Atom Nomenclature for TCA

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 TCA

Atom Name (V3) Atom Name (V2)
C1 C1
O O
OXT OXT
C2 C2
C3 C3
C31 C31
C32 C32
C33 C33
C34 C34
C35 C35
C36 C36
HXT HXT
H2 H2
H3 H3
H32 H32
H33 H33
H34 H34
H35 H35
H36 H36