Atom Nomenclature for NTN

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 NTN

Atom Name (V3) Atom Name (V2)
NZ NZ
CI1 CI1
CI2 CI2
NI1 NI1
CI3 CI3
CI4 CI4
NI2 NI2
CI5 CI5
CI6 CI6
HZ1 1HZ
HZ2 2HZ
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6