The following table describes the columns on the Annotated Modifications page, Found Modifications page, and Unknown Modifications page. All three pages have the same columns.
Column | Description |
|---|---|
Name | Displays the name of the modification. |
Abbreviation | Displays the abbreviation of the name of the modification. |
Delta Mass | Displays the monoisotopic mass difference associated with the modification. |
Delta Average Mass | Displays the average mass difference associated with the modification. |
Substitution | Displays the chemical group substitution that occurs with the modification. |
Leaving Group | Displays the chemical group that is lost. |
Is Substitution | Displays the name of the amino acid that substitutes for the target amino acid. The substitute amino acid has a different mass than the target amino acid. |
Position Type | Displays the location where the modification might occur. Valid values are as follows:
|
Unimod Accession | Displays the accession number assigned to the modification by unimod.org. Modifications imported from unimod.org have an accession number greater than 0. User-added modifications have an accession number of 0. |
Position | Displays the position of the modification in the protein. |