Atom Nomenclature for U73

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 U73

Atom Name (V3) Atom Name (V2)
O11 O11
C10 C10
N9 N9
C3 C3
N4 N4
C5 C5
S2 S2
C1 C1
C6 C6
C8 C8
C7 C7
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
N17 N17
C18 C18
H4 H4
H5 H5
H6 H6
H8C1 1H8C
H8C2 2H8C
H8C3 3H8C
H7C1 1H7C
H7C2 2H7C
H7C3 3H7C
H121 1H12
H122 2H12
H14 H14
H15 H15
H16 H16
H18 H18