Atom Nomenclature for TCL

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 TCL

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C6 C6
C5 C5
C4 C4
C3 C3
C11 C11
C10 C10
C9 C9
C8 C8
C12 C12
C13 C13
O7 O7
CL14 CL14
CL15 CL15
CL16 CL16
O17 O17
H11 1H1
H41 1H4
H31 1H3
H101 1H10
H121 1H12
H131 1H13
H171 1H17