Atom Nomenclature for TDI

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 TDI

Atom Name (V3) Atom Name (V2)
C2 C2
C4 C4
C5 C5
C6 C6
CS5 CS5
S S
C5' C5*
C4' C4*
C1' C1*
N1' N1*
C10 C10
C9 C9
C8 C8
N7 N7
N6 N6
N1 N1
N3 N3
C2' C2*
C3' C3*
O3' O3*
H2 H2
HS51 1HS5
HS52 2HS5
HS53 3HS5
H5'1 1H5*
H5'2 2H5*
H4' H4*
H1'1 1H1*
H1'2 2H1*
H101 1H10
H102 2H10
H8 H8
HN7 HN7
HN61 1HN6
HN62 2HN6
H2'1 1H2*
H2'2 2H2*
H3' H3*
H1 H1