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[!] The Ensembl web service you requested is temporarily unavailable. We are working to restore the service as soon as possible, and apologise for any inconvenience caused.

We are aware of the problem with our GRCh37 biomart site. Until we are able to fix this you could consider using the archive site ( but note the data on this site has not been updated since February 2014.

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Ensembl mirrors

We now also manage three mirrors of the Ensembl website, hosted in different regions of the Amazon cloud: These will be available while the main service is unavailable - although please note that some of the facilities on this mirror may not be fully functional as they rely on resources hosted at our main data centre.

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