Atom Nomenclature for HK4

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 HK4

Atom Name (V3) Atom Name (V2)
O1 O1
C1 C1
C6 C6
O2 O2
C7 C7
C5 C5
C4 C4
C3 C3
C2 C2
C8 C8
C9 C9
C10 C10
C12 C12
C13 C13
C14 C14
C21 C21
C11 C11
N2 N2
N1 N1
C20 C20
C18 C18
O4 O4
C19 C19
C16 C16
C15 C15
O3 O3
C17 C17
H2 H2
H73 H73
H72 H72
H71 H71
H5 H5
H4 H4
H3 H3
H6 H6
H7 H7
H1 H1
H9 H9
H191 H191
H192 H192
H193 H193
H8 H8
H172 H172
H171 H171
H173 H173