Atom Nomenclature for PMM

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 PMM

Atom Name (V3) Atom Name (V2)
N5 N5
C6 C6
C7 C7
N8 N8
N1 N1
C2 C2
N2 N2
N3 N3
C4 C4
O4 O4
C4A C4A
C8A C8A
C9 C9
O10 O10
PA PA
O1P O1P
O2P O2P
O3P O3P
H7 H7
HN21 1HN2
HN22 2HN2
HN3 HN3
H91 1H9
H92 2H9
HOP2 2HOP
HOP3 3HOP