Atom Nomenclature for CBE

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 CBE

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
S4 S4
C5 C5
C6 C6
O7 O7
C8 C8
O9 O9
N10 N10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
H11 1H1
H12A 2H1
H13A 3H1
H51 1H5
H52 2H5
H61 1H6
H62 2H6
H10 H10
H12 H12
H13 H13
H14 H14
H15 H15
H16 H16