Atom Nomenclature for NAT

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 NAT

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
N8 N8
C9 C9
N10 N10
C11 C11
C12 C12
O13 O13
C14 C14
O15 O15
C16 C16
C17 C17
C18 C18
O19 O19
S20 S20
H1 H1
H3 H3
H5 H5
H6 H6
H7 H7
HN8 HN8
HN10 HN10
HO13 HO13
H161 1H16
H162 2H16
H171 1H17
H172 2H17
H173 3H17
H181 1H18
H182 2H18
H183 3H18