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This is our older gene family page that is no longer maintained.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

Pseudoautosomal regions

At either end of the X and Y chromosomes are homologous regions known as the pseudoautosomal regions (PARs). These two regions pair regularly at male meiosis and undergo recombination. PAR1 is at the tip of the short 'p' arms (Xp22 and Yp11) and PAR2 is at the tip of the long 'q' arms (Xq28 and Yq12).

1. Pseudoautosomal region 1 (PAR1)
2. Pseudoautosomal region 2 (PAR2)

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

Pseudoautosomal region 1:

*XG straddles the PAR1 region boundary*

Pseudoautosomal region 2:

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.