Begin your search by typing in your search word into the search box in the right hand corner of any CATH page and click 'Quick Search'.

The CATH search engine can be used in different ways and for different purposes.

• For information about how to find a particular domain go to - PDB code/Domain ID search

• For information about how to use the CATH search engine using your own structural or functional search word go to - Text Search

• For information about how to browse the different levels of the CATH hierarchy go to - Browse the CATH hierarchy