Atom Nomenclature for PRX

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 PRX

Atom Name (V3) Atom Name (V2)
O2' O2'
C2' C2'
C1' C1'
O4' O4'
C4' C4'
C5' C5'
O5' O5'
P P
O1P O1P
O2P O2P
O3P O3P
C1P C1P
C2P C2P
C3P C3P
C3' C3'
O3' O3'
N9 N9
C8 C8
N7 N7
C5 C5
C4 C4
N3 N3
C2 C2
N1 N1
C6 C6
N6 N6
H2' H2'
H1 H1
H1' H1'
H4' H4'
H5'1 H5'1
H5'2 H5'2
H2P H2P
H1P1 H1P1
H1P2 H1P2
H2P1 H2P1
H2P2 H2P2
H3P1 H3P1
H3P2 H3P2
H3P3 H3P3
H3' H3'
H2 H2
H8 H8
H3 H3
HN61 HN61
HN62 HN62