DXX

PCM

Residue type	PCM type	Category	Position	UniProt PTM accession	Entries in PDB
DAR	None	Covalent chemical modification	Amino-acid backbone (N-terminal)		2
SER	None	Covalent chemical modification	Amino-acid side chain (Any position)		5
CYS	None	Covalent chemical modification	Amino-acid side chain (Any position)		0

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PDB entries from 2026-04-01