Atom Nomenclature for EXI

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 EXI

Atom Name (V3) Atom Name (V2)
N01 N01
C02 C02
N02 N02
C03 C03
C04 C04
C05 C05
C06 C06
C07 C07
C08 C08
C09 C09
N11 N11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
C17 C17
N17 N17
C18 C18
C19 C19
N20 N20
C21 C21
HN02 HN02
HN0A HN0A
H03 H03
H05 H05
H07 H07
H07A H07A
H07B H07B
H08 H08
H08A H08A
H09 H09
H09A H09A
H12 H12
H14 H14
H16 H16
H17 H17
H17A H17A
H17B H17B
H18 H18
H18A H18A
H19 H19
H19A H19A
HN20 HN20
H21 H21
H21A H21A
H21B H21B