Atom Nomenclature for 9PP

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 9PP

Atom Name (V3) Atom Name (V2)
N9 N9
C8 C8
N7 N7
C5 C5
C6 C6
N6 N6
N1 N1
C2 C2
N2 N2
N3 N3
C4 C4
C10 C10
C11 C11
C12 C12
O13 O13
P P
C14 C14
O2P O2P
O3P O3P
O1P O1P
H81 1H8
HN61 1HN6
HN62 2HN6
HN21 1HN2
HN22 2HN2
H101 1H10
H102 2H10
H111 1H11
H121 1H12
H122 2H12
H123 3H12
H141 1H14
H142 2H14