The IMSR is a searchable online database of mouse strains and stocks available worldwide, including inbred, mutant, and genetically engineered mice. The goal of the IMSR is to assist the international scientific community in locating and obtaining mouse resources for research. Note that the data content found in the IMSR is as it was supplied by data provider sites.

Search IMSR for strains or mutants

For each strain listed in the IMSR, users can obtain information about:

• Where a strain is available (Holder Site)
• In what state(s) a strain is available (e.g. live, frozen, germplasm, ES cells)
• Links to further information about a strain
• Links for contacting the holder to order a strain or send a query

Example Search Result:

N	Strain/Stock Designation	Holder Site	State Key	Strain Type(s)	Strain/Stock Synonyms	Chr	Allele Symbol	Allele Name	Gene Name	Mutation Type(s)
+	B6.Cg-Rorasg + +/+ Myo5ad Bmp5se/J	JAX	embryo	congenic strain		9	Bmp5se	short ear	bone morphogenetic protein 5	spontaneous
						9	Myo5ad	dilute	myosin Va	spontaneous
						9	Rorasg	staggerer	RAR-related orphan receptor alpha	spontaneous

Results of an IMSR search on strain, gene or mutant symbols/names returns a table of matching results, providing links to strain data at the holder's Web site, an email form for specific inquiries, and links to information about mutant alleles at the Mouse Genome Informatics (MGI) website.

Use the IMSR and related resources

Search IMSR for strains or mutants
(find the strain you are seeking from this worldwide catalog)

Participate in IMSR by listing your mouse resources
(how to submit mouse holdings for inclusion in the IMSR)

Search MGI (Mouse Genome Informatics)
(find more information on phenotypes, mutations & genes of the laboratory mouse)

Check Mouse Nomenclature Guides for Strains and Genes
(consult the official nomenclature guidelines for mouse strains, genes, and mutant alleles)

Learn about the FIMRe (Federation of International Mouse Resources)
(find information about this newly formed collaboration of worldwide centers)