PYR
PCM
| Residue type | PCM type | Category | Position | UniProt PTM accession | Entries in PDB |
| null | None | Non-standard residue | Amino-acid side chain and backbone (Any position) | 134 | |
| CYS | Pyruvic acid | Named protein modification | Amino-acid side chain and backbone (N-terminal) | PTM-0265 | 0 |
| SER | Pyruvic acid | Named protein modification | Amino-acid side chain and backbone (N-terminal) | PTM-0266 | 0 |
| TYR | Pyruvic acid | Named protein modification | Amino-acid side chain and backbone (N-terminal) | PTM-0662 | 0 |
| CYS | None | Covalent chemical modification | Amino-acid side chain (Any position) | 4 | |
| HIS | None | Covalent chemical modification | Amino-acid side chain (Any position) | 1 | |
| LYS | None | Covalent chemical modification | Amino-acid side chain (Any position) | 58 | |
| SER | Pyruvic acid | Named protein modification | Amino-acid backbone (N-terminal) | 0 |
