Atom Nomenclature for C1K

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 C1K

Atom Name (V3) Atom Name (V2)
CAI CAI
CAF CAF
CAE CAE
CAG CAG
CAJ CAJ
CAL CAL
NAK NAK
CAQ CAQ
CAO CAO
OAD OAD
CAM CAM
OAB OAB
CAN CAN
OAC OAC
CAP CAP
CAH CAH
OAA OAA
HAI1 HAI1
HAI2 HAI2
HAF1 HAF1
HAF2 HAF2
HAL HAL
HAE1 HAE1
HAE2 HAE2
HAG1 HAG1
HAG2 HAG2
HAJ1 HAJ1
HAJ2 HAJ2
HAK HAK
HAQ HAQ
HAO HAO
HAP HAP
HAD HAD
HAM HAM
HAB HAB
HAN HAN
HAC HAC
HAH1 HAH1
HAH2 HAH2
HAA HAA