Acetylation
of Protein Amino Termini and
the Side Chain of Lysine
| Amino Acid | Residue Composition |
Residue Monoisotopic Mass |
Delta Mass |
| Glycine (any AA) | C2H4NO (+H) | 58.0293 | 0 |
| Acetyl-Glycine | C4H6NO2 | 100.0399 | 42.0106 |
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For each internal Lysine add 42.0106 u |
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| Lysine and Glutamine have nearly isobaric mass, an acetylation of the Lysine side chain differentiates these two amino acids by 42 u. | |||
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