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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This is our older gene family page that is no longer maintained.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.

Mitochondrial respiratory chain complex assembly factors

Click on the Approved Gene Symbol to retrieve the complete gene record

You can view the complexes for which these genes encode assembly factors at our Mitochondrial respiratory chain complex page.

For some of the genes above, orthologs have been shown to encode assembly factors but the function has not been fully demonstrated in humans.  In these cases, the gene name contains the word "homolog".

This online database does not include our confidential data. If you would like to create a new gene symbol and name, the only way to confirm it as unique is by contacting us.