Atom Nomenclature for DBS

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 DBS

Atom Name (V3) Atom Name (V2)
O4 O4
C4 C4
C7 C7
C1 C1
O1 O1
C16 C16
C13 C13
C10 C10
C19 C19
O7 O7
N1 N1
C22 C22
C28 C28
O13 O13
C25 C25
O10 O10
O15 O15
HO4 HO4
HC7 HC7
HO1 HO1
HC13 HC13
HC10 HC10
HN1 HN1
HC22 HC22
H281 1H28
H282 2H28
HO13 HO13
HO15 HO15