Atom Nomenclature for OLC

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 OLC

Atom Name (V3) Atom Name (V2)
C18 C18
C10 C10
C9 C9
C17 C17
C11 C11
C8 C8
C24 C24
C16 C16
C12 C12
C7 C7
C15 C15
C13 C13
C6 C6
C14 C14
C5 C5
C4 C4
C3 C3
C2 C2
C21 C21
C1 C1
C22 C22
O19 O19
O25 O25
O23 O23
O20 O20
H18 H18
H18A H18A
H18B H18B
H10 H10
H9 H9
H17 H17
H17A H17A
H11 H11
H11A H11A
H8 H8
H8A H8A
H24 H24
H24A H24A
H16 H16
H16A H16A
H12 H12
H12A H12A
H7 H7
H7A H7A
H15 H15
H15A H15A
H13 H13
H13A H13A
H6 H6
H6A H6A
H14 H14
H14A H14A
H5 H5
H5A H5A
H4 H4
H4A H4A
H3 H3
H3A H3A
H2 H2
H2A H2A
H21 H21
H21A H21A
H22 H22
HO25 HO25
HO23 HO23