Atom Nomenclature for CZI

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 CZI

Atom Name (V3) Atom Name (V2)
I I
C14 C14
C15 C15
C16 C16
C13 C13
C12 C12
C11 C11
C10 C10
C2 C2
O33 O33
O34 O34
N1 N1
C9 C9
N4 N4
C3 C3
O18 O18
C5 C5
C8 C8
C26 C26
C27 C27
C28 C28
C29 C29
C30 C30
C31 C31
C32 C32
N7 N7
C6 C6
C19 C19
C20 C20
C21 C21
C24 C24
C23 C23
C22 C22
O25 O25
H15 H15
H16 H16
H13 H13
H12 H12
H101 1H10
H102 2H10
H34 H34
H5 H5
H8 H8
H261 1H26
H262 2H26
H28 H28
H29 H29
H30 H30
H31 H31
H32 H32
HN7 HN7
H20 H20
H21 H21
H24 H24
H23 H23
H25 H25