Table 2.
PTM | Modified amino acids at the N-terminus | Modified amino acids | Monoisotopic mass mass (Da) |
---|---|---|---|
Acetylation | All 20 amino acids | K | 42.01 |
Methylation | All 20 amino acids | HKNQRILDEST | 14.01 |
Oxidation | DKNPYRC* | DKNPYRC* | 15.99 |
Phosphorylation | STY | STY | 79.96 |
Artifacts introduced in sample preparations and mass spectrometry experiments are not included.