Atom Nomenclature for RIS

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 RIS

Atom Name (V3) Atom Name (V2)
O12 O12
P9 P9
O11 O11
O10 O10
C8 C8
O13 O13
P14 P14
O16 O16
O15 O15
O17 O17
C7 C7
C2 C2
C1 C1
C6 C6
C5 C5
N4 N4
C3 C3
H12 H12
H13 H13
H16 H16
H15 H15
HC71 1HC7
HC72 2HC7
HC1 HC1
HC6 HC6
HC5 HC5
HC3 HC3
HO1 HO1