Atom Nomenclature for SKF

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 SKF

Atom Name (V3) Atom Name (V2)
C4 C4
C5 C5
C6 C6
C7 C7
S S
C8 C8
C9 C9
O1 O1
O2 O2
N N
C1 C1
C2 C2
C3 C3
N1 N1
HC4 HC4
HC5 HC5
HC7 HC7
H1N H1N
H2N H2N
HC11 1HC1
HC12 2HC1
HC21 1HC2
HC22 2HC2
HC31 1HC3
HC32 2HC3
HN1 HN1