Atom Nomenclature for 4AN

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 4AN

Atom Name (V3) Atom Name (V2)
C1A C1A
O1A O1A
C1 C1
C2 C2
C3 C3
C4 C4
N4 N4
C5 C5
C6 C6
C7 C7
C8 C8
C8A C8A
O8A O8A
N9 N9
C9 C9
C10 C10
H2 H2
H3 H3
HN41 1HN4
HN42 2HN4
H5 H5
H6 H6
H7 H7
HN9 HN9