Atom Nomenclature for D4T

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 D4T

Atom Name (V3) Atom Name (V2)
PC PC
O1C O1C
O2C O2C
O3C O3C
O7' O7'
PB PB
O1B O1B
O2B O2B
O6' O6'
PA PA
O1A O1A
O2A O2A
O5' O5'
C5' C5'
C4' C4'
O4' O4'
C1' C1'
N1 N1
C6 C6
C2 C2
O2 O2
N3 N3
C4 C4
O4 O4
C5 C5
C5A C5A
C2' C2'
C3' C3'
H1CO OH1C
H2CO OH2C
H2BO OH2B
H2AO OH2A
H5'1 1H5'
H5'2 2H5'
H4'C CH4'
H1'C CH1'
H66 6H6
HN3 HN3
HCA1 1HCA
HCA2 2HCA
HCA3 3HCA
H2'C CH2'
H3'C CH3'