Portions of the website are known to be incompatible with your version of Internet Explorer. If possible, upgrade to IE9 or later, or use another browser such as Chrome or Firefox.

If you are unable or not allowed to upgrade your browser, please contact us.

• Searches are sometimes 'redesigned' if database revisions lead to new parameters and/or new parameter choices.
  
  
  
• When parameters have been modified and we cannot easily map your old choices into the new search, the search will be covered with a X. It means it needs to be revised.
  
  
  
• Please open strategies marked with and click each search that needs revision.
  
  
  

• genome annotations are constantly updated to reflect new biological information concerning the sequences.
  
  
• when annotations are updated during a new release of our websites, some ids may change or be retired.

If your basket is in error, your basket contains old IDs that could not be mapped to new IDs.

• download the basket valid IDs (tab delimited, clear all attributes) into a text file; you can later upload them into a new step
• reset the basket by emptying it