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Newer gene family pages are available

This is our older gene family page that is no longer maintained. Please go to our new look gene family index to view a complete list of our new maintained gene families. More information can be found in our gene families help page.

We have created a mapping file (Excel) that will map most of the old families to the new. However because we have changed the way we assign families and how we organise them, this file may not map all the old families.

New Beta Site!

Please visit our new HGNC beta site and let us know what you think via the feedback form.

Old HGNC Gene Families/Groupings Nomenclature (Archive)


This is our old gene family archive which is no longer maintained. Please visit our new gene family pages for up to date family data.

Stem symbol schemes

We strongly encourage the development of nomenclature schemes using a "stem" (or "root") symbol for members of a gene family or grouping, with a hierarchical numbering system to distinguish the individual members. This is an efficient and useful way to name large numbers of related genes, and already works well for a number of established gene groupings. When a new gene nomenclature scheme is proposed, we try to contact a number of scientists prominent in that specialist area, to ensure that the majority are in agreement over the symbols (see Specialist Advisors).

Proposals for new gene nomenclature schemes should be sent to:

Gene families/grouping resources

The pages listed below include finalised HGNC resources, those under review and other sites that do not necessarily contain correct nomenclature. Sites which do use approved nomenclature are shown as HGNC approved. To avoid confusion, the HGNC approved stem symbols are highlighted in bold (within red brackets) and the approved HGNC Gene Family groups without a common "stem" symbol are also highlighted in bold, both are linked to the Nomenclature Database.

The specialist advisor icon denotes there is a specialist advisor for the Gene Family and links to our specialist advisor page.

Download the HGNC Gene Family dataset

Click here for the complete HGNC Gene Family dataset in text format.