Atom Nomenclature for TRE

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 TRE

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
O2 O2
O3 O3
O4 O4
O5 O5
O6 O6
C1P C7
C2P C8
C3P C9
C4P C10
C5P C11
C6P C12
O1 O1
O2P O7
O3P O8
O4P O9
O5P O10
O6P O11
HC1 H1
HC2 H2
HC3 H3
HC4 H4
HC5 H5
HC61 H6
HC62 H7
HO2 H8
HO3 H9
HO4 H10
HO6 H11
HC1P H12
HC2P H13
HC3P H14
HC4P H15
HC5P H16
H6P1 H17
H6P2 H18
HO2P H19
HO3P H20
HO4P H21
HO6P H22