Atom Nomenclature for TTD

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 TTD

Atom Name (V3) Atom Name (V2)
P P
OP1 O1P
OP2 O2P
OP3 O3P
O5' O5*
C5' C5*
C4R C4R
O4' O4*
C3R C3R
O3R O3R
C2' C2*
C1' C1*
N1 N1
C2 C2
O2 O2
N3 N3
C4 C4
O4 O4
C5 C5
C5A C5A
C6 C6
PB PB
O5P O5P
O4P O4P
O5R O5R
C5R C5R
O4R O4R
C2R C2R
C1R C1R
N1T N1T
C2T C2T
O2T O2T
N3T N3T
C4T C4T
O4T O4T
C5T C5T
C5M C5M
C6T C6T
C4' C4*
C3' C3*
O3' O3*
HOP2 2HOP
HOP3 3HOP
H5' 1H5*
H5'' 2H5*
H4R H4R
H3R H3R
H2' 1H2*
H2'' 2H2*
H1' H1*
HN3 HN3
H5A1 1H5A
H5A2 2H5A
H5A3 3H5A
H6 H6
H4P H4P
H5R1 1H5R
H5R2 2H5R
H2R1 1H2R
H2R2 2H2R
H1R H1R
HT HT
H71 1H5M
H72 2H5M
H73 3H5M
H6T H6T
H4' H4*
H1 H1
HO3' H3T