Atom Nomenclature for QEI

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 QEI

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C9 C9
C10 C10
C11 C11
O1 O1
O2 O2
N1 N1
C7 C7
C8 C8
N2 N2
N3 N3
C12 C12
N5 N5
N4 N4
O3 O3
H1 H1
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H6A H6A
HO1 HO1
HO2 HO2
HN1 HN1
H8 H8
HN2 HN2
HN5 HN5
HN5A HN5A
HN4 HN4