Atom Nomenclature for EFP

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 EFP

Atom Name (V3) Atom Name (V2)
C1 C1
N3 N3
C4 C4
C6 C6
N7 N7
C9 C9
C10 C10
C13 C13
C14 C14
C16 C16
C18 C18
O19 O19
C20 C20
C24 C24
C26 C26
O28 O28
N29 N29
C30 C30
C32 C32
C35 C35
N37 N37
C39 C39
C40 C40
O44 O44
C45 C45
H1 H1
H4 H4
HN7 HN7
H10 H10
H10A H10A
H14 H14
H16 H16
H20 H20
H20A H20A
H20B H20B
H24 H24
H26 H26
H30 H30
H32 H32
H32A H32A
H35 H35
HN37 HN37
H40 H40
H40A H40A
H40B H40B
H45 H45
H45A H45A