Atom Nomenclature for ABC

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 ABC

Atom Name (V3) Atom Name (V2)
C1G C1G
C2G C2G
C3G C3G
C4G C4G
C5G C5G
C6G C6G
O5G O5G
O2G O2G
O3G O3G
O4G O4G
C1H C1H
C2H C2H
C3H C3H
C4H C4H
C5H C5H
C6H C6H
O5H O5H
O2H O2H
O3H O3H
O4H O4H
O6H O6H
C1I C1I
C2I C2I
C3I C3I
C4I C4I
C5I C5I
C6I C6I
C7I C7I
O2I O2I
O3I O3I
O4I O4I
O6I O6I
C1J C1J
C2J C2J
C3J C3J
C4J C4J
C5J C5J
C6J C6J
O5J O5J
O2J O2J
O3J O3J
N1J N1J
C1K C1K
C2K C2K
C3K C3K
C4K C4K
C5K C5K
C6K C6K
O5K O5K
O2K O2K
O3K O3K
O4K O4K
O6K O6K
C1L C1L
C2L C2L
C3L C3L
C4L C4L
C5L C5L
C6L C6L
O5L O5L
O2L O2L
O3L O3L
O4L O4L
O1L O1L
H1G H1G
H2G H2G
H3G H3G
H4G H4G
H5G H5G
H6G1 1H6G
H6G2 2H6G
H6G3 3H6G
HO2G GHO2
HO3G GHO3
HO4G GHO4
H1H H1H
H2H H2H
H3H H3H
H4H H4H
H5H H5H
H6H1 1H6H
H6H2 2H6H
HHO2 HHO2
HHO3 HHO3
HHO6 HHO6
H1I H1I
H2I H2I
H3I H3I
H4I H4I
H6I1 1H6I
H6I2 2H6I
H7I H7I
HO2I IHO2
HO3I IHO3
HO6I IHO6
H1J H1J
H2J H2J
H3J H3J
H4J H4J
H5J H5J
H6J1 1H6J
H6J2 2H6J
H6J3 3H6J
HO2J JHO2
HO3J JHO3
HN1 HN1
H1K H1K
H2K H2K
H3K H3K
H4K H4K
H5K H5K
H6K1 1H6K
H6K2 2H6K
HO2K KHO2
HO3K KHO3
HO6K KHO6
H1L H1L
H2L H2L
H3L H3L
H4L H4L
H5L H5L
H6L1 1H6L
H6L2 2H6L
H6L3 3H6L
HO2L LHO2
HO3L LHO3
HO1L LHO1