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The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.

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  • Tools: Analyze data using NCBI software
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NCBI Announcements

  • New NCBI Insights Blog: Sequence updates in human genome assembly GRCh38

    Apr 23, 2014

    The latest NCBI Insights blog post explores just one of the many changes and improvements introduced by the newest human reference genome released in December 2013, GRCh38. 

  • HomoloGene release 68 now available

    Apr 22, 2014

    HomoloGene release 68 is now available on Homologene! In this release, genome annotation was updated for 19 organisms, the number of HomoloGene groups increased to 44,233, and one organism, Xenopus tropicalis, was added.  Release 68 is also available on the FTP site.

  • Milestone: NCBI's Taxonomy database contains over 300,000 species with formal scientific names!

    Apr 18, 2014

    NCBI’s Taxonomy database has now surpassed 300,000 individual records of species with formal scientific names. The majority of these represent eukaryotic organisms. While worldwide estimates of prokaryotic and viral species number in the millions or tens of millions, very few have been formally described, isolated, or are able to be cultured. However, the Taxonomy database contains listings for nearly all of the prokaryotes and viruses that have been described.

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