You can update the chemical modifications that you use to conduct a peptide identification search.

The available modifications are defined in the Chemical Modifications view on the Administration page (see Open the Chemical Modifications view).

You can use the Chemical Modifications view to:

  • Customize the chemical modifications that you use to do your search.
  • Import a new list or the latest UNIMOD list.
  • Modify the chemical modification list by adding amino acids to the modifications, creating new modifications, or activating or deactivating existing modifications.

NOTE

A modification must be active to be usable during a search.