Mus musculus (Photo courtesy of The Jackson Laboratory)

The July 2007 mouse (Mus musculus) genome data were obtained from the Build 37 assembly by NCBI and the Mouse Genome Sequencing Consortium.

### Sample position queries

A genome position can be specified by the accession number of a sequenced genomic region, an mRNA or EST, a chromosomal coordinate range, or keywords from the GenBank description of an mRNA. The following list shows examples of valid position queries for the Mouse genome. See the User's Guide for more information.

Request: |  | Genome Browser Response:
chr16 |  | Displays all of chromosome 16
chr16:1-5000000 |  | Displays first 5 million bases of chr 16
chr16:1000000+2000 |  | Displays a region of chr 16 that spans 2000 bases, starting with position 1000000
AC072048.4 |  | Displays region of contig AC072048.4
D16Mit120 |  | Displays region around STS marker DMit16120 from the MGI consensus genetic map, including 100,000 bases on each side as well
D16Mit120;D16Mit149 |  | Displays region between STS markers D16Mit120 and D16Mit149
BC012683 |  | Displays alignment location of mRNA with GenBank accession BC012683
AW045217 |  | Displays alignment location of EST with GenBank accession AW045217
Ncam2 |  | Displays region of genome with official MGI mouse genetic nomenclature Ncam2
pseudogene mRNA |  | Lists transcribed pseudogenes but not cDNAs
zinc finger |  | Lists many zinc finger mRNAs
kruppel zinc finger |  | Lists only kruppel-like zinc fingers
huntington |  | Lists candidate genes associated with Huntington's disease
Smith,D. |  | Lists mRNAs deposited by co-author D. Smith
Use this last format for author queries. Although GenBank requires the search format Smith D, internally it uses the format Smith,D..

### Assembly details

NCBI Build 37, which includes approximately 2.6 Gb of sequence, is considered to be "essentially complete". The assembly includes chromosomes 1-19, X, Y, M (mitochondrial DNA) and Un (unmapped clone contigs). More information about this version is available on the NCBI Build 37 Data web page.

For information about the process used to assemble this version, see the NCBI website. On chromosome Y in this assembly, only the short arm has reliable mapping data; therefore, most of the contigs on the Y chromosome are unplaced. Note that the UCSC mm9 database contains only the reference strain C57BL/6J.

Bulk downloads of the sequence and annotation data are available via the Genome Browser FTP server or the Downloads page.

The mm9 annotation tracks were generated by UCSC and collaborators worldwide. See the credits page for a detailed list of the organizations and individuals who contributed to this release.