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Ensembl is a bioinformatics research project precisely a Genome Browser aiming to "develop a software system which produces and maintains automatic annotation on selected eukaryotic genomes". It is run in a collaboration between the Wellcome Trust Sanger Institute and the European Bioinformatics Institute, an outstation of the European Molecular Biology Laboratory.

Software and data[]

The project is open source - all data and all software that is produced in the project can be freely accessed and used. But users always find this a pain to deploy and use as it has so many conf files and so many versions that gets released more often than one can keep up with updating.

Most of the software produced and used is written in the language Perl and is based on the BioPerl infrastructure. The Perl API can be easily employed in other genomic projects e.g. for the annotation of gene or clone lists.

The website code uses an extensible plugins system which allows groups to modify the website for their own data sets, e.g. Vega which stores and displays manual annotation and Gramene which stores plant genomes.

Current species[]

The annotated genomes include most finished vertebrates and selected model organisms. Currently this includes:

  • Chordates
    • Mammals: Armadillo, Bush baby, Cat, Chimp, Cow, Dog, Elephant, Guinea pig, Hedgehog, Human, Macaque, Micro bat, Mouse, Opossum, Platypus, Rabbit, Rat, shrew, squirrel, Tenrec, Tree shrew, horse (pre), mouse lemur (pre), pig (pre), pika (pre)
    • Birds: Chicken
    • Fish: Fugu, Tetradodon nigroviridis, Zebrafish, Medaka, Stickleback, Lamprey (pre)
    • Lizard: Anole Lizard (pre)
    • Frog: Xenopus tropicalis
    • Ancient relatives: Ciona intestinalis, Ciona savignyi
  • Invertebrates
    • Insects: Anopheles gambiae (Mosquito), Fruitfly, Aedes aegypti (Mosquito)
    • Worm: Caenorhabditis elegans
  • Yeast: Saccharomyces cerevisiae (Baker's yeast)


The service is used by molecular biologists and bioinformaticians around the world working with genome data of the above organisms. The predictions of coding, controlling and other elements in the genomes can be compared with primary research data and with common repositories of current genomic knowledge (Biological Databases).

The comparison of organisms (comparative genomics or also intergenomics) with respect to their gene structures and the coded proteins is of special interest. The synteny view can be useful educational material for school classes.

See also[]

Databases supported by Bioinformatic Harvester
UniProt | SOURCE | SMART | SOSUI | PSORT | HomoloGene | GFP-cDNA | IPI | OMIM
NCBI-BLAST | Genome-Browser | Ensembl | RZPD | STRING | iHOP | Entrez

External links[]

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