Atom Nomenclature for PBQ

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 PBQ

Atom Name (V3) Atom Name (V2)
CH CH
CG CG
CD1 CD1
CD2 CD2
CE2 CE2
CR CR
O O
C3 C3
C7 C7
C8 C8
C9 C9
N11 N11
BR13 BR13
BR14 BR14
BR17 BR17
BR18 BR18
BR19 BR19
H3 H3
HD2 HD2
H11 H11
H H