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Upcoming Ensembl Platform Transition

This is the final release of its kind on this website.

In summer 2026, this site will bring you to the new Ensembl platform currently at beta.ensembl.org.
Please bookmark this archive to retain access to the current site, tools and functionality until they are available on the new platform -> jun2026.archive.ensembl.org

ImageLion (PanLeo1.0)

Search Lion (Panthera leo)

Gene annotation

What can I find? Protein-coding and non-coding genes, splice variants, cDNA and protein sequences, non-coding RNAs.

ImageMore about this genebuild

ImageDownload FASTA files for genes, cDNAs, ncRNA, proteins

ImageDownload GTF or GFF3 files for genes, cDNAs, ncRNA, proteins

ImageUpdate your old Ensembl IDs

Comparative genomics

What can I find? Homologues, gene trees, and whole genome alignments across multiple species.

ImageMore about comparative analysis

ImageDownload alignments (EMF)

Variation

This species currently has no variation database. However you can process your own variants using the Variant Effect Predictor:

ImageVariant Effect PredictorImage