Atom Nomenclature for DB8

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 DB8

Atom Name (V3) Atom Name (V2)
CAA CAA
O02 O02
CAC CAC
NAD NAD
CL1 CLAE
CL2 CLAF
CAG CAG
CAH CAH
CAI CAI
CAJ CAJ
CAK CAK
CAL CAL
CAM CAM
CAN CAN
CAO CAO
CAP CAP
CAQ CAQ
CAR CAR
CAS CAS
NAT NAT
NAU NAU
OAV OAV
OAW OAW
CAX CAX
CAY CAY
CAZ CAZ
CBA CBA
CBB CBB
CBC CBC
CBD CBD
CBE CBE
CBF CBF
CBG CBG
NBH NBH
NBI NBI
C01 C01
HAA HAA
HAAA HAAA
HAAB HAAB
HAC HAC
HACA HACA
HAH HAH
HAI HAI
HAJ HAJ
HAK HAK
HAL HAL
HAM HAM
HAMA HAMA
HAN HAN
HANA HANA
HAO HAO
HAOA HAOA
HAOB HAOB
HAP HAP
HAPA HAPA
HAQ HAQ
HAQA HAQA
HAR HAR
HARA HARA
HAS HAS
HASA HASA
HNAU HNAU
H01 H01
H01A H01A
H01B H01B