Atom Nomenclature for T55

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 T55

Atom Name (V3) Atom Name (V2)
CAD CAD
CAE CAE
CAG CAG
CAH CAH
CAI CAI
CAJ CAJ
CAK CAK
CAL CAL
CAF CAF
C C
O O
OXT OXT
HXT HXT
HAL1 HAL1
HAL2 HAL2
HAK1 HAK1
HAK2 HAK2
HAJ1 HAJ1
HAJ2 HAJ2
HAI1 HAI1
HAI2 HAI2
HAH1 HAH1
HAH2 HAH2
HAG1 HAG1
HAG2 HAG2
HAE HAE
HAD1 HAD1
HAD2 HAD2
HAD3 HAD3
HAF1 HAF1
HAF2 HAF2
HAF3 HAF3