Atom Nomenclature for EEC

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 EEC

Atom Name (V3) Atom Name (V2)
O2 O2
N3 N3
O5 O5
C11 C11
C12 C12
C13 C13
C14 C14
C16 C16
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
C27 C27
N2 N2
C7 C7
C6 C6
O1 O1
C8 C8
C9 C9
C10 C10
O4E O4E
O4 O4
N1 N1
C2 C2
C1 C1
O9 O9
C3 C3
C4 C4
C5 C5
O8 O8
O8E O8E
N9 N9
H16 H16
H17 H17
H18 H18
H19 H19
H20 H20
H21 H21
H22 H22
H23 H23
H24 H24
H25 H25
H3 H3
H9 H9
H10 H10
H11 H11
H12 H12
H13 H13
H8 H8
H1 H1
H2 H2
H4 H4
H5 H5
H6 H6
H7 H7
H26 H26
H14 H14
H15 H15