Atom Nomenclature for NST

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 NST

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
N2 N2
S13 S13
C15 C15
O16 O16
O17 O17
C18 C18
C19 C19
S20 S20
C21 C21
C22 C22
O23 O23
O24 O24
O1 O1
O2 O2
HN1 HN1
H3 H3
H4 H4
H5 H5
H7 H7
H19 H19
H22 H22
H23 H23