Atom Nomenclature for IRE

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 IRE

Atom Name (V3) Atom Name (V2)
CAO CAO
CAL CAL
OAU OAU
CAM CAM
CAP CAP
NBE NBE
CAN CAN
CAJ CAJ
CAK CAK
OAV OAV
CBA CBA
CAZ CAZ
CAH CAH
OAT OAT
CAA CAA
CAI CAI
C5 C5
C4 C4
N3 N3
C2 C2
N1 N1
C6 C6
NAS NAS
CAY CAY
CAG CAG
CAX CAX
CL CL
CAW CAW
FAB FAB
CAD CAD
CAE CAE
HAO1 HAO1
HAO2 HAO2
HAL1 HAL1
HAL2 HAL2
HAM1 HAM1
HAM2 HAM2
HAP1 HAP1
HAP2 HAP2
HAN1 HAN1
HAN2 HAN2
HAJ1 HAJ1
HAJ2 HAJ2
HAK1 HAK1
HAK2 HAK2
HAH HAH
HAA1 HAA1
HAA2 HAA2
HAA3 HAA3
HAI HAI
H2 H2
HAG HAG
HAD HAD
HAE HAE
H1 H1