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Quick Guide to Nomenclature for Genes

When symbolizing and naming novel genes and genomic features, it is important that these symbols and names be unique identifiers. The MGD Nomenclature Committee provides advice and assistance in assigning new symbols and names. Please contact us at nomen@jax.org.

Below are some basic rules and guidelines to assist in the symbol and naming process.

Mouse symbols:

Mouse names:

Other information when publishing:

Chromosome designations:

Protein designations:

Protein designations follow the same rules as gene symbols, with the following two distinctions:

Gene symbol to use:

To distinguish between mRNA, genomic DNA, and cDNA, write the relevant prefix in parentheses; e.g., (mRNA) Rbp1.


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB), Gene Ontology (GO)
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last database update
09/10/2019
MGI 6.14
The Jackson Laboratory