Atom Nomenclature for 218

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 218

Atom Name (V3) Atom Name (V2)
CM2 CM2
C2A C2A
N1A N1A
C6A C6A
C5A C5A
C7A C7A
N3 N3
C2 C2
C1 C1
C6 C6
C5 C5
CM6 CM6
CM7 CM7
OM7 OM7
C4 C4
CM4 CM4
C4A C4A
N4A N4A
N3A N3A
HM21 1HM2
HM22 2HM2
HM23 3HM2
H6A H6A
H7A1 1H7A
H7A2 2H7A
H2 H2
H1 H1
H6 H6
HM61 1HM6
HM62 2HM6
HM71 1HM7
HM72 2HM7
HOM7 HOM7
HM41 1HM4
HM42 2HM4
HM43 3HM4
H4A1 1H4A
H4A2 2H4A