Atom Nomenclature for PNM

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 PNM

Atom Name (V3) Atom Name (V2)
O8 O8
C7 C7
N4 N4
C3 C3
C11 C11
O13 O13
O12 O12
C2 C2
C10 C10
C9 C9
S1 S1
C5 C5
C6 C6
N14 N14
C15 C15
O16 O16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
C23 C23
HC7 HC7
H4 H4
HC3 HC3
HXT HXT
H101 1H10
H102 2H10
H103 3H10
HC91 1HC9
HC92 2HC9
HC93 3HC9
HC5 HC5
HC6 HC6
H14 H14
H171 1H17
H172 2H17
H19 H19
H20 H20
H21 H21
H22 H22
H23 H23