Atom Nomenclature for DIV

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 DIV

Atom Name (V3) Atom Name (V2)
N N
CA CA
CB1 CB1
CG1 CG1
CB2 CB2
C C
O O
OXT OXT
H 1HN
H2 2HN
HB11 1HB1
HB12 2HB1
HG11 1HG1
HG12 2HG1
HG13 3HG1
HB21 1HB2
HB22 2HB2
HB23 3HB2
HXT HXT