Atom Nomenclature for DSD

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 DSD

Atom Name (V3) Atom Name (V2)
C1 C1
O1 O1
O2 O2
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C9 C9
N7 N7
C C
O O
OXT OXT
N8 N8
HO2 HO2
H21 1H2
H22 2H2
H31 1H3
H32 2H3
H41 1H4
H42 2H4
H51 1H5
H52 2H5
H61 1H6
H62 2H6
H7 H7
H8 H8
H91 1H9
H92 2H9
H93 3H9
HN7 HN7
HXT HXT
HN81 1HN8
HN82 2HN8