To create a phosphorylated protein residue:
1. Double click the target protein to open the "Change Identification of the Species" dialog.
2. Click the target residue in the "residues" preview box.
3. Select the "residue state" to "phosphorylated.
Other residue states to specify:
phosphorylated
acetylated
ubiquitinated
methylated
hydroxylated
empty
don't care
unknown


