Genetic Databases: Mining


The exhausting pace at which new genomic sequences are deposited with the databanks makes it essential to put efficient retrieval systems at the scientific community's disposal. Entrez and SRS are two such programs, freely accessible from the Web, that enable powerful simple and Boolean queries.

Keywords: sequence; databases; retrieval; entrez; SRS

Figure 1.

Screenshot of an Entrez query showing how to use the ‘Preview’ item in order to add terms in a query and perform Boolean searches.

Figure 2.

Screenshot of a Sequence Retrieval System (SRS) ‘simple query’: here all the ABC transporter sequences from human and mouse in the European Molecular Biology Laboratory (EMBL) databank were requested.

Figure 3.

Screenshot of an SRS ‘extended query’, showing that various items can be selected from the Feature table.



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Further Reading

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Web Links

European Bioinformatics Institute (EBI)

Entrez the query system at NCBI

International Nucleotide Sequence Database (INSD)

SRS the query system at EBI

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How to Cite close
Risler, Jean‐Loup, and Louis, Alexandra(Sep 2005) Genetic Databases: Mining. In: eLS. John Wiley & Sons Ltd, Chichester. [doi: 10.1038/npg.els.0005313]