Atom Nomenclature for 099

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 099

Atom Name (V3) Atom Name (V2)
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C10 C10
C13 C13
C15 C15
C17 C17
C20 C20
C1 C1
C2 C2
C3 C3
C9 C9
C11 C11
C12 C12
C14 C14
C16 C16
C18 C18
C19 C19
N21 N21
N22 N22
O23 O23
O24 O24
O25 O25
O26 O26
O27 O27
H4 H4
H5 H5
H6 H6
H7 H7
H8 H8
H10 H10
H10A H10A
H20 H20
H1 H1
H2 H2
H3 H3
H9 H9
H9A H9A
H11 H11
H11A H11A
H18 H18
H19 H19
HN21 HN21
HN22 HN22
HO23 HO23
HO24 HO24
HO25 HO25