Atom Nomenclature for BFS

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 BFS

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C C
CE1 CE1
CE2 CE2
C1' C1'
C2' C2'
C3' C3'
C4' C4'
C5' C5'
C6' C6'
N N
O O
O2 O2
F5 F5
BR4 BR4
H3 H3
H4 H4
H6 H6
HE1 HE1
HE21 1HE2
HE22 2HE2
HE23 3HE2
H2' H2'
H3' H3'
H5' H5'
H6' H6'
HN HN
HO2 HO2