Atom Nomenclature for O3V

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 O3V

Atom Name (V3) Atom Name (V2)
C2 C1
C3 C2
C4 C3
C5 C4
C6 C5
C7 C6
C8 C7
C13 C8
C17 C9
C18 C10
C19 C11
C20 C12
C21 C13
C22 C14
C25 C15
C26 C16
C27 C17
C10 C18
C15 C19
C16 C20
C24 C21
C9 C22
N1 N1
N11 N2
N12 N3
O14 O1
O23 O2
S28 S1
H29 H1
H30 H2
H34 H4
H35 H5
H36 H6
H37 H7
H39 H8
H38 H9
H40 H10
H41 H11
H42 H12
H43 H13
H45 H14
H46 H15
H47 H16
H33 H17
H32 H18
H31 H19
H44 H21