Atom Nomenclature for IAV

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 IAV

Atom Name (V3) Atom Name (V2)
O1 O1
C10 C10
N2 N2
C11 C11
C12 C12
O2 O2
O3 O3
C13 C13
C14 C14
C15 C15
C9 C9
C2 C2
C1 C1
N1 N1
C8 C8
C6 C6
C7 C7
C3 C3
C4 C4
C5 C5
HN2 HN2
H11 H11
HO3 HO3
H13 H13
H141 1H14
H142 2H14
H143 3H14
H151 1H15
H152 2H15
H153 3H15
HC91 1HC9
HC92 2HC9
HC1 HC1
HN1 HN1
HC6 HC6
HC3 HC3
HC4 HC4
HC5 HC5