ABA

PCM

Residue type	PCM type	Category	Position	UniProt PTM accession	Entries in PDB
null	None	Non-standard residue	Amino-acid side chain (Any position)		148
LYS	None	Crosslinker	Amino-acid side chain (Any position)		0
THR	None	Crosslinker	Amino-acid backbone (N-terminal)		0

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PDB entries from 2026-09-30