Atom Nomenclature for 3PG

The atom nomenclature in PDB data files was revised with the release of data in the PDB Format Version 3.0. These changes make the PDB atom names used by PDB compliant with existing IUPAC nomenclature for standard amino acid and nucleotides (Pure & Appl. Chem., 70, 117-142, 1998) with the exception of the well established convention for C-terminal atoms OXT and HXT. A small number of additional changes were introduced in Version 3 to make atom labeling more conventional. The following chemical diagrams and tables provide the correspondences between atom names used in Version 3 and Version 2 PDB formats.

Labeled Chemical Diagrams

Chemical diagram with format V3 atom labels (heavy atoms)
Chemical diagram with format V3 atom labels (all atoms)
Chemical diagram with format V2 atom labels (heavy atoms)
Chemical diagram with format V2 atom labels (all atoms)

Atom Name Correspondences for 3PG

Atom Name (V3) Atom Name (V2)
C1 C1
O1 O1
O2 O2
C2 C2
O3 O3
C3 C3
O1P O1P
P P
O2P O2P
O3P O3P
O4P O4P
HO2 HO2
H2 H2
HO3 HO3
H31 1H3
H32 2H3
HOP3 3HOP
HOP4 4HOP