Atom Nomenclature for FID

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 FID

Atom Name (V3) Atom Name (V2)
C2I C2I
N4 N4
C5 C5
C7I C7I
C12 C12
C13 C13
C14 C14
F17 F17
C15 C15
C16 C16
C11 C11
O10 O10
C9 C9
C19 C19
N21 N21
O20 O20
C8I C8I
N1I N1I
O6I O6I
O3I O3I
H4 H4
H13 H13
H15 H15
H16 H16
H9 H9
H211 1H21
H212 2H21
H8I1 1H8I
H8I2 2H8I
H1I H1I