to identify potential regulatory sequences, but the procedure can only map the probable protein-DNA...

journal_title：BMC bioinformatics

authors： Lu CC,Yuan WH,Chen TM

更新日期：2008-12-12 00:00:00

abstract：BACKGROUND:The MAQC project demonstrated that microarrays with comparable content show inter- and intra-platform reproducibility. However, since the content of gene databases still increases, the development of new generations of microarrays covering new content is mandatory. To better understand the potential challeng...

journal_title：BMC bioinformatics

authors： Eggle D,Debey-Pascher S,Beyer M,Schultze JL

更新日期：2009-06-18 00:00:00

abstract：BACKGROUND:G-protein-coupled receptors (GPCRs) play a key role in diverse physiological processes and are the targets of almost two-thirds of the marketed drugs. The 3 D structures of GPCRs are largely unavailable; however, a large number of GPCR primary sequences are known. To facilitate the identification and charact...

journal_title：BMC bioinformatics

authors： Peng ZL,Yang JY,Chen X

更新日期：2010-08-09 00:00:00

abstract：BACKGROUND:This paper summarises the lessons and experiences gained from a case study of the application of semantic web technologies to the integration of data from the bacterial species Francisella tularensis novicida (Fn). Fn data sources are disparate and heterogeneous, as multiple laboratories across the world, us...

journal_title：BMC bioinformatics

authors： Anwar N,Hunt E

更新日期：2009-10-01 00:00:00

abstract：BACKGROUND:Very often genome-wide data analysis requires the interoperation of multiple databases and analytic tools. A large number of genome databases and bioinformatics applications are available through the web, but it is difficult to automate interoperation because: 1) the platforms on which the applications run a...

journal_title：BMC bioinformatics

authors： de Knikker R,Guo Y,Li JL,Kwan AK,Yip KY,Cheung DW,Cheung KH

更新日期：2004-03-10 00:00:00

abstract：BACKGROUND:Scientists rarely reuse expert knowledge of phylogeny, in spite of years of effort to assemble a great "Tree of Life" (ToL). A notable exception involves the use of Phylomatic, which provides tools to generate custom phylogenies from a large, pre-computed, expert phylogeny of plant taxa. This suggests great ...

journal_title：BMC bioinformatics

authors： Stoltzfus A,Lapp H,Matasci N,Deus H,Sidlauskas B,Zmasek CM,Vaidya G,Pontelli E,Cranston K,Vos R,Webb CO,Harmon LJ,Pirrung M,O'Meara B,Pennell MW,Mirarab S,Rosenberg MS,Balhoff JP,Bik HM,Heath TA,Midford PE,Brown

更新日期：2013-05-13 00:00:00

abstract：BACKGROUND:Systems biology modeling from microarray data requires the most contemporary structural and functional array annotation. However, microarray annotations, especially for non-commercial, non-traditional biomedical model organisms, are often dated. In addition, most microarray analysis tools do not readily acce...

journal_title：BMC bioinformatics

authors： van den Berg BH,Konieczka JH,McCarthy FM,Burgess SC

更新日期：2009-01-23 00:00:00

abstract：BACKGROUND:The inference of homology between proteins is a key problem in molecular biology The current best approaches only identify approximately 50% of homologies (with a false positive rate set at 1/1000). RESULTS:We present Homology Induction (HI), a new approach to inferring homology. HI uses machine learning to...

journal_title：BMC bioinformatics

authors： Karwath A,King RD

更新日期：2002-04-23 00:00:00

abstract：BACKGROUND:Recent discoveries of a large variety of important roles for non-coding RNAs (ncRNAs) have been reported by numerous researchers. In order to analyze ncRNAs by kernel methods including support vector machines, we propose stem kernels as an extension of string kernels for measuring the similarities between tw...

journal_title：BMC bioinformatics

authors： Sato K,Mituyama T,Asai K,Sakakibara Y

更新日期：2008-07-22 00:00:00

abstract：BACKGROUND:In bioinformatics community, many tasks associate with matching a set of protein query sequences in large sequence datasets. To conduct multiple queries in the database, a common used method is to run BLAST on each original querey or on the concatenated queries. It is inefficient since it doesn't exploit the...

journal_title：BMC bioinformatics

authors： Ge H,Sun L,Yu J

更新日期：2017-11-21 00:00:00

abstract：BACKGROUND:In this short article, we discuss a simple method for assessing sample size requirements in microarray experiments. RESULTS:Our method starts with the output from a permutation-based analysis for a set of pilot data, e.g. from the SAM package. Then for a given hypothesized mean difference and various sample...

journal_title：BMC bioinformatics

authors： Tibshirani R

更新日期：2006-03-02 00:00:00

abstract：BACKGROUND:PSI-BLAST, an extremely popular tool for sequence similarity search, features the utilization of Position-Specific Scoring Matrix (PSSM) constructed from a multiple sequence alignment (MSA). PSSM allows the detection of more distant homologs than a general amino acid substitution matrix does. An accurate est...

journal_title：BMC bioinformatics

authors： Oda T,Lim K,Tomii K

更新日期：2017-06-02 00:00:00

abstract：BACKGROUND:Clinical studies often track dose-response curves of subjects over time. One can easily model the dose-response curve at each time point with Hill equation, but such a model fails to capture the temporal evolution of the curves. On the other hand, one can use Gompertz equation to model the temporal behaviors...

journal_title：BMC bioinformatics

authors： Dhruba SR,Rahman A,Rahman R,Ghosh S,Pal R

更新日期：2019-06-20 00:00:00