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1.
Artigo em Inglês | MEDLINE | ID: mdl-27402679

RESUMO

The Functional Annotation of the Mammalian Genome project (FANTOM5) mapped transcription start sites (TSSs) and measured their activities in a diverse range of biological samples. The FANTOM5 project generated a large data set; including detailed information about the profiled samples, the uncovered TSSs at high base-pair resolution on the genome, their transcriptional initiation activities, and further information of transcriptional regulation. Data sets to explore transcriptome in individual cellular states encoded in the mammalian genomes have been enriched by a series of additional analysis, based on the raw experimental data, along with the progress of the research activities. To make the heterogeneous data set accessible and useful for investigators, we developed a web-based database called Semantic catalog of Samples, Transcription initiation And Regulators (SSTAR). SSTAR utilizes the open source wiki software MediaWiki along with the Semantic MediaWiki (SMW) extension, which provides flexibility to model, store, and display a series of data sets produced during the course of the FANTOM5 project. Our use of SMW demonstrates the utility of the framework for dissemination of large-scale analysis results. SSTAR is a case study in handling biological data generated from a large-scale research project in terms of maintenance and growth alongside research activities.Database URL: http://fantom.gsc.riken.jp/5/sstar/.


Assuntos
Bases de Dados de Ácidos Nucleicos , Genoma Humano , Software , Sítio de Iniciação de Transcrição , Transcriptoma , Animais , Humanos , Semântica
2.
Genome Biol ; 16: 22, 2015 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-25723102

RESUMO

The FANTOM5 project investigates transcription initiation activities in more than 1,000 human and mouse primary cells, cell lines and tissues using CAGE. Based on manual curation of sample information and development of an ontology for sample classification, we assemble the resulting data into a centralized data resource (http://fantom.gsc.riken.jp/5/). This resource contains web-based tools and data-access points for the research community to search and extract data related to samples, genes, promoter activities, transcription factors and enhancers across the FANTOM5 atlas.


Assuntos
Genômica/métodos , Regiões Promotoras Genéticas , Software , Iniciação da Transcrição Genética , Animais , Biologia Computacional/métodos , Bases de Dados Genéticas , Conjuntos de Dados como Assunto , Perfilação da Expressão Gênica , Humanos , Camundongos , Transcriptoma , Interface Usuário-Computador
4.
FEBS Lett ; 553(3): 377-80, 2003 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-14572654

RESUMO

Peroxynitrite (ONOO(-)), a reactive nitrogen species, is capable of nitrating tyrosine residue of proteins. Here we show in vitro evidence that plant phenolic compounds can also be nitrated by an ONOO(-)-independent mechanism. In the presence of NaNO(2), H(2)O(2), and horseradish peroxidase (HRP), monophenolic p-coumaric acid (p-CA, 4-hydroxycinnamic acid) was nitrated to form 4-hydroxy-3-nitrocinnamic acid. The reaction was completely inhibited by KCN, an inhibitor for HRP. The antioxidant ascorbate suppressed p-CA nitration and its suppression time depended strongly on ascorbate concentration. We conclude that nitrogen dioxide radical (NO(2)(radical)), but not ONOO(-), produced by a guaiacol peroxidase is the intermediate for phytophenolic nitration.


Assuntos
Peroxidase do Rábano Silvestre/metabolismo , Nitratos/metabolismo , Ácido Peroxinitroso/metabolismo , Fenóis/química , Fenóis/metabolismo , Plantas/metabolismo , Antioxidantes/farmacologia , Ácido Ascórbico/análogos & derivados , Ácido Ascórbico/farmacologia , Ácidos Cumáricos/química , Ácidos Cumáricos/metabolismo , Inibidores Enzimáticos/farmacologia , Radicais Livres/metabolismo , Peroxidase do Rábano Silvestre/antagonistas & inibidores , Nitritos/metabolismo , Dióxido de Nitrogênio/metabolismo , Peroxidase/metabolismo , Cianeto de Potássio/farmacologia , Espectrofotometria/métodos
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