Atom Nomenclature for BSI

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 BSI

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C7 C7
C9 C9
C10 C10
C16 C16
C19 C19
C20 C20
C21 C21
C22 C22
C24 C24
C27 C27
O28 O28
C4 C4
C5 C5
C6 C6
N8 N8
S15 S15
C17 C17
C18 C18
C23 C23
C25 C25
C26 C26
O29 O29
C43 C43
O45 O45
O46 O46
HC1 HC1
HC2 HC2
HC71 1HC7
HC72 2HC7
HC9 HC9
HC01 1HC0
HC02 2HC0
HC20 HC20
HC21 HC21
HC24 HC24
HC27 HC27
HC5 HC5
HC6 HC6
HC17 HC17
HC18 HC18
HC23 HC23
HC25 HC25
HC26 HC26
HO46 HO46