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1.
Nucleic Acids Res ; 35(Database issue): D339-42, 2007 Jan.
Article in English | MEDLINE | ID: mdl-17158166

ABSTRACT

Genome Information Broker for Viruses (GIB-V) is a comprehensive virus genome/segment database. We extracted 18 418 complete virus genomes/segments from the International Nucleotide Sequence Database Collaboration (INSDC, http://www.insdc.org/) by DNA Data Bank of Japan (DDBJ), EMBL and GenBank and stored them in our system. The list of registered viruses is arranged hierarchically according to taxonomy. Keyword searches can be performed for genome/segment data or biological features of any virus stored in GIB-V. GIB-V is equipped with a BLAST search function, and search results are displayed graphically or in list form. Moreover, the BLAST results can be used online with the ClustalW feature of the DDBJ. All available virus genome/segment data can be collected by the GIB-V download function. GIB-V can be accessed at no charge at http://gib-v.genes.nig.ac.jp/.


Subject(s)
Databases, Nucleic Acid , Genome, Viral , Genomics , Internet , Sequence Alignment , Software , User-Computer Interface
2.
DNA Res ; 13(6): 245-54, 2006 Dec 31.
Article in English | MEDLINE | ID: mdl-17166861

ABSTRACT

A large number of complete microorganism genomes has been sequenced and submitted to the public database and then incorporated into our complete genome database, Genome Information Broker (GIB, http://gib.genes.nig.ac.jp/). However, when comparative genomics is carried out, researchers must be aware that there are protein-coding genes not confirmed by homology or motif search and that reliable protein-coding genes are missing. Therefore, we developed a protocol (Gene Trek in Prokaryote Space, GTPS) for finding possible protein-coding genes in bacterial genomes. GTPS assigns a degree of reliability to predicted protein-coding genes. We first systematically applied the protocol to the complete genomes of all 123 bacterial species and strains that were publicly available as of July 2003, and then to those of 183 species and strains available as of September 2004. We found a number of incorrect genes and several new ones in the genome data in question. We also found a way to estimate the total number of orthologous genes in the bacterial world.


Subject(s)
Bacteria/classification , Genes, Bacterial , Genetics, Microbial , Genome, Bacterial , Bacteria/genetics , Computational Biology , DNA, Bacterial/genetics , Database Management Systems , Open Reading Frames , Prokaryotic Cells
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