Atom Nomenclature for HDT

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 HDT

Atom Name (V3) Atom Name (V2)
C22 C22
N1 N1
C2 C2
C6 C6
C5 C5
C4 C4
C3 C3
C11 C11
C10 C10
C9 C9
C8 C8
C12 C12
C17 C17
C14 C14
N15 N15
C18 C18
C19 C19
C20 C20
O26 O26
S23 S23
O25 O25
N24 N24
C21 C21
N16 N16
N13 N13
N7 N7
H22 H22
H2 H2
H5 H5
H4 H4
H3 H3
H11 H11
H8 H8
H12 H12
H18 H18
H19 H19
H241 1H24
H242 2H24
H21 H21
H16 H16