Atom Nomenclature for AIX

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 AIX

Atom Name (V3) Atom Name (V2)
C8 C8
C5 C5
C6 C6
N1 N1
C2 C2
N3 N3
C4 C4
C1 C1
C3 C3
C7 C7
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
N2 N2
O1 O1
O2 O2
O3 O3
O4 O4
S1 S1
H8 H8
HN1 HN1
HN3 HN3
H4 H4
H1 H1
H1A H1A
H1B H1B
H7 H7
H9 H9
H10 H10
H11 H11
H12 H12
H13 H13
H14 H14
H15 H15
H16 H16
H16A H16A
H16B H16B
HN2 HN2
HN2A HN2A
HO1 HO1