Atom Nomenclature for BIH

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 BIH

Atom Name (V3) Atom Name (V2)
O31 O31
S3 S3
O32 O32
O3 O3
C2 C2
C1 C1
C C
C8A C8A
C5 C5
C4A C4A
C4 C4
C9 C9
C8 C8
C7 C7
S6 S6
O6 O6
O61 O61
O1 O1
HO3 HO3
H1 H1
H H
H5 H5
H4 H4
H9 H9
H8 H8
HO6 HO6