NCBI Taxonomy

NAR Molecular Biology Database Collection entry number 297
Federhen, Scott
National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland 20894, USA

Database Description

The NCBI Taxonomy Database includes names and classifications for all of the organisms that are represented in the protein and sequence databases. The taxonomy browser is a convenient way to navigate and search the classification; it is updated continuously as new taxa are added to the database. The taxonomy browser includes a rich set of links to other NCBI resources (sequences, structures, genomes, literature &c.) as well as externally curated links to outside resources (LinkOut links). The taxonomy database is also represented as a domain of Entrez ( and is available as a set of ftp files ( that are updated every two hours.

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