CMC
PCM
| Residue type | PCM type | Category | Position | UniProt PTM accession | Entries in PDB |
| ASP | None | Covalent chemical modification | Amino-acid backbone (N-terminal) | 1 | |
| MET | None | Covalent chemical modification | Amino-acid backbone (N-terminal) | 9 | |
| SER | None | Covalent chemical modification | Amino-acid backbone (N-terminal) | 3 | |
| LYS | None | Covalent chemical modification | Amino-acid side chain (Any position) | 4 |
