Atom Nomenclature for CT7

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 CT7

Atom Name (V3) Atom Name (V2)
O3 O3
S1 S1
O2 O2
C16 C16
C15 C15
C17 C17
C18 C18
C14 C14
C13 C13
N5 N5
C9 C9
N2 N2
C10 C10
N1 N1
C11 C11
N3 N3
C8 C8
C7 C7
CL1 CL1
C12 C12
C20 C20
H15 H15
H17 H17
H18 H18
H14 H14
HN5 HN5
H11 H11
H8 H8
H12 H12
H201 1H20
H202 2H20
H203 3H20