Atom Nomenclature for AX8

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 AX8

Atom Name (V3) Atom Name (V2)
CAJ CAJ
CAO CAO
CLAC CLAC
CAN CAN
CLAB CLAB
CAG CAG
CAF CAF
CAM CAM
CAK CAK
NAS NAS
CAR CAR
CAI CAI
CAE CAE
CAD CAD
CAH CAH
CAQ CAQ
NAL NAL
CAP CAP
NAA NAA
HAJ HAJ
HAG HAG
HAF HAF
HAK HAK
HAKA HAKA
HAI HAI
HAE HAE
HAD HAD
HAH HAH
HNAA HNAA
HNAB HNAB