Atom Nomenclature for IKX

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 IKX

Atom Name (V3) Atom Name (V2)
O1 O1
C1 C1
O2 O2
C2 C2
N1 N1
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
O4 O4
O3 O3
N2 N2
C8 C8
C9 C9
C10 C10
N4 N4
C11 C11
N3 N3
O5 O5
H2 H2
H3 H3
H5 H5
HA HA
H8 H8
HB HB
H101 H101
H102 H102
H4 H4
H111 H111
H112 H112
HC HC