SFE
PCM
| Residue type | PCM type | Category | Position | UniProt PTM accession | Entries in PDB |
| DPN | Beta-amino acid | Named protein modification | Amino-acid side chain and backbone (Any position) | 235 | |
| KWS | None | Covalent chemical modification | Amino-acid side chain (Any position) | 0 | |
| KWS | None | Covalent chemical modification | Amino-acid side chain (Any position) | 2 |
