Atom Nomenclature for INR

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 INR

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C6 C6
N7 N7
C3 C3
C8 C8
C4 C4
C5 C5
O10 O10
C9 C9
C11 C11
C12 C12
C15 C15
O13 O13
N14 N14
C16 C16
C20 C20
C19 C19
C18 C18
S21 S21
C17 C17
O24 O24
O23 O23
O22 O22
HC6 HC6
H7 H7
HC3 HC3
HC4 HC4
HC5 HC5
H14 H14
H20 H20
H18 H18
H17 H17
H24 H24