Atom Nomenclature for EHD

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 EHD

Atom Name (V3) Atom Name (V2)
O18 O18
C14 C14
C15 C15
C19 C19
O22 O22
C20 C20
O23 O23
C16 C16
C17 C17
C21 C21
O24 O24
C25 C25
C31 C31
N12 N12
C11 C11
C8 C8
C7 C7
C6 C6
C5 C5
N10 N10
C9 C9
C13 C13
C1 C1
C2 C2
C3 C3
C4 C4
H191 1H19
H192 2H19
H17 H17
H24 H24
H251 1H25
H252 2H25
H311 1H31
H312 2H31
H313 3H31
H111 1H11
H112 2H11
H7 H7
H1 H1
H2 H2
H3 H3
H4 H4