Atom Nomenclature for OAD

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 OAD

Atom Name (V3) Atom Name (V2)
PA PA
O1A O1A
O2A O2A
O5' O5*
C5' C5*
C4' C4*
O4' O4*
C3' C3*
O3' O3*
C2' C2*
O2' O2*
C1' C1*
N9 N9
C8 C8
N7 N7
C5 C5
C6 C6
N6 N6
N1 N1
C2 C2
N3 N3
C4 C4
O3A O3A
PB PB
O1B O1B
O2B O2B
O2D RO2*
O5D RO5*
C5D RC5*
C4D RC4*
O4D RO4*
C3D RC3*
O3D RO3*
C2D RC2*
C1D RC1*
O1D RO1*
C6D RC6*
O6D RO6*
C7D RC7*
HOA2 2HOA
H5'1 1H5*
H5'2 2H5*
H'4 4H*
H'3 3H*
HO'3 3HO*
H'2 2H*
HO'2 2HO*
H'1 1H*
H8 H8
H61 1H6
H62 2H6
H2 H2
HOB2 2HOB
H5R1 1H5R
H5R2 2H5R
HR'4 4HR*
HR'3 3HR*
HOR3 3HOR
HR'2 2HR*
HR'1 1HR*
HOR1 1HOR
H7R1 1H7R
H7R2 2H7R
H7R3 3H7R