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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

ImageMouse (GRCm39)

Search Mouse (Mus musculus)

Genome assembly: GRCm39 (GCA_000001635.9)

ImageMore information and statistics

ImageDownload DNA sequence (FASTA)

ImageConvert your data to GRCm39 coordinates

ImageDisplay your data in Ensembl

Other reference assemblies

Other strains

This species has data on 16 additional strains. View list of strains

Image Credits

Credits for species images

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

What can I find? Short sequence variants and longer structural variants; disease and other phenotypes

ImageMore about variation in Ensembl

ImageDownload all variants (GVF)

ImageVariant Effect PredictorImage

Regulation

What can I find? Regulatory features like enhancers and promoters, and regulatory activity including ATAC-seq and ChIP-seq tracks.

ImageMore about the Ensembl regulatory annotation

ImageExperimental data sources

ImageDownload all regulatory features (GFF)