Atom Nomenclature for PDI

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 PDI

Atom Name (V3) Atom Name (V2)
O3P O3P
P P
O1P O1P
O2P O2P
OA OA
CA CA
CB CB
CG CG
OG OG
HOP3 3HOP
HOP2 2HOP
HA1 HA1
HA2 HA2
HB1 HB1
HB2 HB2
HG1 HG1
HG2 HG2
HGT HGT